pip install fails

[bulletmark]

I see this new repo and decided to try it. However, I get the following:

(env)pi@pi2:~/pialarm pip install pifacecommon
Downloading/unpacking pifacecommon
  Downloading pifacecommon-2.0.0.tar.gz
  Running setup.py egg_info for package pifacecommon
    Traceback (most recent call last):
      File "<string>", line 16, in <module>
      File "/home/pi/pialarm/env/build/pifacecommon/setup.py", line 54, in <module>
        long_description=open('README.md').read() + open('CHANGELOG').read(),
    IOError: [Errno 2] No such file or directory: 'README.md'
    Complete output from command python setup.py egg_info:
    Traceback (most recent call last):

  File "<string>", line 16, in <module>

  File "/home/pi/pialarm/env/build/pifacecommon/setup.py", line 54, in <module>

    long_description=open('README.md').read() + open('CHANGELOG').read(),

IOError: [Errno 2] No such file or directory: 'README.md'

----------------------------------------
Cleaning up...
Command python setup.py egg_info failed with error code 1 in /home/pi/pialarm/env/build/pifacecommon
Storing complete log in /home/pi/.pip/pip.log

Can you also please add a small description of what this module is for, how it relates to the pifacedigitalio repo, and when we should use it instead of that repo?

I just want init(), read_bit(), and write_bit() with a single polled piface board so it seems to me that this repo is all I need, given the obscure comment at http://piface.github.io/pifacedigitalio/example.html refering me back to this repo?

[bulletmark]

Note I changed that line to long_description="something" and the setup.py install worked,so that pwd directory issue is the only problem.

Note, subsequent to my second comment above I discovered that pifacecommon is a low level module not really relevant to me as a user, e.g. it does not even initialise the piface board, e.g. does not set the input pullups. I don't see why you publish it as (yet another) github repo. Wouldn't be less confusing to users to make this an internal private module to pifacedigitalio?

FYI, I just apt installed python-pifacedigitalio, changed my import line, and my old piface repo based code worked fine.

[tompreston]

Hi, I should probably get around to removing the PyPi packages since we managed to get Debian packages sorted. Fragmentation is a problem for the user, sorry for the confusion.

Just to confirm:

sudo apt-get install python3-pifacecommon python3-pifacedigitalio

should be all you need to get everything up and running.

You're right about pifacecommon not being relevant to the user. The documentation is sparse since it's mainly a dev tool. In fact, it's due for a pretty large update (which I'm intending to push later today) which changes a lot of the functions. So I'd advice against using it until v4.0.0 is released.

The reason it's separate from pifacedigitalio is because is because pifacedigitalio isn't the only module using these common functions...

[bulletmark]

Actually, to confirm back to you, an

sudo apt-get install python-pifacedigitalio

was all that was required as pifacecommon automatically gets pulled in as a dependency. I am using python 2 because some of the other modules I am using do not have python 3 compatibility. FYI, my code has been running solidly scanning inputs and writing outputs every few millisecs for many months using your old piface module. Changing that one import line from "import piface.pfio as pf" to "import pifacedigitalio as pf" is all I needed to upgrade to your latest module. Thanks for maintaining the old api!