freeswitch python scripts errno 10 no child processes - python

I' ve got an issue when running freeswitch with some python scripts inside dialplan using django.db models. Whenever it starts it causes errors:
freeswitch#ubuntu> 2013-08-15 06:56:08.094348 [ERR] mod_python.c:231 Error importing module
2013-08-15 06:56:08.094348 [ERR] mod_python.c:164 Python Error by calling script "fs_scripts.ringback": <type 'exceptions.IOError'>
Message: [Errno 10] No child processes
Exception: None
Traceback (most recent call last)
File: "/home/piotrek/lettel/fs_scripts/ringback.py", line 19, in <module>
File: "/home/piotrek/lettel/api/call.py", line 3, in <module>
File: "/usr/local/lib/python2.7/dist-packages/django/db/__init__.py", line 11, in <module>
File: "/usr/local/lib/python2.7/dist-packages/django/utils/functional.py", line 184, in inner
File: "/usr/local/lib/python2.7/dist-packages/django/conf/__init__.py", line 42, in _setup
File: "/usr/local/lib/python2.7/dist-packages/django/conf/__init__.py", line 93, in __init__
File: "/usr/local/lib/python2.7/dist-packages/django/utils/importlib.py", line 35, in import_module
File: "/home/piotrek/lettel/lettel/settings.py", line 13, in <module>
File: "/usr/local/lib/python2.7/dist-packages/djcelery/__init__.py", line 25, in <module>
File: "/usr/local/lib/python2.7/dist-packages/celery/__compat__.py", line 135, in __getattr__
File: "/usr/local/lib/python2.7/dist-packages/celery/_state.py", line 19, in <module>
File: "/usr/local/lib/python2.7/dist-packages/celery/utils/__init__.py", line 22, in <module>
File: "/usr/local/lib/python2.7/dist-packages/kombu/entity.py", line 10, in <module>
File: "/usr/local/lib/python2.7/dist-packages/kombu/abstract.py", line 12, in <module>
File: "/usr/local/lib/python2.7/dist-packages/kombu/connection.py", line 24, in <module>
File: "/usr/local/lib/python2.7/dist-packages/kombu/log.py", line 8, in <module>
File: "/usr/local/lib/python2.7/dist-packages/kombu/utils/compat.py", line 68, in <module>
File: "/usr/lib/python2.7/platform.py", line 1337, in system
File: "/usr/lib/python2.7/platform.py", line 1304, in uname
File: "/usr/lib/python2.7/platform.py", line 1039, in _syscmd_uname
edit: the line that causes errors is a simple import from django.db:
from django.db import models
This whole setup is already running on some server that I dont have access to, so it seems to be nothing wrong with django app or scripts...
Any help would be appreciated cause I am running out of ideas how to solve this problem...

I dont know your performance and scalability requirements, despite that a softswitch have realtime requirements to run rtp stream and signalling. So is not a good solution run django applications under mod_python. Furthermore that is not the same as python interpreter directly, somethings does not work. You can check the mod_python issues here:
mod_python issues
I would advice you to split your python solution in a client/server architecture. The script running under mod_python will make queries to your Django application. That way you will get rid of the complexity in Freeswitch side, get scalable, improve performance and most probably get everything working OK.

Related

Importing requests in python gives error

I have a small python (2.7) script that works with several threads. One of the threads will read a global list and post an https post request for each one of the entries of this list.
For doing that I saw that the best way is to use python requests module. I have installed it with pip (no problem with that, it is placed in ...Python/2.7/site-packages/requests/...), but, when I import this module in my script, I get an error.
I have created another script with just one line (import requests) to reproduce the error, and I get this:
Traceback (most recent call last):
File "req.py", line 1, in <module>
import requests
File "/Library/Python/2.7/site-packages/requests/__init__.py", line 43, in <module>
import urllib3
File "/Library/Python/2.7/site-packages/urllib3/__init__.py", line 8, in <module>
from .connectionpool import (
File "/Library/Python/2.7/site-packages/urllib3/connectionpool.py", line 11, in <module>
from .exceptions import (
File "/Library/Python/2.7/site-packages/urllib3/exceptions.py", line 2, in <module>
from .packages.six.moves.http_client import (
File "/Library/Python/2.7/site-packages/urllib3/packages/six.py", line 203, in load_module
mod = mod._resolve()
File "/Library/Python/2.7/site-packages/urllib3/packages/six.py", line 115, in _resolve
return _import_module(self.mod)
File "/Library/Python/2.7/site-packages/urllib3/packages/six.py", line 82, in _import_module
__import__(name)
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/httplib.py", line 69, in <module>
from array import array
File "/Users/carlestalenssebastia/Documents/mychip/raspberry pi/array.py", line 3, in <module>
IndexError: list index out of range
Python 2.7.10
MacBook Pro with macOS Sierra (v 10.12)
Am I doing something wrong? Didn't I installed the module in the proper way?
it seems that you're having two modules with the same name array.py
rename your local array.py module to something more unique to resolve this.
take a look at this answer for more info on how to handle this issue and here to learn more on how python import system works.

EOFError randomly appeared while using PYTTSX and my code now constantly throws this error? It worked fine hours before

I was using PYTTSX yesterday with no issues at all - it was acting exactly as expected and working fine. However, when I tried to run the exact same code not two hours later it threw this error:
Traceback (most recent call last):
File "C:\Python27\FUCK.py", line 2, in <module>
engine = pyttsx.init()
File "C:\Python27\lib\site-packages\pyttsx\__init__.py", line 39, in init
eng = Engine(driverName, debug)
File "C:\Python27\lib\site-packages\pyttsx\engine.py", line 45, in __init__
self.proxy = driver.DriverProxy(weakref.proxy(self), driverName, debug)
File "C:\Python27\lib\site-packages\pyttsx\driver.py", line 64, in __init__
self._module = __import__(name, globals(), locals(), [driverName])
File "C:\Python27\lib\site-packages\pyttsx\drivers\sapi5.py", line 19, in <module>
import win32com.client
File "C:\Python27\lib\site-packages\win32com\client\__init__.py", line 11, in <module>
import gencache
File "C:\Python27\lib\site-packages\win32com\client\gencache.py", line 662, in <module>
__init__()
File "C:\Python27\lib\site-packages\win32com\client\gencache.py", line 56, in __init__
_LoadDicts()
File "C:\Python27\lib\site-packages\win32com\client\gencache.py", line 109, in _LoadDicts
version = p.load()
EOFError
and it has been throwing this error ever since. The code which was working fine before hasn't been changed at all, and the same code works fine on my Linux partition, this error seems to be windows exclusive. Any idea what it could be?
It is a simple procedure:
Go to python27 folder
Search for dicts.dat
Delete that folder
It will work because I have done it

accees to ndb model from behave

I assume this might be impossible but I've been wondering...
I'm building a flask application (running on google app engine)
and i'm using behave as the BDD tool.
it all works well if I keep everything separated through the browser automation.
what I want is to have a peek at the data structure (in my case, so I can check my simulated users attributes). when I try to :
from application.models import MyUserModel
I get the following error
File "/usr/local/bin/behave", line 8, in <module>
load_entry_point('behave==1.2.3', 'console_scripts', 'behave')()
File "/Library/Python/2.7/site-packages/behave/__main__.py", line 111, in main
failed = runner.run()
File "/Library/Python/2.7/site-packages/behave/runner.py", line 474, in run
return self.run_with_paths()
File "/Library/Python/2.7/site-packages/behave/runner.py", line 477, in run_with_paths
self.load_hooks()
File "/Library/Python/2.7/site-packages/behave/runner.py", line 437, in load_hooks
exec_file(hooks_path, self.hooks)
File "/Library/Python/2.7/site-packages/behave/runner.py", line 283, in exec_file
execfile(filename, globals, locals)
File "/Users/ido/Documents/workspace/talknet-0.2.02/src/features/environment.py", line 13, in <module>
import application
File "/Users/ido/Documents/workspace/talknet-0.2.02/src/application/__init__.py", line 1, in <module>
from flask import g, Flask, render_template
File "/Users/ido/Documents/workspace/talknet-0.2.02/src/lib/flask/__init__.py", line 19, in <module>
from jinja2 import Markup, escape
ImportError: No module named jinja2
I know my features and steps are not running in appserver context.
but I'm not there yet. this is an import issue...
is there a way around this ???
To fix the exception in the example you provided add:
libraries:
- name: jinja2
version: latest
To your app.yaml file.
See more info here: https://cloud.google.com/appengine/docs/python/tools/libraries27

lightblue Python module not working on mac

I'm trying to connect to wiimote via Python on mac osx 10.7.2.
For that I'm trying to use lightblue. When running: import lightblue Python gives me this error.
>>> import lightblue
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/lightblue/__init__.py", line 160, in <module>
from _lightblue import *
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/lightblue/_lightblue.py", line 27, in <module>
import _IOBluetooth
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/lightblue/_IOBluetooth.py", line 47, in <module>
globals=globals())
File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/PyObjC/objc/_bridgesupport.py", line 142, in initFrameworkWrapper
_parseBridgeSupport(data, globals, frameworkName)
File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/PyObjC/objc/_bridgesupport.py", line 42, in _parseBridgeSupport
objc.parseBridgeSupport(data, globals, frameworkName, *args, **kwds)
ValueError: cftype for 'IOBluetoothDeviceInquiryRef' must include gettypeid_func, tollfree or both
I found one with a similar problem here: http://python.6.n6.nabble.com/Python-bridgesupport-issue-on-Lion-td2161049.html#a32196961 but the answer doesn't help me much, since it seems to me that it is already using lightblue's files. Any suggestions?
Seems like a bug with Apple's gen_bridge_metadata script. You can make the error go away by editing the generated file by hand.
Open up /System/Library/Frameworks/IOBluetooth.framework/Versions/Current/Resources/BridgeSupport/IOBluetooth.bridgesupport and delete the lines that start with <cftype.

django module already import and python egg warnings

Can anyone help me get rid of these warnings in Django please?
/usr/lib/python2.6/site-packages/simplejson-2.1.5-py2.6-linux-x86_64.egg/simplejson/_speedups.py:3: UserWarning: Module taggit was already imported from /var/www/html/matilah/taggit/__init__.py, but /usr/lib/python2.6/site-packages/django_taggit-0.9.3-py2.6.egg is being added to sys.path
Traceback (most recent call last):
File "manage.py", line 11, in <module>
execute_manager(settings)
File "/usr/lib/python2.6/site-packages/django/core/management/__init__.py", line 438, in execute_manager
utility.execute()
File "/usr/lib/python2.6/site-packages/django/core/management/__init__.py", line 379, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/usr/lib/python2.6/site-packages/django/core/management/__init__.py", line 261, in fetch_command
klass = load_command_class(app_name, subcommand)
File "/usr/lib/python2.6/site-packages/django/core/management/__init__.py", line 67, in load_command_class
module = import_module('%s.management.commands.%s' % (app_name, name))
File "/usr/lib/python2.6/site-packages/django/utils/importlib.py", line 35, in import_module
__import__(name)
File "/usr/lib/python2.6/site-packages/haystack/__init__.py", line 154, in <module>
handle_registrations()
File "/usr/lib/python2.6/site-packages/haystack/__init__.py", line 151, in handle_registrations
search_sites_conf = importlib.import_module(settings.HAYSTACK_SITECONF)
File "/usr/lib/python2.6/site-packages/django/utils/importlib.py", line 35, in import_module
__import__(name)
File "/var/www/html/matilah/search_sites.py", line 2, in <module>
haystack.autodiscover()
File "/usr/lib/python2.6/site-packages/haystack/__init__.py", line 106, in autodiscover
app_path = importlib.import_module(app).__path__
File "/usr/lib/python2.6/site-packages/django/utils/importlib.py", line 35, in import_module
__import__(name)
File "/var/www/html/matilah/disqus/__init__.py", line 5, in <module>
from django.utils import simplejson as json
File "/usr/lib/python2.6/site-packages/django/utils/simplejson/__init__.py", line 111, in <module>
import simplejson
File "/usr/lib/python2.6/site-packages/simplejson-2.1.5-py2.6-linux-x86_64.egg/simplejson/__init__.py", line 111, in <module>
File "/usr/lib/python2.6/site-packages/simplejson-2.1.5-py2.6-linux-x86_64.egg/simplejson/decoder.py", line 7, in <module>
File "/usr/lib/python2.6/site-packages/simplejson-2.1.5-py2.6-linux-x86_64.egg/simplejson/scanner.py", line 10, in <module>
File "/usr/lib/python2.6/site-packages/simplejson-2.1.5-py2.6-linux-x86_64.egg/simplejson/scanner.py", line 6, in _import_c_make_scanner
File "/usr/lib/python2.6/site-packages/simplejson-2.1.5-py2.6-linux-x86_64.egg/simplejson/_speedups.py", line 7, in <module>
File "/usr/lib/python2.6/site-packages/simplejson-2.1.5-py2.6-linux-x86_64.egg/simplejson/_speedups.py", line 4, in __bootstrap__
File "/usr/lib/python2.6/site-packages/pkg_resources.py", line 841, in resource_filename
self, resource_name
File "/usr/lib/python2.6/site-packages/pkg_resources.py", line 1310, in get_resource_filename
self._extract_resource(manager, self._eager_to_zip(name))
File "/usr/lib/python2.6/site-packages/pkg_resources.py", line 1332, in _extract_resource
self.egg_name, self._parts(zip_path)
File "/usr/lib/python2.6/site-packages/pkg_resources.py", line 921, in get_cache_path
self.extraction_error()
File "/usr/lib/python2.6/site-packages/pkg_resources.py", line 887, in extraction_error
raise err
pkg_resources.ExtractionError: Can't extract file(s) to egg cache
The following error occurred while trying to extract file(s) to the Python egg
cache:
[Errno 13] Permission denied: '/home/interworx/.python-eggs'
The Python egg cache directory is currently set to:
/home/interworx/.python-eggs
Perhaps your account does not have write access to this directory? You can
change the cache directory by setting the PYTHON_EGG_CACHE environment
variable to point to an accessible directory.
I'm not sure if the "Module was already imported" error has to do with the "cannot extract PYTHON EGG" error.
In my WSGI I already have the following line os.environ['PYTHON_EGG_CACHE'] = rel('python-eggs') and I know for sure that works. Otherwise WSGI won't load my app. So I'm not sure what to do here.
Thanks!
When you get a message like "Perhaps your account does not have write access to this directory?" it's best to do a quick test. Try changing it to "/tmp" (which is writable by everyone) and see if things start working. If that fixes it, you can then identify a more appropriate directory and make sure that you (or the server) have write access to it.
Update: You are correct in choosing to tackle the earliest error message first. Here is a quick utility, Python Module Dump, that I wrote a few years ago for tracking down a mis-included module error. You might try inserting it at interesting points along your initialization code path and see if you can spot when the earlier import occurred.
There's a chance that your initial problem "Module was already imported" does in fact have to do with the permissions error you have going. Your best option would be to fix the permissions/ownership settings on the /home/interworx/.python-eggs directory (as stated by Peter Rowell above).
I came across this great little refresher on permissions today at the Google Code University. Wouldn't hurt to skim through this when you have some time: http://code.google.com/edu/tools101/linux/ownership_permissions.html
Just read the comments above here is my thoughts:
I think the problem is that the .wsgi file is not setting the environment variable in time. Can you please post your .wsgi file? Also, how are you grabbing the packages? Is it a script? Manually via pip?

Categories