35 lines
1.1 KiB
Python
35 lines
1.1 KiB
Python
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import sys
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from functools import partial
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def find_entrypoints(group_name: str):
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"""
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Find entrypoints of a given group using either `importlib.metadata` or the
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older `pkg_resources` mechanism.
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Yields tuples of the entrypoint name and a callable function that will
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load the actual entrypoint.
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"""
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if sys.version_info >= (3, 10):
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# "Changed in version 3.10: importlib.metadata is no longer provisional."
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try:
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from importlib.metadata import entry_points
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except ImportError:
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pass
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else:
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eps = entry_points(group=group_name)
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# Only do this if this implementation of `importlib.metadata` is
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# modern enough to not return a dict.
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if not isinstance(eps, dict):
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for entry_point in eps:
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yield (entry_point.name, entry_point.load)
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return
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try:
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from pkg_resources import working_set
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except ImportError:
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pass
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else:
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for entry_point in working_set.iter_entry_points(group_name):
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yield (entry_point.name, partial(entry_point.load, require=True))
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