Question

I have a py file using Qt Designer,i have a combobox and i read from a csv file.If the combobox choice is in the file,it prints something.

At the top of the script it says that: # -*- coding: utf-8 -*-

So, the error i get is this:

PyQt4.QtCore.QString(u'choice') is not in list

The ‘choice’ is of course in list.I believe its an encoding problem,but that’s all i got.

u’choice’ is a string and the list contains strings.

This is how i add items to the list:

import csv
list1=csv.reader(open('file.csv', "rb"))
list2=[]
for i in list1:
   list2.append(i)

Any ideas?Thanks.

Answer 1

This has got nothing to do with encodings.

The error occurs simply because there are no strings in the list read from the csv file:

>>> import csv
>>> with open('tmp.csv', 'wb') as stream:
...     csv.writer(stream).writerow(['choice'])
... 
>>> lst = []
>>> with open('tmp.csv', 'rb') as stream:
...     for row in csv.reader(stream):
...         lst.append(row)
... 
>>> from PyQt4.QtCore import QString
>>> s = QString(u'choice')
>>> lst.index(s)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ValueError: PyQt4.QtCore.QString(u'choice') is not in list
>>> lst
[['choice']]
>>> lst[0].index(s)
0

The csv reader returns a list of strings for each row in the file.