IOError Errno 22 invalid mode r or filename c Python27 test txt

Question

What is wrong with the following   test file open  c   Python27 test txt   r

User · Answer

t in a string marks an escape sequence for a tab character  For a literal    use

User · Answer

is an escape character in Python   t gets interpreted as a tab  If you need   character in a string  you have to use      Your code should be  test file open  c   Python27  test txt   r

User · Answer

always use  r  to get a raw string when you want to avoid escape   test file open r c  Python27 test txt   r

User · Answer

t is a tab character  Use a raw string instead   test file open r c  Python27 test txt   r     or double the slashes   test file open  c   Python27  test txt   r     or use forward slashes instead   test file open  c  Python27 test txt   r

[python] IOError: [Errno 22] invalid mode ('r') or filename: 'c:\\Python27\test.txt'

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