diff --git a/pandas/io/common.py b/pandas/io/common.py index 54253803c4881..a01011cd7d4e4 100644 --- a/pandas/io/common.py +++ b/pandas/io/common.py @@ -246,8 +246,8 @@ def get_filepath_or_buffer( return _expand_user(filepath_or_buffer), None, compression, False if not is_file_like(filepath_or_buffer): - msg = "Invalid file path or buffer object type: {_type}" - raise ValueError(msg.format(_type=type(filepath_or_buffer))) + msg = f"Invalid file path or buffer object type: {type(filepath_or_buffer)}" + raise ValueError(msg) return filepath_or_buffer, None, compression, False @@ -355,9 +355,9 @@ def _infer_compression( if compression in _compression_to_extension: return compression - msg = "Unrecognized compression type: {}".format(compression) + msg = f"Unrecognized compression type: {compression}" valid = ["infer", None] + sorted(_compression_to_extension) - msg += "\nValid compression types are {}".format(valid) + msg += f"\nValid compression types are {valid}" raise ValueError(msg) @@ -454,13 +454,11 @@ def _get_handle( if len(zip_names) == 1: f = zf.open(zip_names.pop()) elif len(zip_names) == 0: - raise ValueError( - "Zero files found in ZIP file {}".format(path_or_buf) - ) + raise ValueError(f"Zero files found in ZIP file {path_or_buf}") else: raise ValueError( "Multiple files found in ZIP file." - " Only one file per ZIP: {}".format(zip_names) + f" Only one file per ZIP: {zip_names}" ) # XZ Compression @@ -469,7 +467,7 @@ def _get_handle( # Unrecognized Compression else: - msg = "Unrecognized compression type: {}".format(compression) + msg = f"Unrecognized compression type: {compression}" raise ValueError(msg) handles.append(f)