Thanks for your reply and the link. Got the "gmeter-wattcher.py" to run but it is not able to post data to Google Powermeter (no update in status after clicking "check measurements again").
Looking at the example in your website, the script should display a line that starts with : "www.google.com:443..." This looks like is Google's acknowledgment that the data was received. My script does not display that line.
What I get in place of the "www.google.com:443..." line is this:
"2010 06 21, 22:10, 1, 121.37832542"
After that, I get the following error message:
"-- error: (10060, 'Operation timed out')"
Do I need to modify any additional ".py" files in order for gmeter-wattcher to work correctly ?