# mako/compat.py
# Copyright 2006-2025 the Mako authors and contributors <see AUTHORS file>
#
# This module is part of Mako and is released under
# the MIT License: http://www.opensource.org/licenses/mit-license.php
import collections
from importlib
import metadata
as importlib_metadata
from importlib
import util
import inspect
import sys
win32 = sys.platform.startswith(
"win")
pypy = hasattr(sys,
"pypy_version_info")
ArgSpec = collections.namedtuple(
"ArgSpec", [
"args",
"varargs",
"keywords",
"defaults"]
)
def inspect_getargspec(func):
"""getargspec based on fully vendored getfullargspec from Python 3.3."""
if inspect.ismethod(func):
func = func.__func__
if not inspect.isfunction(func):
raise TypeError(f
"{func!r} is not a Python function")
co = func.__code__
if not inspect.iscode(co):
raise TypeError(f
"{co!r} is not a code object")
nargs = co.co_argcount
names = co.co_varnames
nkwargs = co.co_kwonlyargcount
args = list(names[:nargs])
nargs += nkwargs
varargs =
None
if co.co_flags & inspect.CO_VARARGS:
varargs = co.co_varnames[nargs]
nargs = nargs +
1
varkw =
None
if co.co_flags & inspect.CO_VARKEYWORDS:
varkw = co.co_varnames[nargs]
return ArgSpec(args, varargs, varkw, func.__defaults__)
def load_module(module_id, path):
spec = util.spec_from_file_location(module_id, path)
module = util.module_from_spec(spec)
spec.loader.exec_module(module)
return module
def exception_as():
return sys.exc_info()[
1]
def exception_name(exc):
return exc.__class__.__name__
def importlib_metadata_get(group):
ep = importlib_metadata.entry_points()
if hasattr(ep,
"select"):
return ep.select(group=group)
else:
return ep.get(group, ())