Re: python39 fails to build (setuptools)

[Tobias Nygren <tnn%NetBSD.org@localhost>]

On Mon, 10 Jan 2022 15:07:12 -0500
Greg Troxel <gdt%lexort.com@localhost> wrote:

> >>   File "/tmp/work/lang/python39/work/Python-3.9.9/Lib/zipfile.py", line 6, in <module>
> >>     import binascii
> >> ModuleNotFoundError: No module named 'binascii'
> >
> > Do you have the environment variable PYTHONHOME or PYTHONPATH set?
> 
> Great question; I didn't think of that.   But no, I do not.

Not really sure what recent change caused this behaviour to emerge.
But I created this workaround.
Is this change OK? I don't really have much python clue.

RCS file: /cvsroot/pkgsrc/lang/python39/patches/patch-setup.py,v
retrieving revision 1.5
diff -p -u -r1.5 patch-setup.py
--- patches/patch-setup.py	6 Nov 2021 12:24:35 -0000	1.5
+++ patches/patch-setup.py	10 Jan 2022 21:20:27 -0000
@@ -5,9 +5,17 @@ Do not look for ncursesw.
 Assume panel_library is correct; this is a fix for ncurses' gnupanel
 which will get transformed to panel in buildlink.
 
---- setup.py.orig	2021-11-05 19:21:41.000000000 +0000
+--- setup.py.orig	2021-11-15 17:43:00.000000000 +0000
 +++ setup.py
-@@ -30,7 +30,7 @@ except ImportError:
+@@ -11,6 +11,7 @@ import sysconfig
+ from glob import glob, escape
+ import _osx_support
+ 
++sys.path = [p for p in sys.path if not re.compile('^' + sys.base_prefix).match(p)]
+ 
+ try:
+     import subprocess
+@@ -30,7 +31,7 @@ except ImportError:
      SUBPROCESS_BOOTSTRAP = True
  
(rest of patch context omitted, apply it manually ...)