Let's assume OSCClient is a class and I want instances of a class to begin with a lower case letter:
oSCClient = OSCClient() # ew!
edit: I asked this question because of pep 8 which says: "When using abbreviations in CapWords, capitalize all the letters of the abbreviation. Thus HTTPServerError is better than HttpServerError."
I'd use
oscClient = OSCClient() # yey