A variable: contents assigned to the input variables, i.e., variable = input content
n1 = input ( 'Enter Username:')
two,
Variable names may be - in English,
- Numbers, numbers do not begin with
- underscores, but can not begin with an underscore
It can not be the keyword 'and', 'as', ' assert ',' break ',' class', 'continue', 'def', 'del', 'elif', 'else', 'except', 'exec ',' finally ',' for ',' from ',' global ',' if ',' import ',' in ',' is', 'lambda', 'not', 'or', 'pass', 'print', 'raise', 'return', 'try', 'while', 'with', 'yield'
best not to repeat things and built-in python, Pycharm programming ***