Build error - 'unicodeescape' codec can't decode bytes

[vielfarbig]

Hello,

if I try to build it with python setup.py install, it gives the error:

  File "build/bdist.linux-x86_64/egg/nx2tikz/nx2tikz.py", line 67
    '\documentclass{{standalone}}\n'
    ^
SyntaxError: (unicode error) 'unicodeescape' codec can't decode bytes in position 0-1: truncated \uXXXX escape

I tried with python3.8.10 and old python3.2 (7 years old, roughly the time you uploaded it), but both does not work

Regards