Python Variables and Operators: Points to remember

Points to remember:

·        Python is a general purpose programming language created by Guido Van Rossum.

·        Python shell can be used in two ways, viz., Interactive mode and Script mode.

·        Python uses whitespace (spaces and tabs) to define program blocks

·        Whitespace separation is necessary between tokens, identifiers or keywords.

·        A Program needs to interact with end user to accomplish the desired task, this is done using Input-Output facility.

·        Python breaks each logical line into a sequence of elementary lexical components known as Tokens.

·        Keywords are special words that are used by Python interpreter to recognize the structure of program.