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This article mainly introduces "how to add a progress bar to a program". In daily operation, I believe many people have doubts about how to add a progress bar to the program. The editor consulted all kinds of data and sorted out a simple and easy-to-use method of operation. I hope it will be helpful for everyone to answer the question of "how to add a progress bar to the program"! Next, please follow the editor to study!

Fascinating progress bar

A progress bar is a visual representation of the rest of a process. They save you from worrying about whether the process hangs or trying to predict the progress of the code. You can see in real time how well the script works!

If you have never considered or used progress bars before, it is easy to assume that they add unnecessary complexity to your code and are difficult to maintain. This is a far cry from the truth. With a few lines of code, we'll see how to add a progress bar to a command-line script.

Use the Progress library

The first python library to use is Progress.

All you need to do is define the number of iterations you want to do, the type of bar, and let bar know at each iteration.

Import time from progress.bar import IncrementalBar mylist = [1 Countdown', max 2 3 time.sleep 4 5 6 7 8] bar = IncrementalBar ('Countdown', max = len (mylist)) for item in mylist: bar.next () time.sleep (1) bar.finish ()

Running result

Use the tqdm library

The next step is the tqdm library.

Fast, extensible progress bar for Python and CLI

Just like the last library we saw, we can introduce a progres bar in a few lines of code. There are only slight differences in settings:

Import time from tqdm import tqdm mylist = [1 mylist 2 3 4 4 5 6 7 8] for i in tqdm (mylist): time.sleep (1)

Running result:

Use the Alive Progress library

As the name implies, the library attempts to activate the progress bar. It has more animation than the progress bar we saw before. But in terms of code, it's very similar:

From alive_progress import alive_bar import time mylist = [1 len 2 (mylist)) as bar: for i in mylist: bar () time.sleep (1)

Graphical progress bar using PySimpleGUI

We can add a line of code to add a graphical progress bar to the command line script.

To achieve the above goals, what we need is:

Import PySimpleGUI as sg import time mylist = [1Jing 2 Jing 3 Jing 4 Jing 5 Jing 6 Jing 7 Ji 8] for I, item in enumerate (mylist): sg.one_line_progress_meter ('This is my progress metrology, item1, len (mylist),'-key-') time.sleep (1) this is the end of the study on "how to add a progress bar to a program", hoping to solve everyone's doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

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