fix[BrainScaleS]: support build of genpybind w/ Python@3.10:

@andreasmueller reported this build problem when building on Python@3.10:

--------------------------------------------------------------------------
Checking clang resource dir
/p/usersoftware/swmanage/mueller2/install/linux-rocky8-zen2/gcc-11.3.0/llvm-11.1.0-kncecubytwtxftu74cw4az6pp66irwhv/lib/clang/11.1.0
from /p/usersoftware/swmanage/mueller2/spack/user-cache/mueller2/spack-stage/spack-stage-pynn-brainscales-6.0-rc1-w5a25s47gujasxjkxaezpnbrgc7tpobx/spack-src/libnux/pylibnux: Check for --genpybind-output-files failed with: Traceback (most recent call last):
  File "/p/usersoftware/swmanage/mueller2/install/linux-rocky8-zen2/gcc-11.3.0/genpybind-ebrains-l7am2xvqahzslel3oi35ebsmdsvub7ib/bin/genpybind", line 4, in <module>
    from genpybind.tool import main; main()
  File "/p/usersoftware/swmanage/mueller2/install/linux-rocky8-zen2/gcc-11.3.0/genpybind-ebrains-l7am2xvqahzslel3oi35ebsmdsvub7ib/lib/python3.10/site-packages/genpybind/tool.py", line 13, in <module>
    from .decls import gather_declarations
  File "/p/usersoftware/swmanage/mueller2/install/linux-rocky8-zen2/gcc-11.3.0/genpybind-ebrains-l7am2xvqahzslel3oi35ebsmdsvub7ib/lib/python3.10/site-packages/genpybind/decls/__init__.py", line 9, in <module>
    from .klasses import Klass
  File "/p/usersoftware/swmanage/mueller2/install/linux-rocky8-zen2/gcc-11.3.0/genpybind-ebrains-l7am2xvqahzslel3oi35ebsmdsvub7ib/lib/python3.10/site-packages/genpybind/decls/klasses.py", line 7, in <module>
    from ..registry import RE_NON_IDENTIFIER
  File "/p/usersoftware/swmanage/mueller2/install/linux-rocky8-zen2/gcc-11.3.0/genpybind-ebrains-l7am2xvqahzslel3oi35ebsmdsvub7ib/lib/python3.10/site-packages/genpybind/registry.py", line 19, in <module>
    class Registry(collections.Mapping):
AttributeError: module 'collections' has no attribute 'Mapping'

NOTE: confcache is enabled, make sure you supply --disable-confcache to configure from scratch!

→ collections.Mapping has been moved to collections.abc.Mapping since ages…

This MR adds a patch which (might) fix[es] it before we have a new genpybind release.

added 1 commit

• 8ee74bc8 - fix[BrainScaleS]: support build of genpybind w/ Python@3.10:

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marked this merge request as ready

mentioned in commit affede1e

merged

mentioned in commit bb2012d8

mentioned in commit 7bc77b02