I guess using uniform_pdf to be consistent with SciPy’s uniform.pdf:
https://docs.scipy.org/doc/scipy/reference/generated/scipy.stats.uniform.html
I don’t know. I would have to see all the functions. Generally I prefer if the first part is what there is less of. So if there are a lot of options for “uniform”, but just a few for “pdf”, then perhaps pdf_uniform is better. If it is the other way round, then uniform_pdf would be better?
Update: Based on @Beliavsky’s comment Poll: Naming a function in stdlib - #6 by Beliavsky I changed my vote to pdf_uniform.