Topic: egg archive and setup python

All kind time of days. Can explain for a minute that made not correctly.
Downloaded with  the project on a python. There there is setup.py I it installed through python setup.py build, install (at first build then install)
In dependences there   mpyq (it is not important what), I tried it to put writes that it already registered in a packet.egg
I did not understand as it it is possible now
Tried to install this  explicitly. She all the same writes that already  in a packet.egg
In general import did not work.
In general I simply dearchived egg and got this unit. Prompt I that made that not on , it was necessary as that this business on  all to do was?