Details about Python multi-thread instances and python multi-thread instances

Details about Python multi-thread instances and python multi-thread instances

Detailed description of Python multi-thread instances

Multithreading is usually a new background thread to process time-consuming operations. It is also very easy for Python to process Background threads. Today, I found a Demo from the official documentation.

Instance code:

import threading, zipfile  class AsyncZip(threading.Thread):   def __init__(self, infile, outfile):     threading.Thread.__init__(self)     self.infile = infile     self.outfile = outfile   def run(self):     f = zipfile.ZipFile(self.outfile, 'w', zipfile.ZIP_DEFLATED)     f.write(self.infile)     f.close()     print('Finished background zip of:', self.infile)  background = AsyncZip('mydata.txt', 'myarchive.zip') background.start() print('The main program continues to run in foreground.')  background.join()  # Wait for the background task to finish print('Main program waited until background was done.') 

Result:

The main program continues to run in foreground. Finished background zip of: mydata.txt Main program waited until background was done. Press any key to continue . . . 

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