remove None value from a list without removing the 0 value

by 
>>> L = [0, 23, 234, 89, None, 0, 35, 9]
>>> [x for x in L if x is not None]
[0, 23, 234, 89, 0, 35, 9]

Just for fun, here’s how you can adapt filter to do this without using a lambda, (I wouldn’t recommend this code – it’s just for scientific purposes)

>>> from operator import is_not
>>> from functools import partial
>>> L = [0, 23, 234, 89, None, 0, 35, 9]
>>> list(filter(partial(is_not, None), L))
[0, 23, 234, 89, 0, 35, 9]

More Related Contents:

  1. List comprehensions
  2. Find a unique element in a list [closed]
  3. What does “list comprehension” and similar mean? How does it work and how can I use it?
  4. Why does append() always return None in Python? [duplicate]
  5. How to find all occurrences of an element in a list
  6. List comprehension on a nested list?
  7. Pythonic way to print list items
  8. if else in a list comprehension [duplicate]
  9. Transpose a matrix in Python [duplicate]
  10. Why is a list comprehension so much faster than appending to a list?
  11. Python’s most efficient way to choose longest string in list?
  12. List comprehension vs. lambda + filter
  13. Removing item from list causes the list to become NoneType
  14. Calling filter returns [duplicate]
  15. List comprehension vs generator expression’s weird timeit results?
  16. How to unzip a list of tuples into individual lists? [duplicate]
  17. list() uses slightly more memory than list comprehension
  18. Appending item to lists within a list comprehension
  19. Python using enumerate inside list comprehension
  20. Nested list comprehensions
  21. How to remove multiple items from a list in just one statement?
  22. List with duplicated values and suffix
  23. how to keep elements of a list based on another list [duplicate]
  24. Python: filtering lists by indices
  25. flatten list of list through list comprehension
  26. Converting List Comprehensions to For Loops in Python
  27. Sort list while pushing None values to the end
  28. Can’t sort my list because it is NoneType? Simple Python [duplicate]
  29. Optimal method to find the max of sublist items within list
  30. Skip elements on a condition based in a list comprehension in python

Leave a Comment