How to check if all of the following items are in a list?

by

Operators like <= in Python are generally not overriden to mean something significantly different than “less than or equal to”. It’s unusual for the standard library does this–it smells like legacy API to me.

Use the equivalent and more clearly-named method, set.issubset. Note that you don’t need to convert the argument to a set; it’ll do that for you if needed.

set(['a', 'b']).issubset(['a', 'b', 'c'])

More Related Contents:

  1. Concatenating two lists – difference between ‘+=’ and extend()
  2. Test if lists share any items in python
  3. What’s the most Pythonic way to identify consecutive duplicates in a list?
  4. Pythonic way to return list of every nth item in a larger list
  5. Extract list of attributes from list of objects in python
  6. Iterate over pairs in a list (circular fashion) in Python
  7. Python: find a list within members of another list(in order)
  8. Pythonic way to convert a list of integers into a string of comma-separated ranges
  9. Slicing a list into a list of sub-lists [duplicate]
  10. convert string to list [duplicate]
  11. Unable to use convert strings into integers for a for loop
  12. Strange result when removing item from a list while iterating over it
  13. How to merge lists into a list of tuples?
  14. Pythonic way to print list items
  15. Pythonic way to check if a list is sorted or not
  16. Detecting consecutive integers in a list [duplicate]
  17. Non-alphanumeric list order from os.listdir()
  18. Python – use list as function parameters
  19. Add list to set
  20. How to find the min/max value of a common key in a list of dicts?
  21. Converting a list of tuples into a dict
  22. str.startswith with a list of strings to test for
  23. Python Array Slice With Comma?
  24. How to split strings inside a list by whitespace characters
  25. How to transform string of space-separated key,value pairs of unique words into a dict
  26. Python range() and zip() object type
  27. How to override the slice functionality of list in its derived class
  28. How do I merge multiple lists into one list? [duplicate]
  29. Python: filtering lists by indices
  30. Creating a list in Python with multiple copies of a given object in a single line

Leave a Comment