Method _copy_from_file

Lib/pathlib/__init__.py:1136–1142

(self, source, preserve_metadata=False)

            self._copy_from_file(source, preserve_metadata)

    def _copy_from_file(self, source, preserve_metadata=False):
        ensure_different_files(source, self)
        with magic_open(source, 'rb') as source_f:
            with open(self, 'wb') as target_f:
                copyfileobj(source_f, target_f)
        if preserve_metadata:
            copy_info(source.info, self)

    if copyfile2:
        # Use fast OS routine for local file copying where available.