How to get data from CSV file in Python?

Question

I am using csv.reader to read file but it giving me whole file.

file_data = self.request.get('file_in');
file_Reader = csv.reader( file_data );
for fields in file_Reader:

I want one line at a time and separate data from that line.

ex: filedata = name,sal,dept
               x,12000,it
o\p=
name
sal
dept
.
.
.

Answer 1

This

>>> import csv
>>> spamReader = csv.reader(open('eggs.csv'), delimiter=' ', quotechar='|')
>>> for row in spamReader:
...     print ', '.join(row)
Spam, Spam, Spam, Spam, Spam, Baked Beans
Spam, Lovely Spam, Wonderful Spam

Was taken from the manual

Hope that helps...

Answer 2

It looks like you are trying to pass a string of data directly to csv.reader(). It's expecting an iterable object like a list or filehandle. The docs for the csv module mention this. So you probably want to split the string along newlines before passing it to csv.reader.

import csv
file_data = self.request.get('file_in')
file_data_list = file_data.split('\n')
file_Reader = csv.reader(file_data_list)
for fields in file_Reader:
    print row

Hope that helps.

Answer 3

Why not do it manually?

for line in fd:
        foo, bar, baz = line.split(";")

Answer 4

Usually the delimiter used is ",", I have mapped the data into x,y variables

import csv
x = []
y=  []
with open('FileName.csv','r') as csvfile:
    plot=csv.reader(csvfile,delimiter=',')
for row in plot:
    x.append(int(row[0])) 
    y.append(int(row[1]))

plt.bar(x,y,label='name')