I have a recursive function as below which changes the global variable but it seems that i cannot pass the changed global variable to the recursive function since the error exceptions says:
File "forlooptest.py", line 18, in get_final_list
wordList.remove(w)
ValueError: list.remove(x): x not in list
I think list.remove(x): x not in list
is because the global variable hasn't been changed.
Could anyone tell me how can i do this? Thanks!
import wordNet
import copy
from __builtin__ import any as b_any
final_list = []
wrec = 'start'
def get_final_list(wordList, w):
'''functions for get the sematically linked words list
traverse and check every word then append to final_list'''
final_list.append(w)
hyplst = wordNet.gethypSet(w)
hyperlst = wordNet.gethyperSet(w)
wordList.remove(w)
for word in wordList:
if (word in hyplst
or word in hyperlst
or b_any(word in x for x in hyplst)
or b_any(word in x for x in hyperlst)):
global wrec
wrec = word
break
get_final_list(wordList, wrec)
return final_list
Your issue has nothing to do with global. If there's no word matching your criteria you just do the same recursive call, hence deleting wrec a second time.
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