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77 lines
1.9 KiB
77 lines
1.9 KiB
1 year ago
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# mako/compat.py
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# Copyright 2006-2022 the Mako authors and contributors <see AUTHORS file>
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#
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# This module is part of Mako and is released under
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# the MIT License: http://www.opensource.org/licenses/mit-license.php
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import collections
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from importlib import util
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import inspect
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import sys
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win32 = sys.platform.startswith("win")
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pypy = hasattr(sys, "pypy_version_info")
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py38 = sys.version_info >= (3, 8)
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ArgSpec = collections.namedtuple(
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"ArgSpec", ["args", "varargs", "keywords", "defaults"]
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)
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def inspect_getargspec(func):
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"""getargspec based on fully vendored getfullargspec from Python 3.3."""
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if inspect.ismethod(func):
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func = func.__func__
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if not inspect.isfunction(func):
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raise TypeError(f"{func!r} is not a Python function")
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co = func.__code__
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if not inspect.iscode(co):
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raise TypeError(f"{co!r} is not a code object")
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nargs = co.co_argcount
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names = co.co_varnames
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nkwargs = co.co_kwonlyargcount
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args = list(names[:nargs])
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nargs += nkwargs
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varargs = None
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if co.co_flags & inspect.CO_VARARGS:
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varargs = co.co_varnames[nargs]
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nargs = nargs + 1
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varkw = None
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if co.co_flags & inspect.CO_VARKEYWORDS:
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varkw = co.co_varnames[nargs]
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return ArgSpec(args, varargs, varkw, func.__defaults__)
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def load_module(module_id, path):
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spec = util.spec_from_file_location(module_id, path)
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module = util.module_from_spec(spec)
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spec.loader.exec_module(module)
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return module
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def exception_as():
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return sys.exc_info()[1]
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def exception_name(exc):
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return exc.__class__.__name__
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if py38:
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from importlib import metadata as importlib_metadata
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else:
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import importlib_metadata # noqa
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def importlib_metadata_get(group):
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ep = importlib_metadata.entry_points()
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if hasattr(ep, "select"):
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return ep.select(group=group)
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else:
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return ep.get(group, ())
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