I have developed a set of python scripts to complement the existing bmc.py script which forms part of the Black Market Client (BMC) command line tool for use with GLBSE.
The project is available here ... https://github.com/bennywalsh/BMC-Tools
The initial three scripts are available here ... https://raw.github.com/bennywalsh/BMC-Tools/master/spread-asset-history.py https://raw.github.com/bennywalsh/BMC-Tools/master/spread-bitcoin-history.py https://raw.github.com/bennywalsh/BMC-Tools/master/spread-market-history.py
Please raise issues with the scripts (bugs, feature requests etc ...) on the github site.
I am intending to develop some scripts for automating BMC operations and possibly some trading bots in the future.
I am also taking requests for scripts to enhance BMC further - let me know what you want.
Details on BMC are available here ... https://gitorious.org/black-market/black-market-client