How often is the value of y initialized in the following class? >>> class X(): >>> def x(self,y = []): >>> return y

In Python 2.7 the Counter object acts most like a:

When resolving a name to an object in a function, which of these is not a scope considered?

Given a list: lst = ['alpha', 'beta', '', 'gamma']. What will be returned by the function: filter(None, lst)?

Which built-in identifiers may not be assigned to (as of Python 2.4)?

What is the result of the expression: print [k(1) for k in [lambda x: x + p for p in range(3)]]?

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?

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

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?

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

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