Hello
I have a macbook pro with linux ubuntu 14.04 on it.
I followed http://reprap.org/wiki/Printrun install procedure successsfully but when I launch pronterface it says :
Traceback (most recent call last):
File "./pronterface.py", line 24, in
os.chdir(os.path.realpath(__file__))
OSError: [Errno 20] Not a directory: '/usr/share/printrun/pronterface.py'
I really don't undersatnd what to do next :
of course it's not a directory : it's the path+python file !

What should I do ?
Thank you

Sounds like it's time to file an issue in the Printrun Github repository.

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Generation 7 Electronics	Teacup Firmware	RepRap DIY

How I solve the problem :
instead of launching printrun from its install dir (/usr/share/etc...) I launched the copy made in my home dir by the script from the install procedure.
I don't know why it works but it works.
I wouln't say either that the problem is fixed.