Question

How do I install The _imagingft C module inside a virtual environment?

I have a Python program that imports from PIL. It works from the command line.

When I import my program into a wsgi application program it gets past the importation of PIL, but says “The _imagingft C module is not installed”, on this line of my program:

    height = pt2px(font.getsize(test_string)[1])

My wsgi is running in a virtual environment under gunicorn as per one of your tutorials. Something in the virtual environment is different from the system functions, and I tried a lot of links to find out what, but I’m stuck.

How can I make sure my virtual environment has the same functions as the system?


Submit an answer

This textbox defaults to using Markdown to format your answer.

You can type !ref in this text area to quickly search our full set of tutorials, documentation & marketplace offerings and insert the link!

Sign In or Sign Up to Answer

These answers are provided by our Community. If you find them useful, show some love by clicking the heart. If you run into issues leave a comment, or add your own answer to help others.

Want to learn more? Join the DigitalOcean Community!

Join our DigitalOcean community of over a million developers for free! Get help and share knowledge in Q&A, subscribe to topics of interest, and get courses and tools that will help you grow as a developer and scale your project or business.

To ensure that all of your programs dependencies are available, you need to make sure to install them inside of the virtualenv. For example, let’s create a new virtualenv:

virtualenv my_app
source my_app/bin/activate
my_app/bin/pip install Pillow
deactivate

If you haven’t already, you also need to make sure the build dependencies for the native extension are installed. This can be done system-wide, outside of the virtualenv:

sudo apt-get install python-dev libjpeg-dev libjpeg8-dev libpng3 libfreetype6-dev