Share two useful Python gadgets

Hello, everyone, today I would like to introduce to you two small tools that are easy to use in Python.

Although the usage is simple, it can greatly improve the development efficiency.

1. tqdm

When the forloop in the program takes a lot of time to execute, we often add an 计数器output program execution progress.

The disadvantage of this method is that it needs to write some code that is not related to the business, and it prints too much information.

If we use tqdma progress bar to display the execution progress of the program, the above shortcomings can be effectively avoided.

Very simple to use

import time
from tqdm import tqdm
for i in tqdm(range(100)):
    time.sleep(1)

This gadget also has other useful functions, you can explore it yourself if you are interested.

2. glob

The second gadget is a module that comes with the Python library -- glob.

It can Unixaccess local files in style.

For example, we want to list all giffiles in the current directory

import glob

glob.glob('./*.ipynb')

The output is as follows:

['./cnn.ipynb', './blob.ipynb', './test.ipynb']

and many more examples

>>> import glob
>>> glob.glob('./[0-9].*')
['./1.gif', './2.txt']
>>> glob.glob('*.gif')
['1.gif', 'card.gif']
>>> glob.glob('?.gif')
['1.gif']
>>> glob.glob('**/*.txt', recursive=True)
['2.txt', 'sub/3.txt']
>>> glob.glob('./**/', recursive=True)
['./', './sub/']

How, is the gadget simple and efficient, haha, I hope it will be useful to everyone.

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