Hey Harish,
Python automatically concatenates strings constants so this is
actually '' then r'' which is the empty string followed by a 'raw' empty
string. See here,
http://docs.python.org/tutorial/introduction.html#strings. ''u'' and
''b'' will work for the same reason.
- Chris
Harish Vishwanath wrote:
Hello,
I accidentally did this in the shell.
>> ''r''
''
>> ''r'' == ''
True
>> ''r'' == ""
True
That is <singlequote singlequote r singlequote singlequote>. However if
I try ->
>> ''c''
File "<stdin>", line 1
''c''
^
SyntaxError: invalid syntax
>> ''z''
File "<stdin>", line 1
''z''
^
SyntaxError: invalid syntax
Any other character that way is Invalid Syntax. What is so special about
character r enclose within a pair of single quotes?
Regards,
Harish
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