Your company here — click to reach over 10,000 unique daily visitors

tqdm - Man Page

fast, extensible progress bar for Python and CLI


tqdm [options]


See <https://github.com/tqdm/tqdm>. Can be used as a pipe:

$ # count lines of code
$ cat *.py | tqdm | wc -l
327it [00:00, 981773.38it/s]

$ # find all files
$ find . -name "*.py" | tqdm | wc -l
432it [00:00, 833842.30it/s]

# ... and more info
$ find . -name '*.py' -exec wc -l \{} \; \
  | tqdm --total 432 --unit files --desc counting \
  | awk '{ sum += $1 }; END { print sum }'
counting: 100%|█████████| 432/432 [00:00<00:00, 794361.83files/s]


-h,  --help

Print this help and exit.

-v,  --version

Print version and exit.


str, optional. Prefix for the progressbar.


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.


bool, optional. If [default: True], keeps all traces of the progressbar upon termination of iteration. If None, will leave only if position is 0.


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).


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


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.


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.


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


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


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


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.


bool, optional. If set, constantly alters ncols and nrows to the environment (allowing for window resizes) [default: False].


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].


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.


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.


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).


dict or *, optional. Specify additional stats to display at the end of the bar. Calls set_postfix(**postfix) if possible (dict).


float, optional. [default: 1000], ignored unless unit_scale is True.


bool, optional. Whether to write bytes. If (default: False) will write unicode.


tuple, optional. Passed to refresh for intermediate output (initialisation, iterating, and updating).


int, optional. The screen height. If specified, hides nested bars outside this bound. If unspecified, attempts to use environment height. The fallback is 20.


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


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


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


int, optional. String buffer size in bytes [default: 256] used when delim is specified.


bool, optional. If true, will count bytes, ignore delim, and default unit_scale to True, unit_divisor to 1024, and unit to 'B'.


bool, optional. If true, passes stdin to both stderr and stdout.


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.


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.


bool, optional. If true, will discard input (no stdout).


str, optional. Directory in which to install tqdm man pages.


str, optional. Directory in which to place tqdm completion.




tqdm developers <https://github.com/tqdm>.


2015-2021 tqdm User Manuals