Deprecation warning due to invalid escape sequences.

[tirkarthi]

Deprecation warning due to invalid escape sequences. Using raw strings or escaping them again helps in resolving this. Check https://github.com/asottile/pyupgrade/ for automatic fix of this.

./tests/notebooks/mirror/ipynb_to_script_vim_folding_markers/Line_breaks_in_LateX_305.py:32: DeprecationWarning: invalid escape sequence \d
  '''
./tests/notebooks/mirror/ipynb_to_script_vscode_folding_markers/Line_breaks_in_LateX_305.py:32: DeprecationWarning: invalid escape sequence \d
  '''
./tests/notebooks/mirror/ipynb_to_sphinx/Line_breaks_in_LateX_305.py:9: DeprecationWarning: invalid escape sequence \d
  """
./tests/notebooks/mirror/ipynb_to_sphinx/Line_breaks_in_LateX_305.py:32: DeprecationWarning: invalid escape sequence \d
  '''
./tests/notebooks/mirror/ipynb_to_percent/Line_breaks_in_LateX_305.py:32: DeprecationWarning: invalid escape sequence \d
  '''
./tests/notebooks/mirror/ipynb_to_hydrogen/Line_breaks_in_LateX_305.py:32: DeprecationWarning: invalid escape sequence \d
  '''
./tests/notebooks/mirror/ipynb_to_script/Line_breaks_in_LateX_305.py:30: DeprecationWarning: invalid escape sequence \d
  '''

[mwouts]

Hello @tirkarthi , thanks for pointing this out. Well, the files that you are looking at are representations of this notebook that contains $\LaTeX$ formulas.

Would you expect Jupytext to translate the original string that does contains inputs like "\d" (unescaped backslash), into "\\d" (escaped backslash), and then back to "\d"? Do you know how to do that programmatically? Thanks!

[mwouts]

A fraction of this issue was addressed with #836, but I see that some non-raw string remains at e.g. https://github.com/mwouts/jupytext/blob/main/tests/notebooks/mirror/ipynb_to_script_vim_folding_markers/Line_breaks_in_LateX_305.py

I'll have a look when time permits.