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?? Editing: _check_module.py

"""
Utility for locating a module (or package's __main__.py) with a given name
and verifying it contains the PYTHON_ARGCOMPLETE_OK marker.

The module name should be specified in a form usable with `python -m`.

Intended to be invoked by argcomplete's global completion function.
"""

import os
import sys
import tokenize

try:
    from importlib.util import find_spec  # type:ignore
except ImportError:
    import typing as t
    from collections import namedtuple
    from imp import find_module  # type:ignore

ModuleSpec = namedtuple("ModuleSpec", ["origin", "has_location", "submodule_search_locations"])

def find_spec(  # type:ignore
        name: str,
        package: t.Optional[str] = None,
    ) -> t.Optional[ModuleSpec]:
        """Minimal implementation as required by `find`."""
        try:
            f, path, _ = find_module(name)
        except ImportError:
            return None
        has_location = path is not None
        if f is None:
            return ModuleSpec(None, has_location, [path])
        f.close()
        return ModuleSpec(path, has_location, None)

class ArgcompleteMarkerNotFound(RuntimeError):
    pass

def find(name, return_package=False):
    names = name.split(".")
    spec = find_spec(names[0])
    if spec is None:
        raise ArgcompleteMarkerNotFound('no module named "{}"'.format(names[0]))
    if not spec.has_location:
        raise ArgcompleteMarkerNotFound("cannot locate file")
    if spec.submodule_search_locations is None:
        if len(names) != 1:
            raise ArgcompleteMarkerNotFound("{} is not a package".format(names[0]))
        return spec.origin
    if len(spec.submodule_search_locations) != 1:
        raise ArgcompleteMarkerNotFound("expecting one search location")
    path = os.path.join(spec.submodule_search_locations[0], *names[1:])
    if os.path.isdir(path):
        filename = "__main__.py"
        if return_package:
            filename = "__init__.py"
        return os.path.join(path, filename)
    else:
        return path + ".py"

def main():
    try:
        name = sys.argv[1]
    except IndexError:
        raise ArgcompleteMarkerNotFound("missing argument on the command line")

filename = find(name)

try:
        fp = tokenize.open(filename)
    except OSError:
        raise ArgcompleteMarkerNotFound("cannot open file")

with fp:
        head = fp.read(1024)

if "PYTHON_ARGCOMPLETE_OK" not in head:
        raise ArgcompleteMarkerNotFound("marker not found")

if __name__ == "__main__":
    try:
        main()
    except ArgcompleteMarkerNotFound as e:
        sys.exit(str(e))

Path:

opt / gsutil / third_party / argcomplete / argcomplete /

?? Editing: _check_module.py

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