I have been using pycrypto on my windows machine running python 2.7. 
When I tried to install pycrypto on qpython2.7 via pip I got Runtime error ("autoconf error"). For reference I am running qpython on stock android nougat with no root access.
Is there any way to install pycrypto for qpython 
Not a problem ended up using pyaes instead of pycrypto.
Qpython didn't support pycrypto now, we will consider to support it as soon after we have delivered our brand new version which we were developing.
How to install pycrypto on qpython?