pymocklib
This is a Python 3.10 port of https://git.eisfunke.com/software/mock/, a library for manipulating human-readable message strings.
It does stuff like this:
In [1]: import mock
In [2]: mock.to_random("pymocklib is a sick library. like sick as in ill")
Out[2]: 'PYMoCKlib is a SIcK LIBrary. LIkE siCK as in ILL'
In [3]: mock.to_alternating("pymocklib is really dope. Like your mom, probably")
Out[3]: 'pYmOcKlIb is reAlLy doPe. LIKe yoUr moM, prObAbLy'
In [4]: mock.to_pseudo_cyrillic("pymocklib is really dope. Like your mom probably")
Out[4]: 'pџmөcкlɪв ɪs яёдllџ dөpё. Lɪкё џөця mөm pяөвдвlџ'
In [5]: print(mock.to_square("wtf?!"))
w t f ? !
t
f
?
!
In [6]: print(mock.to_clap("what the actuall fucking shite?"))
what👏the👏actuall👏fucking👏shite?