CODEWITHSUNDEEP
python
zhen yuan
zhen yuan

Reputation: 15

TypeError: NoneType object is not iterable

When I am iterating through my variable it gives me an error which I show as below.

Traceback (most recent call last):
  File "C:\Users\ZHEN YUAN\Desktop\东航第一步\wen2.py", line 13, in <module>
    for i in Names:
TypeError: 'NoneType' object is not iterable

Upvotes: 1

Views: 651

Answers (2)

zhen yuan
zhen yuan

Reputation: 15

import os

def wenjian(file): for root,dirs,files in os.walk(file): for file in files: filename = os.path.join(root,file) print (filename[-28:])

file = ("C:\Users\ZHEN YUAN\Desktop\东航try")

Names = wenjian(file)

for i in Names: print (i[1])


PS C:\Users\ZHEN YUAN> & python "c:/Users/ZHEN YUAN/Desktop/东航第一步/wen2.py"
\Desktop\东航try\C2002455.xlsx
Traceback (most recent call last):
  File "c:/Users/ZHEN YUAN/Desktop/东航第一步/wen2.py", line 14, in <module>
    for i in Names:
TypeError: 'function' object is not iterable

Upvotes: 0

Arne
Arne

Reputation: 10545

Your function wenjian() does not have any return statements, so it will always return None, by default. That's why Names = wenjian(file) assigns the value None to Names, and so you can't iterate over Names with the for loop.

Upvotes: 1

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