All members are camel case, right? Why True/False but not true/false, which is more relaxed?
From Pep 285:
Should the constants be called 'True' and 'False' (similar to None) or 'true' and 'false' (as in C++, Java and C99)?
=> True and False.
Most reviewers agree that consistency within Python is more important than consistency with other languages.
This, as Andrew points out, is probably because all (most)? built-in constants are capitalized.