Sometimes, we want to use threading in Python.
In this article, we’ll look at how to use threading in Python.
How to use threading in Python?
To use threading in Python, we can use the Pool class from the multiprocessing.dummy module.
For instance, we write:
import urllib.request
from multiprocessing.dummy import Pool as ThreadPool
urls = [
'http://www.python.org', 'http://www.python.org/about/',
'http://www.onlamp.com/pub/a/python/2003/04/17/metaclasses.html',
'http://www.python.org/doc/', 'http://www.python.org/getit/'
]
pool = ThreadPool(4)
results = pool.map(urllib.request.urlopen, urls)
pool.close()
pool.join()
We import the Pool class as ThreadPool.
Then we create a thread pool with 4 worker threads in it with the ThreadPool class.
Next, we call pool.map with the urllib.request.urlopen function and urls to call urllib.request.urlopen with the entries in urls and return the results.
Then we call pool.close to close the pool and wait for the work to finish with pool.join.
Conclusion
To use threading in Python, we can use the Pool class from the multiprocessing.dummy module.
