def lambda_handler(event, context):
    import subprocess

    # Define parameters
    user = 'myUser'
    password = 'myPass'
    host = 'my.endpoint.amazon.aws.com'
    name = 'myDB'

    # Define MySQL dump bash command
    bashCommand = "mysqldump --user=%s --password=%s --host=%s %s > myFile.sql"
      % (user, password, host, name)

    # Define subprocess
    process = subprocess.Popen(bashCommand.split(), stdout=subprocess.PIPE)

    # Execute subprocess
    output = process.communicate()[0]

    # End
    return 'myDb RDS MySQL dump completed!'

START RequestId: 0e7e0d6b-4a06-11e6-8a09-a39e1a6b858b Version: $LATEST
[Errno 2] No such file or directory: OSError
Traceback (most recent call last):
  File "/var/task/lambda_function.py", line 15, in lambda_handler
    process = subprocess.Popen(bashCommand.split(), stdout=subprocess.PIPE)
  File "/usr/lib64/python2.7/subprocess.py", line 710, in __init__
    errread, errwrite)
  File "/usr/lib64/python2.7/subprocess.py", line 1335, in _execute_child
    raise child_exception
OSError: [Errno 2] No such file or directory

END RequestId: IDstuff
REPORT RequestId: blahblahblah  Duration: 2.26 ms   Billed Duration: 100 ms     Memory Size: 128 MB Max Memory Used: 16 MB