How to Remove Items While Iterating Safely

Removing during a loop skips data silently.

#python #listmutation #bug #howto #iteration

https://www.youtube.com/watch?v=AXA6i5tdh_0

Just stumbled upon changing a Python list **in place** with list comprehension:

somelist[:] = [elem for elem in somelist if myPredicate(elem)]

Note the peculiar left-hand side of the assignment. Nice.😀

#python #listcomprehension #listmutation