Require Python >= 3.10 (broken on older versions) #1914
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BinderHub is broken on Python 3.8:
```
Traceback (most recent call last):
File "/opt/hostedtoolcache/Python/3.8.18/x64/lib/python3.8/runpy.py", line 194, in _run_module_as_main
return _run_code(code, main_globals, None,
File "/opt/hostedtoolcache/Python/3.8.18/x64/lib/python3.8/runpy.py", line 87, in _run_code
exec(code, run_globals)
File "/home/runner/work/binderhub/binderhub/binderhub/__main__.py", line 2, in <module>
from binderhub.app import main
File "/home/runner/work/binderhub/binderhub/binderhub/app.py", line 45, in <module>
from .base import VersionHandler
File "/home/runner/work/binderhub/binderhub/binderhub/base.py", line 13, in <module>
from .utils import ip_in_networks
File "/home/runner/work/binderhub/binderhub/binderhub/utils.py", line 172, in <module>
ip_addr: str, networks: Iterable[ipaddress.IPv4Network | ipaddress.IPv6Network]
```
BinderHub is broken on Python 3.9:
```
Traceback (most recent call last):
File "/opt/hostedtoolcache/Python/3.9.21/x64/lib/python3.9/runpy.py", line 197, in _run_module_as_main
return _run_code(code, main_globals, None,
File "/opt/hostedtoolcache/Python/3.9.21/x64/lib/python3.9/runpy.py", line 87, in _run_code
exec(code, run_globals)
File "/home/runner/work/binderhub/binderhub/binderhub/__main__.py", line 2, in <module>
from binderhub.app import main
File "/home/runner/work/binderhub/binderhub/binderhub/app.py", line 45, in <module>
from .base import VersionHandler
File "/home/runner/work/binderhub/binderhub/binderhub/base.py", line 13, in <module>
from .utils import ip_in_networks
File "/home/runner/work/binderhub/binderhub/binderhub/utils.py", line 172, in <module>
ip_addr: str, networks: Iterable[ipaddress.IPv4Network | ipaddress.IPv6Network]
```
consideRatio
approved these changes
Jan 25, 2025
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The BinderHub Python metadata claims to support Python 3.8, but this isn't tested, and the code base now contains some syntax that requires Python 3.10.
The alternative to bumping the minimum version is to ensure the code is compatible with 3.8 (or 3.9).