Python itertools Module

This page shows the popular functions and classes defined in the itertools module. The items are ordered by their popularity in 40,000 open source Python projects. If you can not find a good example below, you can try the search function to search modules.

• 1. chain()    
  Used in 2166 projects
• 2. product()    
  Used in 1869 projects
• 3. islice()    
  Used in 890 projects
• 4. count()    
  Used in 885 projects
• 5. combinations()    
  Used in 836 projects
• 6. groupby()    
  Used in 759 projects
• 7. cycle()    
  Used in 667 projects
• 8. repeat()    
  Used in 541 projects
• 9. zip_longest()    
  Used in 462 projects
• 10. izip()    
  Used in 461 projects
• 11. permutations()    
  Used in 400 projects
• 12. imap()    
  Used in 330 projects
• 13. tee()    
  Used in 285 projects
• 14. takewhile()    
  Used in 240 projects
• 15. izip_longest()    
  Used in 229 projects
• 16. starmap()    
  Used in 167 projects
• 17. dropwhile()    
  Used in 139 projects
• 18. ifilter()    
  Used in 115 projects
• 19. filterfalse()    
  Used in 105 projects
• 20. combinations_with_replacement()    
  Used in 97 projects
• 21. accumulate()    
  Used in 72 projects
• 22. compress()    
  Used in 70 projects
• 23. ifilterfalse()    
  Used in 64 projects
• 24. html()    
  Used in 10 projects