cannot read csv file in python

This is probably beacuse you run the script from different directoy.

For instance, if I have the following script at my Desktop:

import os
print(os.getcwd())

running the script from the Desktop I get:

~/Desktop » py3 SO.py                                         Sriker@Sriker-MBP
/Users/Sriker/Desktop

While from different directory I get:

~ » py3 Desktop/SO.py                                         Sriker@Sriker-MBP
/Users/Sriker

So you either run the script from the right directory, or build the path to gg.csv properly before trying to open it.

Which os are you using?. Try with providing full url to your file and see if it works

If you are using Windows, try renaming

open('gg.csv')

to

open('\gg.csv')

with open(r'gg.csv') as csv_file:

this may work otherwise use

df=pd.read_csv("gg.csv")

if the csv is in row and column format.

tl;dr: You are running your script in another directory.

You are running it in another directory other than the main one. Basically, "gg.csv" in python has a relative path. For example, if I am in my home directory, (in Linux) this should correspond to the path of:

/home/<whatever username>/gg.csv

But say you are in your Desktop directory, in Linux, python interprets that as:

/home/<whatever username>/Desktop/gg.csv

Because you are running it in a different directory, Python thinks you are corresponding to the gg.csv there, not the gg.csv with the directory that has the script.

Thus, run it in the correct directory or set a absolute path that always links to the correct directory and path.