Error Reading CSV File from Disk

Code below works fine running straight from command line on Mac. Running python 3.5. Atom was launched from command line.

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

```
import csv

with open('driving.csv', encoding='utf-8') as csvfile:
reader = csv.DictReader(csvfile)
for row in reader:
print(row['ACCELEROMETER X (m/s)'], row['ACCELEROMETER Y (m/s)'])
```