2024年5月15日发(作者：私人浏览器)

pythontqdm参数详细说明

iterable : iterable, optional

Iterable to decorate with a progressbar. Leave blank to manually manage the updates.

desc : str, optional

Prefix for the progressbar.

total : int or float, optional

The number of expected iterations. If unspecified, len(iterable) is used if possible. If float("inf") or as a last resort, only basic

progress statistics are displayed (no ETA, no progressbar). If

gui

is True and this parameter needs subsequent updating, specify

an initial arbitrary large positive number, e.g. 9e9.

leave : bool, optional

If [default: True], keeps all traces of the progressbar upon termination of iteration. If

None

, will leave only if

position

is

0

.

file :

Wrapper

or

IO

, optional

Specifies where to output the progress messages (default: ). Uses

(str)

and

()

methods. For encoding, see

write_bytes

.

ncols : int, optional

The width of the entire output message. If specified, dynamically resizes the progressbar to stay within this bound. If

unspecified, attempts to use environment width. The fallback is a meter width of 10 and no limit for the counter and statistics. If 0,

will not print any meter (only stats).

mininterval : float, optional

Minimum progress display update interval [default: 0.1] seconds.

maxinterval : float, optional

Maximum progress display update interval [default: 10] seconds. Automatically adjusts

miniters

to correspond to

mininterval

after

long display update lag. Only works if

dynamic_miniters

or monitor thread is enabled.

miniters : int or float, optional

Minimum progress display update interval, in iterations. If 0 and

dynamic_miniters

, will automatically adjust to equal

mininterval

(more CPU efficient, good for tight loops). If > 0, will skip display of specified number of iterations. Tweak this and

mininterval

to

get very efficient loops. If your progress is erratic with both fast and slow iterations (network, skipping items, etc) you should set

miniters=1.

ascii : bool or str, optional

If unspecified or False, use unicode (smooth blocks) to fill the meter. The fallback is to use ASCII characters " 123456789#".

disable : bool, optional

Whether to disable the entire progressbar wrapper [default: False]. If set to None, disable on non-TTY.

unit : str, optional

String that will be used to define the unit of each iteration [default: it].

unit_scale : bool or int or float, optional

If 1 or True, the number of iterations will be reduced/scaled automatically and a metric prefix following the International System

of Units standard will be added (kilo, mega, etc.) [default: False]. If any other non-zero number, will scale

total

and

n

.

dynamic_ncols : bool, optional

If set, constantly alters

ncols

and

nrows

to the environment (allowing for window resizes) [default: False].

smoothing : float, optional

Exponential moving average smoothing factor for speed estimates (ignored in GUI mode). Ranges from 0 (average speed) to 1

(current/instantaneous speed) [default: 0.3].

bar_format : str, optional

Specify a custom bar string formatting. May impact performance. [default: '{l_bar}{bar}{r_bar}'], where l_bar='{desc}:

{percentage:3.0f}%|' and r_bar='| {n_fmt}/{total_fmt} [{elapsed}<{remaining}, ' '{rate_fmt}{postfix}]' Possible vars: l_bar, bar, r_bar,

n, n_fmt, total, total_fmt, percentage, elapsed, elapsed_s, ncols, nrows, desc, unit, rate, rate_fmt, rate_noinv, rate_noinv_fmt,

rate_inv, rate_inv_fmt, postfix, unit_divisor, remaining, remaining_s, eta. Note that a trailing ": " is automatically removed after

{desc} if the latter is empty.

initial : int or float, optional

The initial counter value. Useful when restarting a progress bar [default: 0]. If using float, consider specifying

{n:.3f}

or similar in

bar_format

, or specifying

unit_scale

.

position : int, optional

Specify the line offset to print this bar (starting from 0) Automatic if unspecified. Useful to manage multiple bars at once (eg, from

threads).

postfix : dict or

*

, optional

Specify additional stats to display at the end of the bar. Calls

set_postfix(**postfix)

if possible (dict).

unit_divisor : float, optional

[default: 1000], ignored unless

unit_scale

is True.

write_bytes : bool, optional

If (default: None) and

file

is unspecified, bytes will be written in Python 2. If

True

will also write bytes. In all other cases will default

to unicode.

lock_args : tuple, optional

Passed to

refresh

for intermediate output (initialisation, iterating, and updating).

nrows : int, optional

The screen height. If specified, hides nested bars outside this bound. If unspecified, attempts to use environment height. The

fallback is 20.

colour : str, optional

Bar colour (e.g. 'green', '#00ff00').

delay : float, optional

Don't display until [default: 0] seconds have elapsed.

delim : chr, optional

Delimiting character [default: 'n']. Use '0' for null. N.B.: on Windows systems, Python converts 'n' to 'rn'.

buf_size : int, optional

String buffer size in bytes [default: 256] used when

delim

is specified.

bytes : bool, optional

If true, will count bytes, ignore

delim

, and default

unit_scale

to True,

unit_divisor

to 1024, and

unit

to 'B'.

tee : bool, optional

If true, passes

stdin

to both

stderr

and

stdout

.

update : bool, optional

If true, will treat input as newly elapsed iterations, i.e. numbers to pass to

update()

. Note that this is slow (~2e5 it/s) since every

input must be decoded as a number.

update_to : bool, optional

If true, will treat input as total elapsed iterations, i.e. numbers to assign to

self.n

. Note that this is slow (~2e5 it/s) since every input

must be decoded as a number.

null : bool, optional

If true, will discard input (no stdout).

manpath : str, optional

Directory in which to install tqdm man pages.

comppath : str, optional

Directory in which to place tqdm completion.

log : str, optional

CRITICAL|FATAL|ERROR|WARN(ING)|[default: 'INFO']|DEBUG|NOTSET.