Defined in uproot.writing.writable on line 138.

uproot.writing.writable.update(file_path: str | Path | IO, **options)
  • file_path (str, pathlib.Path or file-like object) – The filesystem path of the file to open or an open file.

  • options – See below.

Opens a local file for writing. Like ROOT’s "UPDATE" option, this function expects a file to already exist at file_path and opens it so that new data can be added to it or individual objects may be deleted from it.

Returns a uproot.WritableDirectory.

Options (type; default):

  • initial_directory_bytes (int; 256)

  • uuid_function (callable; uuid.uuid1)

See uproot.WritableFile for details on these options.

Additional options are passed to as storage_options to the fsspec filesystem