Number Thierry is a framework for introspecting and contextualizing integers; that is, checking various useful properties like primality, and establishing their context within both the abstract universe of integers and the concrete universe of accumulated human knowledge.
If that sounds like a lofty goal, install the package and try out some [examples], read the code, then start creating your own modules. Thierry is deliberately very modular, with the modules defining simple interfaces and having a logical hierarchy.
Thierry is also designed to be easily integrated with Python code and within other software environments ([Chrome], [Django]).
Obviously this is all performance critical - when doing a large number of tests or testing many integers, faster is much better.
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What's up with the name?
For non-native English speakers, the name is a pun on the term "number theory", the [branch of mathematics concerned with the study of integers].
Thierry is an upstanding young gentleman (cough), experienced in the instruction of young ladies in the mathematickal arts.