Python compiler?

[J Dubal]

Hello good people!

I am new to python and I understand that although it is a free-to-use
language, it can be used to build commercial, propritary applications.
Is this correct?
Does it have a compiler for Linux and/or windows that can produce native
executables?
If not, do we have to distribute python application sources?
Are there modules or libs available to bulid data entry/query applications
for character terminals?
Thanks in advance.
Best wishes.
Dubal.