从CSV到列表的字符串-Python

Question

I don't get it. I have a CSV data with the following content:

wurst;ball;hoden;sack
1;2;3;4
4;3;2;1

I want to iterate over the CSV data and put the heads in one list and the content in another list. Heres my code so far:

data = [ i.strip() for i in open('test.csv', 'r').readlines() ]

for i_c, i in enumerate(data):
    if i_c == 0:
            heads = i
    else:
            content = i

heads.split(";")
content.split(";")
print heads

That always returns the following string, not a valid list.

wurst;ball;hoden;sack

Why does split not work on this string?

Greetings and merry Christmas, Jan

Answer 1

The split method returns the list, it does not modify the object in place. Try:

heads = heads.split(";")
content = content.split(";")

I've noticed also that your data seems to all be integers. You might consider instead the following for content :

content = [int(i) for i in content.split(";")]

The reason is that split returns a list of strings, and it seems like you might need to deal with them as numbers in your code later on. Of course, disregard if you are expecting non-numeric data to show up at some point.