[tahoe-lafs-trac-stream] [Tahoe-LAFS] #4158: SyntaxWarning: invalid escape sequence

[Tahoe-LAFS]

#4158: SyntaxWarning: invalid escape sequence
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     Reporter:  hacklschorsch  |      Owner:
         Type:  defect         |     Status:  new
     Priority:  normal         |  Milestone:  undecided
    Component:  unknown        |    Version:  n/a
   Resolution:                 |   Keywords:
Launchpad Bug:                 |
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Comment (by hacklschorsch):

 Some context from https://stackoverflow.com/a/77531416/1181063

 > Back in Python 3.6, using invalid escape sequences in string literals
 was deprecated (bpo-27364). Since then, attempting to use an invalid
 escape sequence has emitted a DeprecationWarning. This can often go
 unnoticed if you don't run Python with warnings enabled.
 DeprecationWarnings are silenced by default.
 >
 > Python 3.12 upgraded the DeprecationWarning to a SyntaxWarning.
 SyntaxWarnings are emitted by the compiler when the code is parsed, not
 when it's being run, so they cannot be ignored using a runtime warning
 filter. Unlike DeprecationWarnings, SyntaxWarnings are displayed by
 default, which is why you're seeing it now. This increase in visibility
 was intentional. In a future version of Python, using invalid escape
 sequences in string literals is planned to eventually become a hard
 SyntaxError.

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Ticket URL: <https://tahoe-lafs.org/trac/tahoe-lafs/ticket/4158#comment:1>
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