Delete a key in deictionary when iterating through the dictionary?-CodePudding

#How do I delete a key in deictionary when iterating through the dictionary?

for k in lst_keywords_physics_dict.keys():
if (len(k)==1):
    lst_keywords_physics_dict.pop(k)
    break

CodePudding user response：

#We can use this method in python 3 to delete the keys when iterating throug the dictionary without getting the error regarding changing size of dictionary.

for k in list(lst_keywords_physics_dict.keys()):
   if (len(k)<3):
       lst_keywords_physics_dict.pop(k)

CodePudding user response：

You are already doing it correctly.

for example:

lst_keywords_physics_dict = {'a': 1, 'b': 2}

for k in lst_keywords_physics_dict.keys():
    if len(k) == 1:
        lst_keywords_physics_dict.pop(k)
        break

So, what was the issue you were facing? , I can modify the answer accordingly.