[Python] IOError: [Errno 2] No such file or directory: 'sample.csv'

I am getting an IOError:

[Errno 2] No such file or directory: 'sample.csv'


The CSV file exists in the same location as the script. I am running it from the same path as well. This is my code:

import csvkit
file_name='sample.csv'
with open(file_name,'rb') as f:
reader = csvkit.reader(f)
print reader

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