General Python MCQs

294. If I do 'x = X(); y = x[1, 2:3, 4:5:6]', what type is passed to x.__getitem__?

295. If a and b are strings, which of the following is equivalent to [a] + [b] ?

296. Given an open file object f, what does f.read() result in when the end of the file has been reached?

297. The distribute library is a fork of

298. What does the code 'import sndhdr; sndhdr.what(filename)' Do?

299. The CPython implementation garbage collector detects reference cycles by ___.

300. Which is equivalent to 'x = a + b'?

301. If you wanted to determine the type of an image with the stdlib, you would use functions from which module?

302. If a = 1 and b = 2, what does the expression 'a and b' return?

303. In the Python 2.x interpreter, which piece of code will print 'hello world' with only a space between the words?

304. Which of these Python 2.7 APIs provides a high (for the platform) resolution wall-clock timer?

305. The built in method reversed() returns:

306. Is it possible to use Java classes in Jython?

307. In a Python 3 class declared as 'Child(Base)', what is the correct way for a method 'foo()' to call its base implementation?

308. In Python 3.2's stand CPython implementation, all built-in types support weak-referencing.

309. Consider a method x.foo decorated with @classmethod: What would x.foo.__class__ return?

310. Result of the following expression 7 // 3 + 7 // -3?

311. The function apply has the same functionality as:

312. In Python 3.x, what must also happen if a class defines __eq__() ?

313. What expression evaluates to 'python 2.7'?

314. All Warnings in Python are subclassed from:

315. Which is a module in the Python Standard Library?

316. There are two strings, 'a' and 'b' with same values ,a='harmeet' and b='harmeet'. Which one of the following case is true?

317. Which of these functions would be used to display the internals of an object instance

318. Given a X = 'a b c', what does X.split() return?

319. How is Python's code organized?

320. How many positional arguments can be passed to the below function def my_func(*args): pass

321. Which statement would you use to import a module called 'foo'?

322. Read the following statements: >>> word = 'Help' + 'A' >>> word[:2] Which of the following will be the output of the above code?

323. Output of the following statements: >>> import string >>> s = 'little fox\011jumps over a lazy dog' >>> string.expandtabs(tabsize=1, s=s)

324. Read the following statements: Statement 1: The conditions used in 'while' and 'if' statements can contain only comparison operators. Statement 2: The operators 'is' and 'is not' compare whether two objects are really the same object. Which of the following is correct?

325. Examine the following prototype for the 'open' function of the file class in Python 2.2+: open(fname [,mode [,buffering]]) Which of the following is correct for the 'buffering' argument?

326. You need to implement an email management system. You want to receive and send the emails from your Python application. Which of the following protocols will be used for email implementation?

327. Which type is correct for objects created by the built-in buffer() function?

328. Read the following statements: >>> word = 'Help' + 'A' >>> '<' + word*5 + '>' Which of the following will be the output of the above code snippet?

329. Python is a platform independent language and it is available on different platforms. Which of the following is not related to Python?

330. How do you refer to the null object in Python?

331. The central concept in Python programming is that of a namespace. Each context (i.e., scope) in a Python program has a hierarchically organized collection of namespaces available to it. Which of the following types of scopes can be used in namespaces?

332. Output of the following statement? >>> 1j * 1J

333. Which statement is correct for the interpreter when it is in interactive mode?

334. Output of the following statements: >>> letlist = ('a','B','Z','r','w') >>> for c in letlist: print c, # inserts spaces

335. Read the following statements: >>> import string >>> str = 'Mary had a lamp in her Hand' >>> str = string.replace(str, 'ha', 'stan') >>> str Which of the following will be the output?

336. Declaring a function is simply the preferred way of describing an object and binding it to a name. Which of the following statements bind an 'anonymous' function to a name?

337. You have a script file where no script and no arguments are given. Which of the following will be the value of sys.argv[0]?

338. Read the following statement and state whether it is true or false: Strings and files provide a storage container for an unlimited amount of (textual) information that is directly structured only by the linear position of the bytes.

339. The Python standard library contains intermediate-level modules to support all the most popular internet communication protocols. Which of the following is a valid module for Internet communication in Python?

340. Headers are passed with Internet calls. Which exception occur if there is an error in a header?

341. Which is correctly using 'self'?

342. Which is the correct prototype for the 'open' function of the file class in python 2.2+?

343. The Python interpreter is very open to introspection. You can examine and modify many aspects of the Python runtime environment. Which of the following modules is used to retrieve information about Python runtime?

344. Which statement/s is/are correct about lossy or lossless compression?

345. Which is a stored string.printable constant?

346. Which is the base language of Python?

347. Which will disable output buffering in Python?

348. Which member of the object class compare two parameters?

349. Object is the base class of new-style datatypes. Which function is not a member of the object class?

350. In Python, what is the default maximum level of recursion?

351. Various email and news clients store messages in a variety of formats, many providing hierarchical and structured folders. Which of the following provides a uniform API for reading the messages stored in all the most popular folder formats?

352. Which is the main features of Python?

353. Which variable store parameter passed from outside?

354. Which function can change the maximum level of recursion?

355. Which is the correct prototype of the string.find() function?

356. It is possible to use encoding other than ASCII in Python source files. The best way to do it is to put one more special comment line right after the #! line to define the source file encoding. Which of the following is the correct statement to define encoding?

357. How can a null object be declared in Python?

358. Which module lets you check whether two files are identical, and whether two directories contain some identical files?

359. Which function could be used to list every file and folder in the current directory?

360. The core text processing tasks in working with email are parsing, modifying, and creating the actual messages. Which of the following modules deal with parsing and processing email messages?

361. Which user input method will act like a file-object on which read and readline functions can be called?

362. Which protocol libraries can be used for an email implementation in a Python application?

363. Which statement import every name in a module namespace into the current namespace?

364. Correct way to remove an installed Python package?

365. One common way to test a capability in Python is to try to do something, and catch any exceptions that occur. Which of the following is the correct mechanism of trapping an error?

366. The most important element of the email package is the message. The email class provides the classes for messages in Python. Which of the following classes is used for the message?

367. Consider the function: def hello(): return 'Hello, world!' Which is the correct way to make a decorator that could be used to make hello() return '#Hello, world!#'?

368. Which module keep prior directory listing in the memory to avoid the need for a new call to the file system?

369. Which module is used internally to determine whether a path matches?

370. Which statement copy the contents of a list and not just a reference to the list?

371. Which function is used to send audio data via the Internet?

372. Read the following statements: Statement 1: A simple assignment statement binds a name into the current namespace, unless that name has been declared as global. Statement 2: A name declared as global is bound to the global (module-level) namespace. Which of the following is correct?

373. Which command would produce the following result: result: 'line 1\nline 2'

374. Which is not used to install Python packages?

375. Which exception occurs while importing a module?

376. Which statement can be used to remove an item from a list by giving the index?

377. The least sophisticated form of text output in Python is writing to open files. In particular, which of the following streams can be used?

378. Which option is true regarding these two code samples? Code sample 1: def main(): for i in xrange(10**8): pass main() Code sample 2: for i in xrange(10**8): pass

379. How many arguments can a print statement handle?

380. When is the 'yield' keyword used in Python?

381. Best way to check if the object 'myobject' is iterable in Python?

382. In Python, built-in exceptions can be inherited from. Which of the following is the base exception class?

383. Given a program that saved a text file in the directory '/temp_files', which of the following will make sure that '/temp_files' exists before writing the file?

384. Read the following statements: >>> lst = ['spam','and','eggs'] >>> lst[2] = 'toast' >>> print ''.join(lst) >>> print ' '.join(lst) Which of the following is the output of the second print statement in the above code snippet?

385. Read the following statements: >>> import string >>> s = 'mary\011had a little lamb' >>> print s Which of the following will be the output of the above code snippet?

386. Read the following statements: Statement 1: Many string module functions are now also available as string object methods. Statement 2: To use string object methods, there is no need to import the string module. Which of the following is correct?

387. What would the 'sorted_tel' be in the following code: tel = {'jack': 4098, 'sape': 5139, 'bill': 3678, 'mike': 2122} sorted_tel = sorted(tel.items(), key=lambda x: x[1])

388. Inheriting from a base class enables a custom class to use a few new capabilities, such as slots and properties. Which of the following is the base class of new-style datatypes?

389. How can a list be split into equal sized chunks?

390. Writing to STDOUT and STDERR is fairly inflexible, and most of the time the print statement accomplishes the same purpose more flexibly. How many arguments can a print statement handle?

391. Which is the best way to reverse the string 'Test String' in Python?

392. What is the result of the following code: >>> import itertools >>> x = itertools.count(0) >>> x.__class__.__name__

393. What is the most flexible way to call the external command 'ls -l' in Python?

394. Which is the correct method for changing a global variable inside a function?

395. Which list flattening method will have the shortest running time?

396. Which is the correct way to flush output of Python print?

397. Which is the best method to find the indices of all occurances of a word in a string? line = 'mary had a little lamb, little lamb, little lamb' word = 'lamb'

398. In Python 2.x, which is the way to check to make sure that the variable 'x' is not a string?

399. Which will throw an exception in Python?

400. Which function modifie the list in place to indicate which items are directories, and which are plain files?

401. Which Python module can be used for copying files?

402. Which statement is true? A. ._variable is semi-private and meant just for convention. B. .__variable is considered superprivate and gets name mangled to prevent accidental access. C. .__variable__ is typically reserved for built-in methods or variables.

403. How can an element be removed from a list using its list index?

404. Which is the correct way to check to see if the variable theVar is an integer?

405. Which is the base class for new-style file objects?

406. Which method return the ASCII value of a character in Python?

407. Output of the following code: name = 'Jon' name.rjust(4, 'A')

408. What is a metaclass in Python?

409. Correct way to call the private method, myPrivateMethod(), in class MyClass, using dir(obj)? class MyClass: def __myPrivateMethod(self): print dir(obj)

410. Output of the following code? def foo(param1, *param2): print param1 print param2 def bar(param1, **param2): print param1 print param2 foo(1,2,3,4,5) bar(1,a=2,b=3)

411. Which is the correct way to execute a program from inside Python without having to consider how the arguments/quotes are formatted?

412. Correct way to delete a directory that is not empty using Python?

413. Which is the correct way to write a generator which will output the numbers between 1 and 100 (inclusive)?

414. Which code snippets concatenates the list a_list = [1, 2, 3] with the tuple a_tuple = (4, 5), so the result would be [1, 2, 3, 4, 5]?

415. Sometimes, an object needs to be converted into its string representation. Fortunately, the object class provides functionality for this. Which of the following returns a string representation of the object 'self'?

416. Which code snippet convert the hexademical number 0x1000 to a decimal correctly?

417. Output of the following code? def change_list(list1, list2): list1.append('four') list2 = ['and', 'we', 'can', 'not', 'lie'] outer_list1 = ['one', 'two', 'three'] outer_list2 = ['we', 'like', 'proper', 'English'] change_list(outer_list1, outer_list2) print outer_list1 print outer_list2

418. Best way to randomly select an item from list?

419. Which exception is raised while using sys.exit()?

420. Which statement will redirect the output of the print statement into a file-like object named 'test'?

421. Read the following statements: >>> word = 'Help' + 'A' >>> word[2:] Which of the following will be the output of the above code?

422. Which code samples will determine the last day of a given month?

423. Which system attributes keeps the integer of the largest supported code point for a Unicode character under the current configuration?

424. Which is the correct syntax for Python dictionary comprehension?

425. Which option will import a module which is not in PYTHONPATH or the current directory?

426. Read the following code snippet: import types, exceptions def overloaded_get_text(o): if type(o) is type.FileType: text = o.read() else: raise exceptions.TypeError return text Which of the following lines has incorrect syntax?

427. Which is an incorrect way of determining whether the type of an object (obj) is list?

428. Output of the following statement: >>> 'ab123'.islower(), '123'.islower(), 'Ab123'.islower()

429. If a name has not been bound inside some accessible scope, how can it be dereferenced?

430. Given the two dictionaries 'x' and 'y', which of these codes would not create a final, merged dictionary 'z'? x = {'a':1, 'b': 2} y = {'b':10, 'c': 11} z = {'a': 1, 'c': 11, 'b': 10}

431. Select all incorrect statements regarding functions decorated with staticmethod and functions decorated with classmethod:

432. Which code samples will read arguments if the script is run from the command line?

433. Given a program that has different combinations of conditions, programming a custom function for each combined condition can produce an excessive number of functions. Instead, for conditions that should be jointly satisfied, several filters can be nested within each other. Which of the following statements does this correctly?

434. Read the following code: def approx(x): if hasattr(x,'__and__'): return x & ~0x0FL try: return (round(x.real,2)+round(x.imag,2)*1j) exception AttributeError: return round(x,2) Which of the following lines is incorrect in the above code?

435.

Which of the following is the correct way to recursively find files with the extension ".html" in the directory "site" with Python?

436. Which will determine the number of CPUs available in the operating environment?

437. Correct ways to test if a key exists in a dictionary?

438. What is the correct syntax that will set the variable 'var1' to the value 'correct' if variable 'a' is greater than 1?

440. While running an application, a user pressed the interrupt key (Ctrl + C). Which of the following exceptions will occur?

441. Consider the following code: myString = ' Hello! ' Which of the following choices will remove the spaces at the beginning and end of myString?

442. Which module can be used for profiling Python code?

443. Read the following statements in which nested filters are used: shortline = lambda line: len(line) < 25 short_regvals = filter(shortline, (isRegDBVal, lines)) Which of the following errors is present in the above code?

444. Which is correct about Python?

445. Correct way to output the name of any function (including builtin functions) using Python?

446. What is the difference between the two methods, 'foo is None', and 'foo == None', for the purposes of determining if the type of an object is None?

447. Function sys.getrefcount(obj) returns the number of references to the object obj. Which of the following is the correct value returned by this function?

448. Which is the correct way to print to stderr in Python?

449. Python 2.3+ includes a standard module that implements a set datatype. Which of the following statements is true about the set datatype?

450. Which type is correct for instances of user-defined classes?

451. Read the following statements: Statement 1: The new-style class int already supports Bitwise, so there is no need to implement it again in derived classes. Statement 2: With new-style classes, data values can be referred to directly with ‘myself’. Which of the following is correct?

452. Which code snippet would work as the best switch-case equivalent?

453. Which is the correct way to get the size of a list in Python?

454. Which statement is correct?

455. Which statement about the 'has_key()' dictionary method and the 'in' operator are true? d = {'a': 1, 'b': 2} 'a' in d d.has_key('a')

456. Which will close a list in Python?

457. Read the following statements: Statement 1: By default, a print statement adds a linefeed to the end of its output. Statement 2: The linefeed can be eliminated by adding a trailing comma to the statement. Which of the following is correct?

458. Read the following code snippet: >>> o1 = C() >>> o1.lst = [1,2,3] >>> o3 = copy.deepcopy(o1) >>> o1.lst.append(17) What will be the output of '>>> o3.lst' and '>>> o1.lst'?

459. Which option is correct regarding the difference between __repr__ and __str__?

460. Divide by zero is a very common error. Which of the following handles this exception?

461. Which is the best way of checking if a string could be represented as a number?

462. Which is the proper way to declare custom exceptions in modern Python?

463. To make numbers be of a specific length, zeroes are padded to the left. Which of the following is the best way to pad a string with zeroes to the left, to make its length 5? The string is: num = '123'

464. Which function prints all of the current properties and values of any kind of object?

465. What is the correct way to open the file 'test.txt' and append the text 'foo' to it?

466. What function is used to find the absolute path of a file?

467. Which code snippet can be used to get the multiples of 2 from the list a = [1, 2, 3, 4, 5, 6, 7, 8, 9] ?

468. For the list 'thelist = [1, 2, 3, 4, 5]', how could the last two elements of the list (4, 5) be selected using slices?

469. What is the best way to check if a list is empty? x = []

470. Which statement is/are correct about range() and xrange()?

471. Which statement is true regarding lists and arrays in Python?

472. Which statement is true regarding the __all__ module level variable?

473. If x = '10' (as a string), which of the following is the correct way to typecast it to an integer?

474. Which data types is not supported in python ?

475. Which of these is not a Python datatype?

476. Which operator is overloaded by invert() ?

477.

What are the states/features supported by a RLock object?

478. How to hide status bar in ios app with Swift?

479. Which code is valid to convert a buffer buf to JSON object?

480. Which is floor division ?

481. Python programming language was designed by___ ?

482. Output of following code? class Example: def __init__(self, i = 2, j = 3): self.i = i self.j = j def __str__(self): return'Example' def __eq__(self, other): return self.i * self.j == other.i * other.j def main(): x = Example(1, 2) y = Example(2, 1) print(x == y) main()

483. Which is correct about getting a free port number?

484. Which built-in Python function can be used to get the length of a list, tuple, string, dictionary or other object?

485. Which will be returned by readlines() method?

486. Which function do you use to read data using binary input?

487. Output of following code? x, y = 15, 45 res = x if x < y else y print(res)

488. Which piece of code best describes the way to parse data from JSON file?

489. Output of the below code snippet? squares = [] for x in range(5): squares.append(lambda: x**2) x = 8 for i in range(5): print(squares[i]())

490. Which of the following are the characteristics of the __init__.py file?

491. What is the result of the following code: listOne = [1, 3, 5] listTwo = [2, 4, 6] listNew = listOne + listTwo print listNew

492. Which is incorrect regarding modules in Python?

493. What is the output of 'Dummy Text is my text'.strip('Te') -

494. Which of the following statements are true?

495. Consider the code, and choose the correct statement: class A: def __init__(self, i = 0): self.i = i class B(A): def __init__(self, j = 0): self.j = j def main(): b = B() print(b.i) print(b.j) main()

496. Check whether an object x is an instance of class A, use _____.?

497. Which statement would create an instance of Firm class correctly?

498. In the following code, what will be printed ? class parent: def __init__(self, param): self.v1 = param class child(parent): def __init__(self, param): self.v2 = param obj = child(5) print '%d %d' % (obj.v1, obj.v2)

499. What function do you use to read a string?

500. What is the return value of trunc()?

501. Output of following code? def addItem(l): l += [0] mylist = [1, 2, 3, 4, 5] addItem(mylist) print len(mylist)

502. orig = { '1' : 1, '2' : 2 } a_copy = orig.copy() orig['1'] = 5 sum = orig['1'] + a_copy['1'] print sum What will be printed in the above Python code?

503. Which is the correct way to empty a list, using theList as an example?

504. Output of following code? nums = list() i = 3 while (i < 9): nums.append(i) i = i+2 print(nums)

505. Which will return the size of a file?

506. Output of following code? from functools import * def add(a, b, c): return 50*a + 5*b + c res = partial(add, c=2, b=1) print(res(2))

507. Which code snippet below will not return True?

508. Output if following code executed? a1 = 0 b2 = 1 c3 = 2 def fru_box(): a1 = b2 + c3 print((a1, '\t', b2, '\t', c3)) return fru_box()

509. A hashing function ____?

510. Correct way to add a new element to a list?

511. Output of following code? counter = 1 def count(): global counter t = (1, 2, 3) for i, v in enumerate(t): counter += i + v count() print counter

512. Considering the following code snippet:- def test (a, b, c): pass Which of the following is a true statement?

513. Which environment variable for Python is an alternative module search path?

514. What will be the following code output? import math res = math.pow(4, 3) def addition(x, y): return (x+y) def subtract(x, y): return (x-y) def multiply(x, y): return (x*y) def divide(x, y): return (x%y) import mathExample print mathExample.res

515. Output of the below code snippet? x = 10 def foo(): print(x) x = x - 1 foo() print(x)

516. What is the default encoding in the string function encode()?

517. Output of following code? print '\x48\x49!'

518. The output of executing string.ascii_letters can also be achieved by ____?

519. Invoking the ___ method converts raw byte data to a string?

520. Which method is used to convert raw json objects to Json in python?

521. How to get JSON to load into an OrderedDict in python?

522. The side option of the pack manager may be _____?

523. sys.path is initialized from which of the following locations ?

524. On a Unix-like system, what does Python's sleep.time() function block?

525. The __ function can be used to check if a file f exists?

526. Output of following code? def f2(n, result): if n == 0: return 0 else: return f2(n - 1, n + result) print(f2(2, 0))

527. Which one is reentrant lock type?

528. Output of following code? import threading k = 10 x = 0 m = threading.Lock() def foo(): global x for i in xrange(k): with m: x += 1 def bar(): global x for i in xrange(k): with m: x -= 1 t1 = threading.Thread(target=foo) t2 = threading.Thread(target=bar) t1.start() t2.start() t1.join() t2.join() print x

529. What is the method to retrieve the list of all active thread objects?

530. Output of following code? d = lambda p: p * 2 t = lambda p: p * 3 x = 2 x = d(x) x = t(x) x = d(x) print x

531. Output of following code snippet? def f(x): return x % 2 != 0 and x % 3 != 0 result=filter(f, range(1, 20)) print result

532. Which will be the output of the below code snippet? def foo(x=[]): x.append(1) print(x) foo() foo() foo()

533. Which is the correct way to determine a variable's type in Python?

534. Consider the following Python code: test = 1/2 What is the value of 'test' in Python 2.7 and 3.5, respectively ?

535. Which will be the output of the below code snippet? class foo: def normal_call(self): print('normal_call') def call(self): print('first_call') self.call = self.normal_call y = foo() y.call() y.call() y.call()

536. What gets printed in the code below ? def f(x, l=[]): for i in range(x): l.append(i * i) return l f(2) f(3, [3, 2, 1]) print f(3)

537. Output of the following code? def name(X, Y, Z, **opt): if opt.get('number') == 'Y': return Y res = name(1, 2, 3, action = 'sum', number = 'Y') print 'Result: %d' % res

538. Which exception raised for an error that doesn’t fall in any of the categories?

539. What will the following code do? somelist[:] = [tup for tup in somelist if determine(tup)]

540. Which function immediately terminates the program?

541. Which will remove duplicate elements from a list (O(n)), whilst preserving order?

542. Correct way to increment the value of the variable 'i' by 1?

543. Which is the correct way to change the current working directory in Python?

544. Which can be used to create a directory?

545. Which answer will catch an exception, but do nothing with it?

546. How to convert a json string to Python object?

547. _____ measures how full the hash table is?

548. What gets printed on the console for the following Python 2.x code? A0 = dict(zip(('a','b','c','d','e'),(1,2,3,4,5))) A1 = range(5) A2 = sorted([i for i in A1 if i in A0]) A3 = sorted([A0[s] for s in A0]) A4 = [i for i in A1 if i in A3] A5 = {i:i*i for i in A1} A6 = [[i,i*i] for i in A1] print A6

549. In Python, a string literal is enclosed in _____?

550. What is the type of x? x = 10.0//5

551. Which is the best way to convert a Python time.struct_time object into a datetime object?

552. An object can contain?

553. What is the type of each element in sys.argv ?

554. Output of following code? var1 = lambda var: var * 2 ret = lambda var: var * 2 result = 3 result = var1(result) result = ret(result) result = var1(result) print(result)

555. Which is the correct way to print a list called theList in reverse order?

556. Which method is used to get the name of a thread?

557. Which can be used to check if a value is an int? The value is a = 10

558. Which statement regarding tuple and list is wrong?

559. Considering Python 2.5, what will be the output of following code? fp = None with open('file.data', 'r') as fp: cont = f.read() print fp.closed

560. In Python 3, which is incorrect regarding data structures ?

561. In Python 3, which is correct regarding data types Lists, Tuples, Dictionaries and Sets ?

562. Which is NOT correct regarding unittest in Python 3?

563. Which is incorrect to say about CPython's garbage collection mechanism ?

564. Regarding Secure hashes and message digests in Python 3 using standard module hashlib, which of the following is true ?

565. Which is false regarding urlretrieve function from the standard module urllib in Python 2?

566. Which statement is incorrect regarding Python language?

567. Which is true regarding urlopen function from the standard module urllib in Python 2?

568. Considering this Python 2.x snippet, while(True): try: doWork() except TypeError: print 'Type error' except Exception: print 'General exception' except GeneratorExit, KeyboardInterrupt: print 'Existing exception' which of the following is correct to say?

569. Which statement is incorrect regarding Concurrency in Python?

570. From the following which is not a good recommendation for Threading in Python?

571. Which option in sqllite.connect() method avoids OperationalError telling that the database file is locked?

572. Regarding Thread Synchronization Primitives in Python, which of the following is incorrect ?

573. Consider the Python function: def secret_function(sPath): import os for sChild in os.listdir(sPath): sChildPath = os.path.join(sPath,sChild) if os.path.isdir(sChildPath): secret_function(sChildPath) else: print(sChildPath) What would be the most correct statement to describe above function?

574. How to get access to _b in outside of class a?

575. Suppose a database table row has to be represented, and a field needs to be accessed via its field name or field index; which of the following data types suits this purpose best?

576. Which statement is correct about assertions in Python?

577. Regarding Unicode in Python 3, which of the following is incorrect ?

578. Output of the following code be: def a(): print 'a executed' return [] def b(x=a()): x.append(5) x.append(1) print x b() b() b()

579. Suppose we have a User class, how do we make a new User object?

580. Whic statement is true regarding __slots__ in Python?

581. Regarding the code below, what's correct statement ? class Book: def __init__(self, isbn): self.isbn = isbn isbn = 'test' book = Book(12345)

582. What command is used to get the hostname of the computer the Python script is running on?

583. Output of following code? items = set() items.add('google') items.add('apple') items.add('microsoft') print(items)

584. Output of the code below? s = 'messha' for i in range(len(s)): print(i)

585. Output of the following? my_list = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10] new_list = list(filter(lambda x: (x%2 == 0) , my_list)) print(new_list)

586. Which snippet will return the list of all occurances of 'b' in a = ['a','b','c','b'] ?

587.

588. Output of the below code snippet? x = [] y = x y.append(10) z = 5 w = z z = z - 1 print(y) print(x) print(z) print(w)

589. Output of following code? def val1(param): return param def val2(param): return param * 2 def val3(param): return param + 5 result = val1(val2(val3(1))) print(result)

590. Output of the following? t=(1,2,4,3,5) print(t[1:3])

591. How can a list of dictionaries be sorted by the values of the dictionaries?

592. Which is the best possible way of getting the local ip address using stdlib of python?

593. Which of these answers will create a list that looks like this: ['2','2','2']?

594. Output of the following Python code? def KToFiTemp): assert (Temp >= 0),'Colder than absolute zero!'return ((Temp-273)‘1.8)+32 print KToF(273) print int(KToF(505.78)) print KToF(-5)

595. Analyse the given Python code and choose the correct output from the given options. pdata = 50 try: pdata = pdata/0 except ZeroDivisionError: print('0 ', end = '') else: print('1', end = '') try: pdata = pdata/5 except: print('1', end = '') else: print('0', end = '')

596. The items() method in Python is used for returning the list with all dictionary keys and values.

597. In Python 3.4.2, which symbol is used for writing a comment?

598. This question is based on the graphic shown below. Choose the correct output of the given Python code.

599. Analyse the given Python code and answer the question that follows. import math a = math.pi/6 b = 3 c = 4 print (math.tan(a)) print ('result = ', end='') print (math.hypot(b,c)) What will be the correct output of the above Python code?

600. What would be the output of the given Python code. when executed?

601. Output of the following Python language code? def square(n): return (n‘n+1) if _name_ = '_main__': mt = [1,2,3,4,5,0] rt = [] for num in mt: rt.append(square(num‘2)+1‘4) printlrt)

602. Correct answer from the given options. n1 = 1.5 n2 = 6.3 s = float(n1) + float(n2) print('{0}'.format(s)) s //= 3 print(s)

603. In relation to the exceptions in Python, which of the given exceptions is raised when a generated error code does not fall into any category?

604. This question is based on the graphic shown below. The Python code given in Figure 1 of the image was supposed to give the output that is given in Figure 2, but lines number 14 and 24 are coded incorrectly. Choose the correct lines from the following options that will replace both the lines to obtain the desired output.

605. Consider the Python 3.4.2 code that is given in the image. Choose the correct line(s) number from the following options that will not give an output as 'None'.

606. This question is based on the graphic shown below. Choose the correct output of the given Python code.

607. Output of the following Python code? x = 5.2 x **= 3 print(x)

608. Output of the following Python code? try: x = 11 Hx>8z y = x/(X-3) print (y) exceptaeroDivisionError, NameError): print ('1')

609. Correct output of the following Python code? import bisect # initializing list li = [1, 3, 4, 4, 4, 6, 7] print ('Output = ', end='') print (bisect.bisect(li, 4)+bisect.bisect_left(li, 4)+bisect.bisect_right(li, 4, 0, 4))

610. Output of the following Python code? def f(): print (s) s = 'Me too.' print (s) s = 'Hi' f() print (s)

611. This question is based on the graphic shown below. What will be the correct output of the given Python code?

612. Which line of code results in a compilation error? 1. c1 = { 'A' : 'B', 'C' : 19 } 2. c2 = { 'ID' , 47 } 3. sequ = ('A', 'C', 'D') 4. c1.update(c2) 5. print (str(c1)) 6. ct = dict.fromkeys(sequ,5) 7. print (str(ct))

613. Which Python/C API functions will NOT always return NULL?

614. When does the string method: isalnum() return true?

615. In relation to the exceptions in Python, which of the given exceptions is raised when an identifier is NOT found in the global or local namespace?

616. Output of the following program? i = [12, 9, 14] k = [7, 16, 11] for j in i[:]: for m in k[:]: if(j%m == 0): j = j // 2 m = m / 2 print (j, m) else: j = j + m m = m - j print (j, m)

617. Output of the following program? def country(*abc): if len(abc) == 1: item = abc[0] def f(obj): return obj[item] else: def f(obj): return tuple(obj[item] for item in abc) return f selection = [] selection = country(slice(2, None))('AUSTRALIA') print (selection)

618. Correct answer from the given options. ast = [2, 1, 3, 5, 3, 8] ast.sort() print (end='') for i in range(0, len(ast)): print(ast[i]*2, end=' ') print('\r') ast.reverse() print (end='') for i in range(1, len(ast)): print(ast[i]+3, end=' ')

619. This question is based on the graphic shown below. Consider the Python code in Figure 1 of the given image and choose its correct output from Figure 2.

620. This question is based on the graphic shown below. If the id's of 'a1', 'a2' and 'a3' in the given Python code are 3012123901, 3012123902 and 3012123903 respectively, then what will be the output of the code?

621. In which mode of files, the 'tell()' function returns an opaque number that gives the current position of the file object?

622. This question is based on the graphic shown below. Analyse the Python code given in Figure 1 of the image and choose the correct answer from the options given in Figure 2 of the same image.

623. The Python code given as Figure1 in the image was supposed to give the output that is shown as Figure2. However. it has some errors. Choose the correct lines number that contain errors.

624. Output of the python code given in Figure 1 of the image and choose the correct answer from the options given in Figure 2 of the same image.

625. In Python, which option is the correct exception that is raised when the next() method of an iterator does not point to any object?

626. Output of the following Python language code? import multiprocessing result = [] def s_p(mp): global result for num in mp: result.append(num * num+1) print('{}'.format(result)) if __name__ == '__main__': mp = [1,2,3,4] p1 = multiprocessing.Process(target=s_p, args=(mp,)) p1.start() p1.join() print('{}'.format(result))

627. Correct answer from the given options. import multiprocessing def enr(conn, msgs): for msg in msgs: conn.send(msg) print('{}'.format(msg)) conn.close() def cer(conn): while 1: msg = conn.recv() if msg == 'Hi': break print('{}'.format(msg)) if __name__ == '__main__': msgs = ['hello', 'hey', 'hru?', 'Hi'] parent_conn, child_conn = multiprocessing.Pipe() p1 = multiprocessing.Process(target=enr, args=(parent_conn,msgs)) p2 = multiprocessing.Process(target=cer, args=(child_conn,)) p1.start() p2.start() p1.join() p2.join()

628. In Python, while developing a program, if you know the place where the code is to be written, but at a later stages, then which control statements will you use?

629. Which databas can be used with Python? 1. MySQL 2. Oracle 3. Maria DB 4. Microsoft SQL Server

630. This question is based on the graphic shown below. What will be the correct output of the given Python 3.4.2 code?

631. Analyse the given Python code and answer the question that follows. def prt2(n): y=0 k = 2*n - 2 for i in range(0, n): for j in range(0, k): print(end=' ') k = k - 2 for j in range(0, i+1): y=y+k return(y) def prt3(m): if m > 1: for i in range(2,m): if (m % 3) == 0: print('failure') break else: print('success') else: print('failure') n = 5 m=prt2(n) k=prt3(m-3) How many times the word 'success' will be printed in the output, when the above code is executed?

632. While working with MySQL database in Python, which statement is/are correct about the fetchone() method? 1. It is used for fetching the next row of a query result set. 2. It is used for returning the number of rows that were affected by an execute() method. 3. It is used for fetching only the first or the last row of a query result set.

633. Output of the given Python code? tuple1 = (0 ,1, 2, 3) print(tuple1[1:]) print(tuple1[::-1]) print(tuple1[2:4])

634. Output of the Python code given in the image?

635. Output of the following Python language code? def ps(a,b = 2): return a + b a=8 s1 = 1 i = 1 while i <= a: s1 = s1 + i *2 i = i+1 print(ps(a=1) + ps(a=1, b=3)+s1)

636. Correct answer from the given options. class St: stm = stm = 'B' def __init__(self, n, r): self.n = n self.r = r a = St('D', 3) print (a.stm) St.stm = 'D' b = St('A', 4) print (a.stm) print (b.stm)

637. Output of the following Python code? lis = [11, 22, 33] lis1 = [14, 5, 6] lis2= lis + lis1 print (end='') for i in range(0,len(lis2)): print (lis2[i]*1, end=' ') print ("\r") lis3 = lis * 2 print (end='') for i in range(0,len(lis3)): print (lis3[i]+1, end=' ')

638. Output of the following Python code. def req(str): p=2 str = str.split() str2 = [] for i in str: if i not in str2: str2.append(i) for i in range(0, len(str2)): p=str.count(str2[i])+p print(p) def main(): str =str ='apple mango apple orange orange apple guava mango mango' req(str) if __name__=='__main__': main()'>

639. Output of the following Python code? value = [2, 3, 4, 5, 6] cd = 0 try: cd = value[3] except IndexError: print('0', end = '') except: print('1', end = '') finally: print('0', end = '') cd = 10 try: cd = cd/0 except ZeroDivisionError: print('1', end = '') finally: print('0')

640. Upon creation of the 'dumbdbm' database, files with which of the given extensions are created?

641. Output of the following Python code from the given options. set1 = set() set2 = set() for i in range(2, 6): set1.add(i) for i in range(4, 7): set2.add(i) print('Set1 = ', set1) print('Set2 = ', set2) set3 = set1 | set2 set4 = set1 & set2 print(set4) if set3 > set4: print('0') elif set3 < set4: print('2') else : print('1') if set4 < set3: print('0') set5 = set3 - set4 print(set5) if set4.isdisjoint(set5): print('1') set5.clear() print(set5)

642. Output of the following Python code? a = 1 def f(): print (a+2) def g(): a = 2 print (a+1) def h(): global a a = 3 print (a+3) print (a+4) f() print (a+2) g() print (a+1) h() print (a+2)

643. Correct answer from the options given below. tp1 = (Python ) m = 5 for i in range(int(m-1)):

644. Output of the following Python code? import math a = 3.4536 print ('Result = ',end='') print (math.trunc(a)+math.ceil(a)+math.floor(a))

645. Correct answer from the given options. class ErrorInCode(Exception): def __init__(self, data): self.data = data def __str__(self): return repr(self.data) try: raise ErrorInCode(1000) except ErrorInCode as ae: print ('0'ae.data) finally: print ('1')

646. Output of the following Python code? class Error(Exception): ''0...' pass class ValueTooSmallError(Error): '.'1uu' pass class ValueTooLargeError(Error): m2'... pass number = 10 while True: try: i_num =10 if i_num < number: raise ValueTooSmallError elif i_num > number: raise ValueTooLargeError break except ValueTooSmallError: print('1') printi) except ValueTooLargeError: print('1') printi) print('0')

647. This question is based on the graphic shown below. What will be the output of the given Python code?

648. Output of the following Python code? class Son(object): def __init__(self, n): self.n = n def gN(self): return self.n def sE(self): return False class Ploy(Son): def __init__(self, n, eid): super(Ploy, self).__init__(n) self.empID = eid def sE(self): return True def gID(self): return self.empID emp = Ploy("1", "0") print(emp.gN(), emp.sE(), emp.gID())

649. Output of the following Python code? def ps(a,b): s = a + b return (s, a) s, a = ps(0,4) a=a+4 s1 = 1 i = 1 while i <= a: s1 = s1 + i i = i+1 print(s1)

650. Output of the following Python code. import collections c1 = { 'a' : 1, 'b' : 2 } c2 = { 'b' : 3, 'c' : 4 } c3 = { 'f' : 5 } ch = collections.ChainMap(c1, c2) #print (ch.maps) ch1 = ch.new_child(c3) #print (ch1.maps) print (ch1['b']) ch1.maps = reversed(ch1.maps) print (ch1['b'])

651. Output of the following Python code? print (5/2) print (-5/2) print (5.0/2) print (-5.0/2)

652. This question is based on the graphic shown below. Which option will be the correct output of the given Python code?

653. Correct answer from the given options. double = lambda x: x * 2 mt = [1, 5, 4, 6, 8, 11, 3, 12] ns = list(filter(lambda x: (x%2 == 0) , mt)) print(double(6)) print(ns)

654. Which shell expression will give the result as an integer value? 1. >>> (100 - 4 x 5) / (20 - 2 x 5) 2. >>> 7.0 / 4 3. >>> 5 / 4 4. >>> 2 x 4 / 2 5. >>> 5 - 2

655. Choose the correct answer from the given options. def print_f(x): y=0 for i in range(1, x + 1): if x % i == 0: y=y+i+1 print(y) num = 32 print_f(num)

656. Output of the following Python code? def part1(): low = 365 up = 372 for num in range(low, up + 1): order = len(str(num)) s = 0 temp = num while temp > 0: digit = temp % 10 s += digit ** order temp //= 10 if num == s: print(num) part1()

657. Output of the following Python code? import sys rList = ['a', 0, 2] for bn in rList:

658. What will be returned by the following function? threading.enumerate()

659. Which option is a correct syntax of the 'AttlistDeclHandler' method?

660. Output of the following Python language code? from collections import OrderedDict od = OrderedDict() od['a'] = 1 od['b'] = 2 od['c'] = 3 od['d'] = 4 for key, value in od.items():

661. While working in Python 3.4, sockets are by default created in the _______ mode.

662. Which two of the following shell expressions in Python 3.4.2 will give syntax error? 10 * (1/0); 2 + char *3; while True print('Python'); print('4') + print('4'); while False; print('Python'); What will be the output of the below-given code in Python 3.4.2 shell? >>>str = 'example123' >>>str[::-1]

663. Otput of the following Python code? num1 = 10 num2 = 14 num3 = 12 if (num1 >= num2) and (num1 >= num3): lg = num1+4 elif (num2 >= num1) and (num2 >= num3): lg = num2+5 else: lg = num3+3 print(lg*3)

664. A lambda function in Python can take __________.

665. During the execution of the below-given Python/C API function, what will happen when no exception has been raised? int PyErr_ExceptionMatches(PyObject *exc)

666. Which of the following values of the 'timeout’ argument of the acquireo function represents an unbounded wait?

667. Correct answer from the given options. from string import Template Student = [(‘X',24), ('Y',32), ('2',20)] t = Template('$rn‘) for i in Student: print (t.substitute(n = i[0], m = i[1]‘3-1))

668. Output of the following Python code? class Son(object): def __init__(self, name): self.name = name def gN(self): return self.name def sE(self): return False class Ply(Son): def sE(self): return True mp = Son('1') print(mp.gN(), mp.sE()) mp = Ply('0') print(mp.gN(), mp.sE())

669. Correct output from the given options. def comF(x, y): if x > y: sm = y else: sm = x for i in range(1, sm+1): if((x % i == 0) and (y % i == 0)): cf = i return cf num1 = 84 num2 = 64 print(comF(num1, num2))

670. Output of the following Python code? List = [5, 12, 3, 4, 2, 16, 2, 2, 2, 11] print(sum(List)+List.count(2)+min(List)+max(List)+List.pop()) del List[0] del List[6] print(List.pop(0)+len(List)+List.index(2)+List.index(2,2))

671. Correct answer from the given options. List = [1. 2. 3. 1. 2. 1. 2. 3. 2. 1] print(sum(List)+List.count(1)+len(List)+List.index(2)+List.index(2.2))

672. Analyse the given Python language code and answer the question that follows. import collections fd = collections.defaultdict(lambda : '0') fdi'a'] = 1 fd['b‘] = 2 print (fd['a']+0) print (fd['c‘]) print (fd[‘b']+0) print (fd['d']) What will be the correct output of the above given code?

673. ln Python language, which of the following information is contained by a thread in the Thread Control Block (TCB)? 1. Stack pointer 2. Program counter 3. Thread state 4. Parent process Pointer

674. Output of the following Python code? def part1(n): y=1 For i in range(0. n): For j in range(0. H1): H1' Print(y) n = 5 part1(n)

675. hoose the correct answer from the given options. def vm(x. y): If x > y: greater = x else: greater = y while(True): if((greater 9-6 x == 0) and (greater % y == 0)): vm = greater break greater += 1 return vm numi = 64 num2 = 24 print(vm(num1. num2»

676. Whichoption does not contain duplicate elements?

677. Output of the following Python code? class St: stm = 'B' stm = 'A' def __init__(self, r): self.r = r a = St(101) b = St(102) print(a.stm) print(b.stm) print(a.r) print(St.stm)

678. Which port numbers is used for the FTP protocol in Python?

679. Which port numbers is used for theTelnet protocol in Python?

680. Which option is not a server socket method?

681. Output of the following Python language code? import bisect ct = [1, 3, 4, 4, 4, 6, 7] c2 = [1, 3, 4. 4, 4. 6. 7] c3 = [1. 3, 4. 4. 4. 6, 7] blsectlnsort(c1. 5) bisectinsort_left(c2, 5) bisectinsort_right(c3, 5. 0. 4) for l in range(O, 7): print(c3[i], end=' ')

682. Given shell expressions in Python 3.4.2 will give an error?

683. Output of the following function in Python 3.4 shell? float('1e-003')

684. Following exceptions is raised when the sequence subscript is out of range?

685. Output of the following Python code? class X(object): def __init__(self,a): self.num = a def dbup(self): self.num *= 2 class Y(X): def __init__(self,a): X.__init__(self, a) def tpup(self): self.num*= 3 obj = Y(4) print(obj.num*2/1) obj.dbup() print(obj.num*3/2) obj.tpup() print(obj.num/2*3)

686. Output of the following Python code? def abc(n): if n <= 1: return n else: return(abc(n-1) + abc(n-2)) print('1') nterms = 13 if nterms <= 0: print('0') else: for i in range(nterms): x=abc(i) print(x+11)

687. Choose the correct answer from the given options. class D: def __init__(self, l, c): self.l = l self.c = c def b(self): b = '1' * 2 return b if __name__ == '__main__': d = D(4, '0') b = d.b() print(b)

688. Output of the following Python code from the given options. class St: stm = 'Y' stm = 'X' def __init__(self, r): self.r = r def setdd(self, dd): self.dd = dd def getdd(self): return self.dd a = St(101) a.setdd('Y, UP') a.setdd('X') print(a.getdd()) '>m the given options.

class St:

689. This question is based on the graphic shown below. Choose the correct output of the given Python 3.4 code.

690. Output of the following Python code? def abc(): y = 2018 if (y % 4) == 0: if (y % 100) == 0: if (y % 400) == 0: print('0') else: print('1') else: print('0') else: print('1') abc()he following Python code?

def abc():

691. Output of the following Python code? lstx = range(1, 11) print(lstx) lst1_x5 = lstx[1 : 5] print (lst1_x5) lst5_x = lstx[5 : 8] print (lst5_x) lst1_y = lstx[1 : ] print (lst1_y) lst_x5 = lstx[: 5] print (lst_x5) lst1_8_2 = lstx[1 : 8 : 2] print (lst1_8_2) lst_rev = lstx[ : : -1] print (lst_rev) lst_rev_9_5_2 = lstx[9 : 4 : -2] print (lst_rev_9_5_2)

692. Find the output of Python code and choose the correct answer from the given options. m = 7 tor = 1 if m < 0: print('0') elif m == 0: print('1') else: for i in range(1,m + 1): tor = tor*i print(tor)

693. Analyse the given Python code and answer the question that follows. def att_d(fun): fun.data = 3 return fun @att_d def xyz (x. y): return x + y‘2 print(xyz(2, 23)) print(xyz.data) What will be the correct output of the above Python code?

694. Output of the following Python code? lst = [3, 1, 2, 5, 4, 3, 8] del lst[2 : 5] print (end='') for i in range(0, len(lst)): print(lst[i]+1, end=' ') print('\r') lst.pop(2) print (end='') for i in range(0, len(lst)): print(lst[i]+2, end=' ')

695. Output of the following Python code? def p_ft(x): for i in range(1, x + 1): if x % i == 0: d=6/2+i print(d+9) n = 42 p_ft(n)

696. Output of the following Python code? def hello(): print('0') return('1') def hello2(): print('0') hello() * 2 hello2()

697. Output of the following Python code? def recur_factorial(n): if n == 1: return 1 else: return n'recur_factorial(n-1) num = 4 if num < O: print('1') elif num = O: print('0') else: p=41+(recur_factorial(num)) p=P>>2 printlp)

698. Output of the following Python code? try: a=10 print (a-9) raise NameError('0') except NameError as e: print ('1') print (e) finally: print ('0')

699. This question is based on the graphic shown below. Output of the given Python code?

700. Which Python 3.4.2 shell expressions will produce the below-given output? 56.25

701. In relation to the socket low-level networking interface in Python, which of the following exceptions is raised for the address-related errors?

702. In Python 3.4.2, how many exception statements can you write in a 'try' block?

703. Output of the following line of code in Python 3.4.2? >>>print (0xD + 0xB + 0xC)

704. In Python 3.4, a conventional pluggable event loop model is provided by which library modules?

705. Output of the following function in Python 3.4.2 shell? float('-Infinity')

706. Output of the following Python code: try : a = 3 if a < 4 : b = a/(a-3) print (b) except(ZeroDivisionError, NameError): print ('1')

707. Output of the Python code given in the image?

708. The file formats created by the ‘dbm.ndbm’ module and the 'dbm.gnu' module are always compatible with each other.

709. ln Python 3.4.2, what will be the output of the code given in the image?

710. Output of the following Python code? from functools import ‘ def add(a, b, c): return 1000'a +10‘b + c add_part = partia|(add, c=2, b=1) print(add_part(3))

711. What will be the output of the Python code that is given in the image?

712. Output of the following Python code? n1 = 90 n2 =18 x=n1-n2 X: x >> 3 print(x)

713. What will be the correct output of the following Python language code? from datetime import date class Sn: def __init_(self. n. a): self.n = n self‌ia = a @classmethod def fBY(cl, n, y): return cl(n. 2018 - y+1) @staticmethod def sA(a): return a > 28 sn1 = Sn(

714. Otput of the following expression in Python 3.4 shell? '-6.34'.zfill(7)

715. Output of the following Python code? c = {'A':1, 'B':2} print(c.get('A')) print(c.get('C')) print(c.get('C'.'0'))

716. Which option is not a method of xmlparser objects?

717. Which expression in Python 3.4 will give an error?

718. Output of the following Python code : class Ba(object): pass class De(Ba): pass print(issubclass(De. Ba)) print(issubclass(Ba, De)) d = 090 b = 880 print(isinstance(b, De)) print(isinstanceld. 88))

719. Output of the following Python code? class Ba(object): def _init_(se|f, x): self‌ix = x+2 class De(Ba): def _init_(self. x. y): Bax = x‘2 self.y = y+2 def printXY(self): print(Ba.x+2, self.y‘2) d = De(10’2, 20+2) d.printXYO

720. Output of the following Python code? lis1 =[2. 1. 3, 5] lisZ = [6, 4, 3] lis1.extend[lis2) print (end=') for i in range(0, len(lis1)): print(end=' ') lisl.clear() print (end=') for i in range(2. len(lis1)): print(lisl[i]+1. end=' ')

721. Choose the correct output of the given Python code.

722. Output of the following Python code class Son: def __init_(self. n): self‌in = n print(self.n) def sayh(self): print(self.n) p = Son('0') p-sayho

723. Choose the correct output of the Python 3.4 code that is given in the image?

724. Output of the following Python language code? import threading def p_c(num): print('[}'.format(num ‘ num ‘ num)) def p_s(num): print('[}'.format(num ’ num)) if _name_ = '_main_': t1 = threading.Thread(target=p_s. args=l10.)) t2 = threading.Thread(target=p_c, args=(10,)) t1.start() t2.start0 11.join0 t2.join() prinl('1')

725. In relation to the socket() function in Python, which of the following constants represent the socket types? 1. SOCK_DGRAM 2. SOCK_RDM 3. SOCK_RAW 4. SOCK_SEQPACKET

726. Which modules are used with the FTP protocol in Python?

727. Which tuples are not used in the AF_INET6 address family?

728. In relation to the socket module in PythonoNetwork programming. which option is the correct parameters of the socket() function?

729. Which statement is correct?

730. This question is based on the graphic shown below. In the given image, which of the following line numbers in the Python code will result in a compilation error?

731. Which statement about Python 3.4.2 is/are false?

732. Which two interface objects cannot have child nodes?

733. Which option are the correct general socket methods?

734. Which two dictionary objects return '0' on success and '-1'on failure?

735. Python comes with ________ functions that have been already prewritten for the programmer.

736. The function header begins with the keyword ____ followed by the name of the function.

737. A loop controlled by the user is a type of ____ loop.

738. The process of ____ is used to create an object from a class.

739. To append data to an existing file, you open it with the ____________ method.

740. A condition is a ________ expression

741. The ________ design technique can be used to break down an algorithm into functions.

742. A series of nested if statements can also be called a ____ if statement.

743. A(n) ________ access file is also known as a direct access file.

744. All objects within a(n) _____ share common attributes and methods.

745. An example of an attribute of an object might be _______.

746. If the start index is ________ the end index, the slicing expression will return an empty string.

747. It is recommended that programmers avoid using ________ variables in a program whenever possible.

748. The _____ of a local variable is the function in which the variable is created

749. The purpose of the __________ is to get the first input value for the validation of a loop.

750. When a function is called by its name, then it is _____.

751. You usually use the for loop with ____ loops.

752. A variable's ________ is the part of a program in which the variable may be accessed.

753. The class ____ is the base of the classes designed to handle exceptions.

754. The starting value of an algorithm used to generate a range of numbers is called the _________.

755. What is an abstract class?

756. What happens when you use the build-in function any() on a list?

757. What data structure does a binary tree degenerate to if it isn't balanced properly?

758. What statement about static methods is true?

759. What are attributes?

760. What built-in list method would you use to remove items from a list?

761. What is one of the most common use of Python's sys library?

762. What is the runtime of accessing a value in a dictionary by using its key?

763. What is the correct syntax for defining a class called Game, if it inherits from a parent class called LogicGame?

764. What built-in Python data type is commonly used to represent a stack?

765. What is the purpose of the "self" keyword when defining or calling instance methods?

766. Which of these is NOT a characteristic of namedtuples?

767. What is an instance method?

768. Which statement does NOT describe the object-oriented programming concept of encapsulation?

769. What is the purpose of an if/else statement?

770. What built-in Python data type is best suited for implementing a queue?

771. What is the correct syntax for instantiating a new object of the type Game?

772. What does the built-in map() function do?

773. If you don't explicitly return a value from a function, what happens?

774. What is the purpose of the pass statement in Python?

775. What is the term used to describe items that may be passed into a function?

776. Which collection type is used to associate values with unique keys?

777. When does a for loop stop iterating?

778. Assuming the node is in a singly linked list, what is the runtime complexity of searching for a specific node within a singly linked list?

779. What happens when you use the built-in function all() on a list?

780. What is the algorithmic paradigm of quick sort?

781. What is runtime complexity of the list's built-in .append() method?

782. What is key difference between a set and a list?

783. What is the definition of abstraction as applied to object-oriented Python?

784. Suppose a Game class inherits from two parent classes: BoardGame and LogicGame. Which statement is true about the methods of an object instantiated from the Game class?

785. What does calling namedtuple on a collection type return?

786. What symbol(s) do you use to assess equality between two elements?

787. What value would be returned by this check for equality? 5 != 6

788. What does a class's __init__() method do?

789. What is meant by the phrase "space complexity"?

790. What is the correct syntax for creating a variable that is bound to a dictionary?

791. What is the purpose of the self keyword when defining or calling methods on an instance of an object?

792. What statement about the class methods is true?

793. What does it mean for a function to have linear runtime?

794. What is the proper way to define a function?

795. According to the PEP 8 coding style guidelines, how should constant values be named in Python?

796. Describe the functionality of a deque.

797. What is the correct syntax for creating a variable that is bound to a set?

798. Which of the following is TRUE About how numeric data would be organised in a binary Search tree?

799. Why would you use a decorator?

800. When would you use a for loop?

801. What would happen if you did not alter the state of the element that an algorithm is operating on recursively?

802. What is the runtime complexity of searching for an item in a binary search tree?

803. Why would you use mixin?

804. What is the runtime complexity of adding an item to a stack and removing an item from a stack?

805. Which statement accurately describes how items are added to and removed from a stack?

806. What is a base case in a recursive function?

807. Why is it considered good practice to open a file from within a Python script by using the with keyword?

808. Why would you use a virtual environment?

809. What is the correct way to run all the doctests in a given file from the command line?

810. What is a lambda function ?

811. What is the primary difference between lists and tuples?

812. What does a generator return?

813. What is the difference between class attributes and instance attributes?

814. What is the correct way to call a function?

815. How is comment created?

816. What will happen if you use a while loop and forget to include logic that eventually causes the while loop to stop?

817. Describe the functionality of a queue?

818. How does defaultdict work?

819. What is the correct syntax for adding a key called variety to the fruit_info dictionary that has a value of Red Delicious?

820. When would you use a while loop?

821. You encounter a FileNotFoundException while using just the filename in the open function. What might be the easiest solution?

822. What does the // operator in Python 3 allow you to do?

823. What file is imported to use dates in python?

824. What is the correct syntax for defining a class called Game?

825. What is the correct syntax for calling an instance method on a class named Game?

826. Which command will create a list from 10 down to 1? Example:10,9,8,7,6,5,4,3,2,1

827. Elements surrounded by [] are _, {} are _, and () are _.

828. Which syntax correctly creates a variable that is bound to a tuple?

829. Which mode is not a valid way to access a file from within a Python script?

830. NumPy allows you to multiply two arrays without a for loop. This is an example of _.

831. What built-in Python data type can be used as a hash table?

832. Which Python function allows you to execute Linux shell commands in Python?

833. When an array is large, NumPy will not print the entire array when given the built-in print function. What function can you use within NumPy to force it to print the entire array?

834. When would you use a try/except block in code?

835. In Python, how can the compiler identify the inner block of a for loop?

836. What Python mechanism is best suited for telling a user they are using a deprecated function

837. How do you add a comment to existing Python script?

838. What two functions within the NumPy library could you use to solve a system of linear equations?

839. What is the correct syntax for creating a vaiable that is bound to a list?

840. What are the two main data structures in the Pandas library?

841. Suppose you have a variale named vector of type np.array with 10,000 elements. How can you turn vector into a variable named matrix with dimensions 100x100?

842. Which choice is an immutable data type?

843. Choose the option below for which instance of the class cannot be created

844. Which choice is not a native numerical type in Python?

845. What will be the output of this code? [1,2,3] * 3

846. Given a list defined as numbers = [1,2,3,4], what is the value of numbers[-2]?

847. Which statement about strings in Python is true?

848. Declare k as integer set k = ______ while names[k] != zzz write names[k] set k = k + 1 end while