bug#52150: childsplay: ImportError

[Christopher Howard <christopher@librehacker.com>]

Hi, after running guix pull today, I tried to run childsplay (using guix
shell) but get an error:

```
christopher@nightshade ~ [env]$ childsplay 
No binary
['/gnu/store/2bkbpnd9jbgmnvd7vy9mdprdn2r0klcj-childsplay-
3.4/share/childsplay/childsplay.py']
pygame 1.9.4
Hello from the pygame community. https://www.pygame.org/contribute.html
Traceback (most recent call last):
  File "/gnu/store/2bkbpnd9jbgmnvd7vy9mdprdn2r0klcj-childsplay-
3.4/share/childsplay/childsplay.py", line 41, in <module>
    from SPOptionParser import OParser
  File "/gnu/store/2bkbpnd9jbgmnvd7vy9mdprdn2r0klcj-childsplay-
3.4/share/childsplay/SPOptionParser.py", line 25, in <module>
    from SPVersion import optversion
  File "/gnu/store/2bkbpnd9jbgmnvd7vy9mdprdn2r0klcj-childsplay-
3.4/share/childsplay/SPVersion.py", line 3, in <module>
    import sqlalchemy as sqla
  File "/gnu/store/y2v3bhqn6c7xi1cxznvl0lhqcy0zykx5-python2-sqlalchemy-
1.4.27/lib/python2.7/site-packages/sqlalchemy/__init__.py", line 8, in
<module>
    from . import util as _util
  File "/gnu/store/y2v3bhqn6c7xi1cxznvl0lhqcy0zykx5-python2-sqlalchemy-
1.4.27/lib/python2.7/site-packages/sqlalchemy/util/__init__.py", line
14, in <module>
    from ._collections import coerce_generator_arg
  File "/gnu/store/y2v3bhqn6c7xi1cxznvl0lhqcy0zykx5-python2-sqlalchemy-
1.4.27/lib/python2.7/site-packages/sqlalchemy/util/_collections.py",
line 16, in <module>
    from .compat import binary_types
  File "/gnu/store/y2v3bhqn6c7xi1cxznvl0lhqcy0zykx5-python2-sqlalchemy-
1.4.27/lib/python2.7/site-packages/sqlalchemy/util/compat.py", line 115,
in <module>
    import importlib_metadata  # noqa
ImportError: No module named importlib_metadata
```

Information about my system:

```
christopher@nightshade ~ [env]$ neofetch --stdout
christopher@nightshade 
---------------------- 
OS: Guix System ea50a475114f6107e9f5c5d1193f3137d7a1e818 x86_64 
Host: GA-880GM-UD2H 
Kernel: 5.14.16-gnu 
Uptime: 13 days, 23 hours, 12 mins 
Packages: 63 (guix-system), 157 (guix-user) 
Shell: bash 5.0.16 
Resolution: 1920x1200 
DE: GNOME 3.34.5 
Theme: Adwaita [GTK2/3] 
Icons: Adwaita [GTK2/3] 
Terminal: guix 
CPU: AMD Athlon II X3 455 (3) @ 3.300GHz 
GPU: NVIDIA GeForce 8400 GS Rev. 3 
Memory: 1996MiB / 7893MiB 

christopher@nightshade ~ [env]$ guix shell --check
guix shell: warning: no packages specified; creating an empty
environment
guix shell: warning: no packages specified; creating an empty
environment
guix shell: checking the environment variables visible from shell
'/gnu/store/87kif0bpf0anwbsaw0jvg8fyciw4sz67-bash-5.0.16/bin/bash'...
guix shell: All is good!  The shell gets correct environment variables.
```

-- 
Christopher Howard
Gemini capsule: gemini://gem.librehacker.com
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