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?

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?

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

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

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

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

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

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'?

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]?

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

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