Getting error with subprocess while running aws s3 cp: [Errno 2] No such file or directory: 'aws'

Question

I am able to execute this command successfully from command line and it copies the desired csv to the s3 bucket aws s3 cp /Users/kaswani/tips.csv s3://dplearn/

But, when I try to run the same from within python using subprocess it throws error: subprocess.check_output(['aws','s3','cp','/Users/kaswani/tips.csv','s3://dplearn/'])

Error:

Traceback (most recent call last):
  File "<input>", line 1, in <module>
  File "/Users/kaswani/anaconda/envs/aws/lib/python3.5/subprocess.py", line 626, in check_output
    **kwargs).stdout
  File "/Users/kaswani/anaconda/envs/aws/lib/python3.5/subprocess.py", line 693, in run
    with Popen(*popenargs, **kwargs) as process:
  File "/Users/kaswani/anaconda/envs/aws/lib/python3.5/subprocess.py", line 947, in __init__
    restore_signals, start_new_session)
  File "/Users/kaswani/anaconda/envs/aws/lib/python3.5/subprocess.py", line 1551, in _execute_child
    raise child_exception_type(errno_num, err_msg)
FileNotFoundError: [Errno 2] No such file or directory: 'aws'

I have not been able to debug it. Subprocess works just fine for basic commands like ls etc

Answer 1

Using, shell=True makes is work, ie subprocess.check_output(['aws','s3','cp','/Users/kaswani/tips.csv','s3://dplearn/'], shell=True)