NameError: name 'hasattr' is not defined - Python3.6, Django1.11, Ubuntu16-17, Apache2.4, mod_wsgi

user_1840601 0
Viewed 4981

I've set up my Python/Django virtual environment, and mod_wsgi in daemon mode, and am pretty sure (done this before) it's "mostly correct" except I get the following error... 

[Thu Jul 06 00:35:26.986363 2017] [mpm_event:notice] [pid 11442:tid 140557758930432] AH00493: SIGUSR1 received.  Doing graceful restart
Exception ignored in: <object repr() failed>
Traceback (most recent call last):
  File "/home/jamin/www/dev.tir.com/py361ve/lib/python3.6/site-packages/PIL/Image.py", line 572, in __del__
NameError: name 'hasattr' is not defined
[Thu Jul 06 00:35:27.194483 2017] [mpm_event:notice] [pid 11442:tid 140557758930432] AH00489: Apache/2.4.25 (Ubuntu) mod_wsgi/4.5.15 Python/3.6 configured -- resuming normal operations
[Thu Jul 06 00:35:27.194561 2017] [core:notice] [pid 11442:tid 140557758930432] AH00094: Command line: '/usr/sbin/apache2'

My django app itself is loading fine through wsgi.py but it seems something to do with core python (error with my setup likely) is going wrong as per: NameError: name 'hasattr' is not defined

In the browser - I get a plain "Server Error (500)" page and not the standard Apache "Internal Server Error" page.

Leaving out my VirtualHost and steps beyond here are the basic steps I put together for myself if you can spot anything... (I've tried all the different python packages as well not just -venv)

Install Python 3.6 and virtualenv
    sudo apt-get update
    sudo apt-get install python3.6-venv
    sudo apt-get install virtualenv
(or find the latest and greatest python package that includes pip https://packages.ubuntu.com/ )


Install Apache2
    sudo apt-get install apache2 apache2-dev


Make and enter a folder for your project - then build a Virtual Environment in it
    mkdir ~/example.com
    cd ~/example.com
    virtualenv --python=/usr/bin/python3.6 py361ve

Enter your new Virtual Environment to install packages to it
    source py361ve/bin/activate

Install Django, mod_wsgi, and any other needed packages
    pip install django
    pip install mod_wsgi
    pip install ...
(no need for pip3 in virtual environment - django should be the latest release)


Run following command and place output in apache config file ( in /etc/apache2/ )
    mod_wsgi-express module-config


Exit your virtual environment
    deactivate
(You can re-enter your virtual environment any time using the source method in step 8)

Here's what happens when I stop/start/restart apache2...

apache2 stop...

[Thu Jul 06 06:01:34.190940 2017] [mpm_event:notice] [pid 2015:tid 140157449797120] AH00491: caught SIGTERM, shutting down
_______________________________________________________________
apache2 start...

[Thu Jul 06 06:02:39.076741 2017] [mpm_event:notice] [pid 2181:tid 140553545080320] AH00489: Apache/2.4.25 (Ubuntu) mod_wsgi/4.5.15 Python/3.6 configured -- resuming $
[Thu Jul 06 06:02:39.076890 2017] [core:notice] [pid 2181:tid 140553545080320] AH00094: Command line: '/usr/sbin/apache2'
_______________________________________________________________
apache2 restart...

Exception ignored in: <object repr() failed>
Traceback (most recent call last):
  File "/home/jamin/www/dev.tir.com/py361ve/lib/python3.6/site-packages/PIL/Image.py", line 572, in __del__
NameError: name 'hasattr' is not defined
[Thu Jul 06 06:05:43.307877 2017] [mpm_event:notice] [pid 2181:tid 140553545080320] AH00491: caught SIGTERM, shutting down
[Thu Jul 06 06:05:43.492499 2017] [mpm_event:notice] [pid 2301:tid 140353155558912] AH00489: Apache/2.4.25 (Ubuntu) mod_wsgi/4.5.15 Python/3.6 configured -- resuming $
[Thu Jul 06 06:05:43.492705 2017] [core:notice] [pid 2301:tid 140353155558912] AH00094: Command line: '/usr/sbin/apache2'
mod-wsgi ubuntu python-3.x django python
3 Answers

I encountered the same problem as well.

[Wed Sep 12 16:30:19 2018] [notice] Apache/2.2.15 (Unix) DAV/2 mod_wsgi/4.6.4     
Python/3.6 configured -- resuming normal operations
Exception ignored in: <object repr() failed>
Traceback (most recent call last):
  File "/mnt/workshop/py36env/lib/python3.6/site-packages/PIL/Image.py", line 600, in __del__
NameError: name 'hasattr' is not defined
Exception ignored in: <object repr() failed>
Traceback (most recent call last):
  File "/mnt/workshop/py36env/lib/python3.6/site-packages/PIL/Image.py", line 600, in __del__
NameError: name 'hasattr' is not defined
Exception ignored in: <object repr() failed>
Traceback (most recent call last):
  File "/mnt/workshop/py36env/lib/python3.6/site-packages/PIL/Image.py", line 600, in __del__
NameError: name 'hasattr' is not defined
Exception ignored in: <object repr() failed>
Traceback (most recent call last):
  File "/mnt/workshop/py36env/lib/python3.6/site-packages/PIL/Image.py", line 600, in __del__
NameError: name 'hasattr' is not defined
Exception ignored in: <object repr() failed>
Traceback (most recent call last):
  File "/mnt/workshop/py36env/lib/python3.6/site-packages/PIL/Image.py", line 600, in __del__
NameError: name 'hasattr' is not defined
[Wed Sep 12 16:33:57 2018] [notice] caught SIGTERM, shutting down
[Wed Sep 12 16:33:58 2018] [notice] suEXEC mechanism enabled (wrapper: /usr/sbin/suexec)

It maybe happened when you made a new dir but never authorized.

And I fixed it by the following:

chmod -R 755 /mnt/workshop/your_project_path
chown -R apache:apache /mnt/workshop/your_project_path
user_103525830
Related