End of script output before headers: wsgi.py - django

Question

I am trying to install my django project with Apache, mod_wsgi and python3. but Apache still gives this error:
Exception ignored in: <module 'threading' from '/usr/lib/python3.4/threading.py'>
Traceback (most recent call last):
File "/usr/lib/python3.4/threading.py", line 1288, in _shutdown
assert tlock is not None
AssertionError:
End of script output before headers: wsgi.py
I lost two days trying to fix this problem, I know that this error can be produced by several reasons but I not find where the problem.
Here the wsgi.py content:
#!/usr/bin/python3
# -*- coding: utf-8 -*-
import os
import site, sys
path = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
if path not in sys.path:
sys.path.append(path)
sys.path.append('/var/www/myproject/myproject_env/bin/python3.4/dist-packages')
site.addsitedir('/var/www/myproject/myproject_env/bin/python3.4/dist-packages')
os.environ["DJANGO_SETTINGS_MODULE"] = "myproject.settings"
from django.core.wsgi import get_wsgi_application
application = get_wsgi_application()
The Apache configuration is as follows:
<VirtualHost *:80>
ServerName mydomain.com
ServerAlias www.mydomain.com
DocumentRoot /var/www
Alias /static/ /var/www/myproject/static/
Alias /static/admin/ /var/www/myproject/static/admin/
Alias /uploads/ /var/www/myproject/uploads/
WSGIDaemonProcess myproject lang='fr_FR.UTF-8' locale='fr_FR.UTF-8' python-path=/var/www/myproject:/var/www/myproject/myproject_env/bin/python3.4/dist-packages
WSGIProcessGroup myproject
WSGIScriptAlias / /var/www/myproject/myproject/wsgi.py
WSGIApplicationGroup %{GLOBAL}
<Directory "/var/www/myproject/myproject/">
Require all granted
</Directory>
<Directory "/var/www/myproject/myproject/wsgi.py">
AllowOverride None
Options +ExecCGI -MultiViews +SymLinksIfOwnerMatch
Require all granted
</Directory>
<Directory /static/admin/>
Require all granted
</Directory>
<Location "/uploads/">
SetHandler None
</Location>
ErrorLog /var/log/apache2/myproject.log
CustomLog /var/log/apache2/myproject.access.log combined
</VirtualHost>
Please anyone helps me fix this?

Answer 1

Solved: I changed the location of my Django project to another folder in a new linux account. I think (and I'm not really sure) the error occurred because /var/www contains another python project using cgi-bin, this maybe creates conflict with my Django project.