TechOnespot

 Chapter 3 :- PYTHON FUNDAMENTAL DEFINE THE TERMS 1. Constant :- A data item that never changes its value during a program run. 2. Identifier :- Name given by user for a part of the program. 3. Keyword :-  Reserved word having special meaning and purpose. 4. Lexical unit :- Other name of taken. 5. Literals :- Constant 6. Token :- The smallest individual unit in a program 7. String literal :- Sequence of characters enclosed in any type of quotes  8. Variable :- Named stored location whose value can be manipulated during program run. 9. Expression :- Legal combination of symbols and values that together represents a value. 1. What is the difference between a keyword and an identifier ? SOLUTION :-   Keyword is a special word that has a special meaning and purpose. Keywords are reserved and are a few. For example, if, elif, else etc. are keywords. Identifier is a user-defined name given to a part of a program viz. variable, object, function etc. Identifiers are not reserved. Th