How to read csv file in python

How does python read CSV files? Here are three different ways for you:

Reading with normal method:

with open("fileName.csv") as file:     
    for line in  file:        
        print line

Reading with CSV standard library:

import csv
csv_reader = csv.reader(open("fileName.csv"))
for row in csv_reader:     
    print row

Read with pandas:

import pandas as pd
data = pd.read_csv("fileName.csv")
print data
data = pd.read_table("fileName.csv",sep=",")
print data

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