Sunday, December 15, 2019

Python Escape characters

In string literals we can use escape characters  to associate a special meaning 

>>> s=“demo\ndemob”
>>> print(s)
demo
demob
>>> s=“demo\ndemob”
>>> print(s)
demo demob
>>> s=“This is “symbol”
  File “<stdin>”, line 1 
     s=“This is “ symbol”
                       ^
SyntaxError: invalid syntax 
>>> s=“This is \” symbol”
>>> print(s)
This is “ symbol

The following are various important escape characters in python 

\n —> New line 
\t —> horizontal tab
\r —> carriage return 
\b —> back space
\f —> form feed 
\v —> vertical tab 
\’ —> single quote 
\” —> double quote
\\ —> back slash symbol 

Constants 

Constants concept is not applicable in python 
But it is convention to use only uppercase characters if we don’t want to change value 
MAX_VALUE = 10
It is just convention but we can change the value.


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