2.10PYTHON TOKENS

1.Keywords

2.Identifiers

3.Literals

4.String

5.Numeric

6.Collection literals

7.List Literals

8.Tuples

FIGURE 2.1 The relationship between tokens and other entities

Keywords

These are the dedicated words that have special meaning and functions. The compiler defines these words. It does not allow users to use these words.

Identifiers:

Identifiers represent the programmable entities. The programmable entities include user-defined names, variables, modules, and other objects. Moreover, Python has some rules for defining the identifiers. For example, an identifier can be a sequence of lowercase letters, uppercase letters, integers, or a combination of any of those. The identifier name should start with a lower case or upper case letter (it must not start with digits).The identifier name should not be a reserved word. Only the underscore (_) can be used as a special character in identifier names. The length of the identifier name should not be more than 79 characters...