Page 90 - KEC Khaitan C8.5 Flipbook
P. 90

TOKENS AND DATA                                                                        CHAPTER


                  TYPES IN PYTHON                                                                       B1

















                     Topics Covered


                     The student will be able to:
                        recognise Python's character set and tokens.
                        work with different data types and arithmetic operators.
                        identify and fix common Python errors.






                            PYTHON CHARACTER SET

                  A set of valid characters recognised by a language is called a character set. The characters used
                  in the Python source program belong to the Unicode standard. The characters in Python are
                  grouped into the following categories:

                     Alphabet:  A to Z (uppercase), a to z (lowercase)
                     Digits: 0 to 9

                     Special characters (:) colon ( ) + _- * / /\ ^ & % # $ {} []! _(underscore) >< ?@ , ; etc. (white space,
                    blank space, horizontal tab ( ), carriage return, new line, form feed)
                  Python can process any of the ASCII and Unicode characters as data or as literals.



                            PYTHON TOKENS

                  A token is the smallest element of a Python program that is meaningful to the interpreter. You
                  have learned about some tokens in the previous class. Now learn more about them in detail.



                                                           PYTHON TOKENS






                    IDENTIFIERS         KEYWORDS            CONSTANTS           OPERATORS           PUNCTUATORS





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