modutils.py 文件源码

def _file_from_modpath(modpath, path=None, context=None):
    """given a mod path (i.e. splitted module / package name), return the
    corresponding file

    this function is used internally, see `file_from_modpath`'s
    documentation for more information
    """
    assert len(modpath) > 0
    if context is not None:
        try:
            mtype, mp_filename = _module_file(modpath, [context])
        except ImportError:
            mtype, mp_filename = _module_file(modpath, path)
    else:
        mtype, mp_filename = _module_file(modpath, path)
    if mtype == PY_COMPILED:
        try:
            return get_source_file(mp_filename)
        except NoSourceFile:
            return mp_filename
    elif mtype == C_BUILTIN:
        # integrated builtin module
        return None
    elif mtype == PKG_DIRECTORY:
        mp_filename = _has_init(mp_filename)
    return mp_filename