In article <1d7fcebe-8677-42ec-a53d-284214296...@googlegroups.com>,
"C.T." <swilk...@gmail.com> wrote:
> Currently doing a project for class an I'm stuck. I have a csv file that I'm
> suppose to extract some information from. I've created a function that
> ignores the first six lines of the csv file and creates a list of values in a
> particular column. Here is the code:
>
>
> def get_values(file, index):
>
> '''(file object, int) -> list
> Return a list of states and corresponding values at a prticular index in
> file.'''
>
> values_list = []
> file.readlines(900)#skipping first 6 lines of file
Your intent is to skip the first 6 lines, but your code says "skip the
first 900 characters, plus enough to get to the end of the next line".
You're assuming 900 characters gets you to line 6. That's really
fragile.
If you really want to skip the first 6 lines, try something like:
for i in range(6):
file.readline()
The next problem I see is:
for line in file:
line_list = line.split(',')
You don't want to do that. Use the csv module
(http://docs.python.org/2/library/csv.html) to parse the file. It
handles quotes, embedded commas, and all sorts of annoying edge cases
you've probably never thought of.
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