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Re: pkg/56785: Python 3.9 build fails with pkgsrc-2022Q1 on Linux

Following are sys.base_prefix and sys.path under my build environment.

sys.path:['/var/pkg/work/lang/python39/work/Python-3.9.12', '/var/pkg/lib/', '/var/pkg/work/lang/python39/work/Python-3.9.12/Lib', '/var/pkg/work/lang/python39/work/Python-3.9.12/build/lib.linux-x86_64-3.9', '/var/pkg/lib/python3.9/site-packages']

My PREFIX is /var/pkg and WRKOBJDIR is /var/pkg/work.
The patched operation "sys.path = [p for p..." removes all the sys.path members.

It seems that the patched operation should keep paths under WRKOBJDIR in sys.path.
When I disabled WRKOBJDIR setting, the build finished without problem.

Best regards,


2022年4月21日(木) 11:55 David Holland <>:
The following reply was made to PR pkg/56785; it has been noted by GNATS.

From: David Holland <>
Subject: Re: pkg/56785: Python 3.9 build fails with pkgsrc-2022Q1 on Linux
Date: Thu, 21 Apr 2022 02:50:06 +0000

 On Sun, Apr 10, 2022 at 12:35:00AM +0000, wrote:
  > I found commenting out the following line from patch/patch-setup is effective in completing the build.
  > +sys.path = [p for p in sys.path if not re.compile('^' + sys.base_prefix + '/').match(p)]
  > Under my environment, this line makes the sys.path an empty list.
  > Moreover, it worked fine if I change "if not" to "if".

 What's in sys.base_prefix? Sounds like it's got some characters in it
 that make Python think it's an invalid regexp.

 There should probably be some kind of quoting operation on there to
 protect it.

 David A. Holland

Yosuke Kawasaki

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