When deploying my project through Apache wsgi, using a virtualenv on Ubuntu Server VM, I get the following on error on /var/log/apache2/error.log:
ImportError: Photologue was unable to import Python Imaging Library. Please confirm it's installed and available on your current Python path.
Setup:
Django==1.6.6
django-photologue==2.3
Pillow==2.5.1
However, I have been able to run the project with the same configuration in Ubuntu Desktop VM (for development). For Ubuntu Server VM I followed the same procedure:
Installed dependent image libraries (libjpeg8-dev, etc) through apt-get
pip install pillow, in virtualenv, it showed --- JPEG support available
Ran this with no problems:
manage.py shell
from PIL import Image
im = Image.open("file.jpg")
im.show()
Used django's server with no problem, it showed the login screen:
manage.py runserver
For sanity's sake, I uninstalled pillow, running manage.py runserver showed the same import error. I reinstalled pillow and the error went away in the django server
Now, the issues arise when I try to access the website on the browser through apache. I go to the servername to get the actual django website and keep getting a 500 Internal Server Error on the browser and the import error on apache log.
The only thing I can think of is that in manage.py shell I can't do "import Image". However, photologue has a try/except import in which it will do "from PIL import Image" in case of an exception with "import Image", which covers that case.
I found the answer, posting it here since it was not entirely obvious.
This is a more subtle case of PIL not being able to link against the directories in apt-get. The answer from the ubuntu forums solves this issue.
sudo ln -s /lib/x86_64-linux-gnu/libz.so.1 /lib/
sudo ln - /usr/lib/x86_64-linux-gnu/libfreetype.so.6 /usr/lib/
sudo ln -s /usr/lib/x86_64-linux-gnu/libjpeg.so.62 /usr/lib/
However, I was not able to run the django proyect with pillow. I had to use PIL, which is annoying:
pip uninstall pillow
pip install PIL --allow-external PIL --allow-unverified PIL
Related
UPDATE 1: PIL and RDKIT produced import errors because the .dll files were not placed in /venv//Lib/site-packages
I removed both packages from environment and commented out their code from my project.
Next I updated the base base environment:
conda update conda #from base env
Then I upgraded pip and setuptools and reinstalled pillow:
python -m pip install pip --upgrade
pip install setuptools --upgrade
pip install pillow
I can now add my PIL content back to the project and it will work just fine on the production server, without rdkit installed.
RDKIT is only available as a conda install, it still does not install properly and breaks PIL in the process(rdkit depends on pillow). I have reinstalled from both the rdkit and conda-forge channels. Neither work.
What is the proper way to fix this problem? I feel like the hack around of moving .dll files is risky and not a good solution.
UPDATE 0: RDKIT will not load into any server
I created a basic django project similar to what you would find in the tutorial with no static files. The project successfully published to the Apache server describe below in the original post and in Windows 10 IIS. Next modified the models.py to import rdkit and both servers gave the import error and the site would not display.
Original post:
RDKIT is the only package not loading into our production server.
We successfully set up a Wampserver to run Apache and host our Django project . . .but have to comment out all the code associated with rdkit for it to work. This inhibits many required features.
There were no issues using rdkit in Django's test server.
Primary wsgi error:
from .rdBase import rdkitVersion as __version__\r, referer: http://localhost/APP/
ImportError: DLL load failed: The specified module could not be found.\r, referer: http://localhost/APP/
Relevant packages and version details:
Windows 10
Django 2.2
Python 3.7
conda 4.8.2
rdkit 2019.09.3 conda-forge
Wampserver 3.2
Apache 2.4.41
mod-wsgi 4.7.1
postgresql 10
The methods in this blog describe how we setup the production server. With one minor change, we did not alter the httpd_vhosts.conf file and only setup the standard localhost.
The error is reproducible by trying to import rdkit(or one of its methods) into any file needed to host a web application in the described environment.
We found this 2016 thread on the rdkit sourceforge and it sounds like someone else was having a similar problem on a Linux system. This is our first time setting up a server and we have not been successful at translating the recommended fix from linux to windows. There was no follow up to know if the recommendation was attempted let alone successful.
These 2012 slides lend us to believe someone was trying to overcome a similar issue in linux (slide 9)
How would a package need to be altered to allow it to load into a webserver?
Thank you, we greatly appreciate your time and assistance.
I have been looking around for an answer to this question, but everywhere I see the advice of running a pip install flask-wtf in the virtual environment. The requirements have already been satisfied in mine, but for some reason I am getting a missing module error. I am working on a school project building a website using flask and would really appreciate the help. My import is:
from flask_wtf import Form`
When I try to run the install command I get a message that says the requirement is already satisfied, as shown in this image.
Based on the screenshot, your flask-wtf and friends are installed outside virtualenvs, in the system site-packages directory.
It'd be a good idea to uninstall those from the global site-packages directory (python3 -m pip uninstall flask-wtf wtforms flask jinja2 click werkzeug markupsafe itsdangerous), create and activate a virtualenv (python3 -m venv my_venv and ./my_venv/bin/activate), then reinstall the dependencies within the virtualenv.
I know that many have posted similar question however I tried most solution without success.
I'm trying to host a webpage with apache2 and django in python3.
In the error log I found ImportError: No module named 'django' when accessing the wsgi.pyfile, where I also added import sys, sys.version to confirm which python version is used and from the error log I can see that I'm running following python version 3.5.2 (default, Nov 23 2017, 16:37:01) [GCC 5.4.0 20160609].
When I run python3.5 I see that I uses the same python version and here I can run import django without any error!
EDIT: I checked django.__file__and saw that it was located in /home/USERNAME/.local/lib/python3.5/site-packages/django/init.py and that path /home/USERNAME/.local/lib/python3.5/site-packages wasn't in the sys.path that tried to run django. But adding it with sys.path.append(path) didn't help :(
Any thoughts what I might have messed up?
If you have Setup the whole configuration in VirtualEnv then , i suggest you to activate it by,
source /location to /env/bin activate
pip3 install django=version_id
or pip install django=version id
if you want to pass version id then its good or it will install the latest django from your repo.
Now test Django Version there.
Hope you will no get the error.
Location - means the path where env will be located in project directory, if you have followed the standard installation process of django or else you don't need, and version id- vesion of django framework.
I finally understood how to solve it! first I had to run pip3 uninstall django then run sudo pip3 install django.
I've been following a Django tutorial and initially created virtualenv and a requirements file in it. Project was halfway and in working state. Today I activated virtualenv successfully and tried python manage.py runserver to get error
ImportError: Couldn't import Django. Are you sure it's installed and available on your PYTHONPATH environment variable? Did you forget to activate a virtual environment?
I realized it's not finding Django and just to be sure checked my requirements.txt file (which confirmed right Django version). Tried to reinstall it from the file using pip3 install -r requirements.txt (tried using just pip too) to get another error --
ModuleNotFoundError: No module named 'pip'
It seems the environment is unable to find any of the modules. I tried to reinstall pip also just to be sure, but then it couldn't find apt-get command.
OS: Mac OSX El Capitan 10.11.6
Python: 3.6.2
Django: 1.10.3 (in requirements file)
Try running python -m ensurepip (or python3 -m ensurepip) to see if pip is already installed:
In most cases, end users of Python shouldn’t need to invoke this module directly (as pip should be bootstrapped by default), but it may be needed if installing pip was skipped when installing Python (or when creating a virtual environment) or after explicitly uninstalling pip.
I have loaded my django app onto Pythonanywhere and when running through my functions, I learned I cannot upload images through the Admin since I moved into production. I am getting this error:
Neither Pillow nor PIL could be imported: No module named 'Image'
Which from prior experience means Pillow isn't installed. So I opened a bash console and ran
pip3 install --user Pillow
and it said it installed correctly, and I did reload my app but it still doesn't work
(same error). What went wrong?
Thanks in advance, Conner
Also, I did see this question on their forums: https://www.pythonanywhere.com/forums/topic/1247/
UPDATE:
Tried uninstalling Pillow and re-installing, then restarting web server. Still not working.