SyntaxWarning: invalid escape sequence '\.'

[jrom99]

This line raises the following warning for python3.12:

pypandoc/pandoc_download.py:61: SyntaxWarning: invalid escape sequence '\.'

The line in question:

pypandoc/pypandoc/pandoc_download.py

Line 61 in 23f6f09

regex = re.compile(r"/jgm/pandoc/releases/download/.*(?:"+processor_architecture+"|x86|mac).*\\.(?:msi|deb|pkg)")

This could be solved by turning the second string into a raw string:

 regex = re.compile(r"/jgm/pandoc/releases/download/.*(?:"+processor_architecture+r"|x86|mac).*\.(?:msi|deb|pkg)") 

or just using using a raw f-string:

 regex = re.compile(fr"/jgm/pandoc/releases/download/.*(?:{processor_architecture}|x86|mac).*\.(?:msi|deb|pkg)") 

[lesinigo]

We get it under python3.11 too but only under CI (pytest in alpine3.19 with python3.11) and I've not yet been able to reproduce it locally. The resulting container build with the same source code under the same python3.11 in the same alpine3.19 seems unaffected.

[JessicaTegner]

I'll be able to get to it in a little while, otherwise, someone is welcome to open a quick pr for it.
SIdenote: raw f strings seems cool, didn't know they were a thing, especially not a thing so far back, compatibility wise.