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Python 3.12 - SyntaxWarning: invalid escape sequence #188

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joshkersey opened this issue May 6, 2024 · 2 comments · May be fixed by #189
Open

Python 3.12 - SyntaxWarning: invalid escape sequence #188

joshkersey opened this issue May 6, 2024 · 2 comments · May be fixed by #189
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@garg-mudit

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@joshkersey
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When running in Python 3.12 we see SyntaxWarning being raised for a couple regex strings:

/opt/venv/lib/python3.12/site-packages/docusign_esign/client/api_client.py:280: SyntaxWarning: invalid escape sequence '\['
  sub_kls = re.match('list\[(.*)\]', klass).group(1)
/opt/venv/lib/python3.12/site-packages/docusign_esign/client/api_client.py:285: SyntaxWarning: invalid escape sequence '\('
  sub_kls = re.match('dict\(([^,]*), (.*)\)', klass).group(2)

It's my understanding this can be fixed either by either escaping the backslashes (re.match('list\\[(.*)\\]', klass).group(1)) or by using a raw string literal (re.match(r'list\[(.*)\]', klass).group(1).
@karankaushik95
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Hi @joshkersey Thanks for notifying us! Do you receive this when running something in particular or is this something you're able to reproduce all the time?

@Lucianod28 Lucianod28 linked a pull request May 11, 2024 that will close this issue
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@Lucianod28
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Hi @joshkersey Thanks for notifying us! Do you receive this when running something in particular or is this something you're able to reproduce all the time?

This happens when the library is imported. It's documented here:

Changed in version 3.12: Unrecognized escape sequences produce a SyntaxWarning. In a future Python version they will be eventually a SyntaxError.

I fixed it in #189.

@garg-mudit garg-mudit self-assigned this May 17, 2024
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Use raw strings for regex Lucianod28/docusign-esign-python-client
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@joshkersey @karankaushik95 @Lucianod28 @garg-mudit