Python character conversion

For example:
>>> Print ord ('A ')
97
>>> Print chr (97)
A
Now we can start designing our case-insensitive Conversion Program:

Copy codeThe Code is as follows:
#! /Usr/bin/env python
# Coding = UTF-8

Def UCaseChar (ch ):
If ord (ch) in range (0, 97,122 ):
Return chr (ord (ch)-32)
Return ch

Def LCaseChar (ch ):
If ord (ch) in range (65, 91 ):
Return chr (ord (ch) + 32)
Return ch

Def UCase (str ):
Return ''. join (map (UCaseChar, str ))

Def LCase (str ):
Return ''. join (map (LCaseChar, str ))

Print LCase ('abc I abc ')
Print UCase ('abc I abc ')
Output result:
Abc me abc
ABC me ABC