A module for printing status messages and progress bars to the command line.

progress classes


class graphtage.progress.StatusWriter(out_stream: Optional[TextIO] = None, quiet: bool = False)

Bases: IO[str]

A writer compatible with the graphtage.printer.Writer protocol that can print status.

See StatusWriter.tqdm() and StatusWriter.trange(). If StatusWriter.status_stream is either sys.stdout or sys.stderr, then bytes printed to this writer will be buffered. For each full line buffered, a call to tqdm.write() will be made.

A status writer whose lifetime is not controlled by instantiation in a with block must be manually flushed with StatusWriter.flush(final=True) after its final write, or else the last line written may be lost.

__init__(out_stream: Optional[TextIO] = None, quiet: bool = False)

Initializes a status writer.

  • out_stream – An optional stream to which to write. If omitted this defaults to sys.stdout.

  • quiet – Whether or not tqdm status messages and progress should be suppressed.

close() None
property closed: bool
fileno() int

Flushes this writer.

If final is True, any extra bytes will be flushed along with a final newline.

isatty() bool
property mode: str
property name: str

Whether or not tqdm status messages and progress should be suppressed.

read(n: int = Ellipsis) AnyStr
readable() bool
readline(limit: int = Ellipsis) AnyStr
readlines(hint: int = Ellipsis) List
seek(offset: int, whence: int = Ellipsis) int
seekable() bool
status_stream: TextIO

The status stream to which to print.

tell() int
tqdm(*args, **kwargs) tqdm.std.tqdm

Returns a tqdm.tqdm object.

trange(*args, **kwargs) tqdm.std.trange

Returns a tqdm.trange object.

truncate(size: Optional[int] = Ellipsis) int
writable() bool
write(text: str) int

If True, this writer will not buffer output and use tqdm.write().

This defaults to:

self.write_raw = self.quiet or (
    out_stream.fileno() != sys.stderr.fileno() and out_stream.fileno() != sys.stdout.fileno()
writelines(lines: Iterable) None