Python: Send A Letter With SendLetter()

A simple script to send a sample letter using the PostalMethods 
SendLetter SOAP API call.
You must set your SOAP client with a reference to 
the PostalMethods Web Service: 
$ wsdl2py --url 
Detailed instructions available in the Python samples zip file
from postalmethods import client
print 'Testing SendLetter...'
c = client.PmClient('USERNAME','PASSWORD',workMode="Default")
result = c.sendLetter('SampleLetter.pdf','Sending a letter using Python')
print '   Letter was sent with result code: %d' % result
A positive value means the message was successfully queued for processing.
The PostalMethods Letter ID is returned.
A negative value means an error occurred.
See the PostalMethods Status Codes: