Function getsourcefile

Lib/inspect.py:882–908

Return the filename that can be used to locate an object's source. Return None if no way can be identified to get the source.

(object)

    return None

def getsourcefile(object):
    """Return the filename that can be used to locate an object's source.
    Return None if no way can be identified to get the source.
    """
    filename = getfile(object)
    all_bytecode_suffixes = importlib.machinery.BYTECODE_SUFFIXES[:]
    if any(filename.endswith(s) for s in all_bytecode_suffixes):
        filename = (os.path.splitext(filename)[0] +
                    importlib.machinery.SOURCE_SUFFIXES[0])
    elif any(filename.endswith(s) for s in
                 importlib.machinery.EXTENSION_SUFFIXES):
        return None
    elif filename.endswith(".fwork"):
        # Apple mobile framework markers are another type of non-source file
        return None

    # return a filename found in the linecache even if it doesn't exist on disk
    if filename in linecache.cache:
        return filename
    if os.path.exists(filename):
        return filename
    # only return a non-existent filename if the module has a PEP 302 loader
    module = getmodule(object, filename)
    if getattr(module, '__loader__', None) is not None:
        return filename
    elif getattr(getattr(module, "__spec__", None), "loader", None) is not None:
        return filename

def getabsfile(object, _filename=None):
    """Return an absolute path to the source or compiled file for an object.