richardoey/pipreqs.md

## pipreqs.md

      
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              pipreqs.md
            
          
    How to automatically install required packages from a python script as necessary?

Based on here
Let's assume that your Python script is example.py:
import os
import time
import sys
import fnmatch
import requests
import urllib.request
from bs4 import BeautifulSoup
from multiprocessing.dummy import Pool as ThreadPool 
print('test')


You can use pipreqs to automatically generate a requirements.txt file based on the import statements that the Python script(s) contain. To use pipreqs, assuming that you are in the directory where example.py is located:
pip install pipreqs
pipreqs .


It will generate the following requirements.txt file:
requests==2.23.0
beautifulsoup4==4.9.1


which you can install with:
pip install -r requirements.txt