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Articles by Malhar Lathkar
Page 3 of 3
What does 'in' operator do in Python?
In Python, in and not in operators are called membership operators. Their purpose is to check if an object is a member of a certain sequence object like string, list, or tuple. The in operator returns true if object is present in sequence, false if not found>>> 'p' in 'Tutorialspoint' True >>> 'c' in 'Tutorialspoint' False >>> 10 in range(0,5) False
Read MoreHow to convert an object x to a string representation in Python?
Most commonly used str() function from Python library returns a string representation of object.>>> no=100 >>> str(no) '100' >>> L1=[1,2,3,4] >>> str(L1) '[1, 2, 3, 4]' >>> d={'a': 1, 'b': 2, 'c': 3, 'd': 4} >>> str(d) "{'a': 1, 'b': 2, 'c': 3, 'd': 4}"However, repr() returns a default and unambiguous representation of the object, where as str() gives an informal representation that may be readable but may not be always unambiguous.>>> str(d) "{'a': 1, 'b': 2, 'c': 3, 'd': 4}" >>> repr(d) "{'a': 1, 'b': 2, 'c': 3, 'd': 4}" >>> repr(L1) '[1, 2, 3, 4]' >>> repr(no) '100'
Read MoreWhat is the difference between the != and <> operators in Python?
In Python 2.x, both != and operators are available to check if two operands are not equal. Both return true if operands are not equal and false if they are equal.In Python 3.x, operator has been deprecated.
Read MoreHow to exit from a Python if clause?
It is not possible to exit from an if block of Python code. The break keyword does appear in if block but it has to inside a loop. It is however possible to exit from entire program from inside if block by sys.exit()
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