Use python logging instead of print statements

[KPostOffice]

Name of Feature or Improvement

Instead of printing messages use python logging library

Description of Problem the Feature Should Solve

the logging library offers more fine grain control over which messages are seen by a user (debug, warnings, info, etc.) and also integrates with third party tools

Describe the Solution You Would Like to See

Instances of print statements should be replaced by logging.info, logging.warn, or logging.debug

Describe Alternatives You Have Considered

Leave as is and continue using print statements.