Hi everyone! The 14.0.2 version of Twisted is latest that is available for Raspbian as a package, so until today I used it. I run my Twisted application in the following way:
twistd -ny master_player2.tac
There were no problems with starting my application.
Yesterday I started facing strange problem with unjellying which looked like a bug. So I decided to remove old package version of Twisted (installed using apt-get) and install latest version using pip (which was 16.6.0). The commands I issued were (typing by memory):
sudo apt-get purge python-twisted
sudo apt-get autoremove
sudo pip install Twisted
After issuing these commands, without rebooting, I tried running my program as usual:
twistd -ny master_player2.tac
But it failed (sorry for long citation):
pi@raspberrypi:~/ColourDreams/Soft $ twistd -ny master_player2.tac
:0: UserWarning: You do not have a working installation of the service_identity module: 'No module named service_identity'. Please install it from <https://pypi.python.org/pypi/service_identity> and make sure all of its dependencies are satisfied. Without the service_identity module and a recent enough pyOpenSSL to support it, Twisted can perform only rudimentary TLS client hostname verification. Many valid certificate/hostname mappings may be rejected.
Unhandled Error
Traceback (most recent call last):
File "/usr/local/lib/python2.7/dist-packages/twisted/application/app.py", line 648, in run
runApp(config)
File "/usr/local/lib/python2.7/dist-packages/twisted/scripts/twistd.py", line 25, in runApp
_SomeApplicationRunner(config).run()
File "/usr/local/lib/python2.7/dist-packages/twisted/application/app.py", line 379, in run
self.application = self.createOrGetApplication()
File "/usr/local/lib/python2.7/dist-packages/twisted/application/app.py", line 444, in createOrGetApplication
application = getApplication(self.config, passphrase)
--- <exception caught here> ---
File "/usr/local/lib/python2.7/dist-packages/twisted/application/app.py", line 455, in getApplication
application = service.loadApplication(filename, style, passphrase)
File "/usr/local/lib/python2.7/dist-packages/twisted/application/service.py", line 411, in loadApplication
passphrase)
File "/usr/local/lib/python2.7/dist-packages/twisted/persisted/sob.py", line 223, in loadValueFromFile
eval(codeObj, d, d)
File "master_player2.tac", line 25, in <module>
from shared import shared_types
exceptions.ImportError: No module named shared
Failed to load application: No module named shared
The failing statement is a first import directive that imports not standard or Twisted module, but module written by me. This statement is:
from shared import shared_types
“shared” is a folder located near master_player2.tac. It contains:
__init__.py which contains nothing but “#!/usr/bin/python” on the first line and a comment
shared_types.py
I attached master_player2.tac to this email, hope it is OK for mailing list. If it will not be received, I can upload it to some file sharing service.
If I run master_player2.tac as a normal python program:
python master_player2.tac
it runs without exceptions and even prints some traces from my code (but exits immediately instead of listening on TCP port).
Googling this problem didn’t help. I tried rewriting import statement and importing different modules in different locations, but it seems any module written by me causes ImportError, while standard and Twisted modules are imported without problems.
So I totally lost with this issue. Please help!
master_player2.tac
Description: Binary data
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