[Python-bugs-list] [ python-Bugs-807107 ] "TypeError: iteration over non-sequence" for list of strings

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Bugs item #807107, was opened at 2003-09-16 08:11
Message generated for change (Settings changed) made by rhettinger
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=105470&aid=807107&group_id=5470

Category: Parser/Compiler
Group: Trash
>Status: Closed
>Resolution: Invalid
Priority: 1
Submitted By: Geir M. Koien (gmkoien)
Assigned to: Nobody/Anonymous (nobody)
Summary: "TypeError: iteration over non-sequence" for list of strings

Initial Comment:
The following code gives me the "TypeError: iteration 

over non-sequence" error.



I don't see why this shouldn't work.



Python 2.3 (#46, Jul 29 2003, 18:54:32) [MSC v.1200 

32 bit (Intel)] on win32

Type "copyright", "credits" or "license()" for more 

information.



list = ["I am a boy", "You are a girl"]

for i in len(list):

	line = list[i]



	

Traceback (most recent call last):

  File "<pyshell#39>", line 1, in ?

    for i in len(list):

TypeError: iteration over non-sequence



***

If I take the steps manually it works....



>>> len(list)

2

>>> list[0]

'I am a boy'

>>> list[1]

'You are a girl'

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Comment By: Neal Norwitz (nnorwitz)
Date: 2003-09-16 09:17

Message:
Logged In: YES 
user_id=33168

You need to do either:



for i in range(len(list)):

    line = list[i]



OR



for line in list:

   ...



The error message is telling you that you are trying to

iterate over an int which is returned from len(list).  Hope

this helps.

----------------------------------------------------------------------

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