I am new to Cygwin, using it in order to learn Python. I am attempting to install Eric6 Python IDE, which requires certain packages such as PyQt5, Scintilla2, etc.

I installed python2, python3, PyQt5, pip3.6 (pip-9.0.3), and several other packages using the Cygwin setup app (setup-x86\_64.exe). 

When I attempt to install Eric6:

```
$ python3 install.py
Checking dependencies
Python Version: 3.6.4
Found PyQt5
Found pyuic5
Sorry, please install QScintilla2 and
its PyQt5/PyQt4 wrapper.
Error: cannot import name 'Qsci'

```

Update
------

Per matzeri's answer, I found that I had missed seeing scintilla2 in the Cygwin packages list, so I installed it from there `[package: mingw64-x86_64-qscintilla2-qt5]` and it appeared to install without any issues. However, I continue to get the exact same error as before when attempting to install Eric6 `*Sorry, please install QScintilla2 and its PyQt5/PyQt4 wrapper. Error: cannot import name 'Qsci'*`

I have tried rebooting both Cygwin and the local machine, with no luck.