Python tqdm package – how to configure for less frequent status bar updates
Question:
I’m using a tqdm package (v4.19.5) for a loop with 200K+ iterations in Python 3.6 (Anaconda 3, Windows 10 x64, PyCharm IDE). It prints the status bar too frequently, so that my earlier history disappears in the console.
Is there a way to limit the frequency of status bar updates? I can’t seem to find this solution online or tqdm website.
Currently, my status bar prints like this. Ideally, I’d like to set put a cap on percentage change. For example, update it not more frequently than once per 1% change/progress.
Answers:
You can use miniters parameter i have it from source code
https://github.com/tqdm/tqdm/blob/master/tqdm/_tqdm.py
tqdm.tqdm(iterable, miniters=int(223265/100))
The accepted answer and the cited public API
tqdm.tqdm(iterable, miniters=int(223265/100))
is correct but the code location has changed to here` https://github.com/tqdm/tqdm/blob/master/tqdm/std.py#L890-L897
Below is the description of miniters option:
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.
It is convenient to use mininterval option that defines minimum time interval between updates. For instance, to update every n_seconds use:
tqdm(iterable, mininterval=n_seconds)
I may be seeing a different problem than the one you asked about: each update to the progress bar is written to a separate new line on your end, which has been a bug of Pycharm’s for years. If you run your Python script directly in a command line, there should only be a single line showing progress, and it should keep updating. Alternatively, you can set "Emulate terminal in output console" in the run/debug configurations (see screenshot attached). However, the problem might have been fixed by an update in the meantime.
I’m using a tqdm package (v4.19.5) for a loop with 200K+ iterations in Python 3.6 (Anaconda 3, Windows 10 x64, PyCharm IDE). It prints the status bar too frequently, so that my earlier history disappears in the console.
Is there a way to limit the frequency of status bar updates? I can’t seem to find this solution online or tqdm website.
Currently, my status bar prints like this. Ideally, I’d like to set put a cap on percentage change. For example, update it not more frequently than once per 1% change/progress.
You can use miniters parameter i have it from source code
https://github.com/tqdm/tqdm/blob/master/tqdm/_tqdm.py
tqdm.tqdm(iterable, miniters=int(223265/100))
The accepted answer and the cited public API
tqdm.tqdm(iterable, miniters=int(223265/100))
is correct but the code location has changed to here` https://github.com/tqdm/tqdm/blob/master/tqdm/std.py#L890-L897
Below is the description of miniters option:
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.
It is convenient to use mininterval option that defines minimum time interval between updates. For instance, to update every n_seconds use:
tqdm(iterable, mininterval=n_seconds)
I may be seeing a different problem than the one you asked about: each update to the progress bar is written to a separate new line on your end, which has been a bug of Pycharm’s for years. If you run your Python script directly in a command line, there should only be a single line showing progress, and it should keep updating. Alternatively, you can set "Emulate terminal in output console" in the run/debug configurations (see screenshot attached). However, the problem might have been fixed by an update in the meantime.