Enable to use django-extensions with pygraphviz

I'm trying to use pygraphviz und开发者_如何学Pythoner Ubuntu 10.04 within my Django projects.

I used synaptic and it was installed without any problem.

I also installed django-extensions with synaptic (django-extensions has a tool that uses pygraphviz and this is the one that I need)

Now when I try to use django-extensions with pygraphviz

$ python manage.py graph_models -a -g -o model.png

I'm getting an

Error: need pygraphviz python module ( apt-get install python-pygraphviz )

How can I fix this ?

I was facing the same problem on an Ubuntu 14.04 machine and I solved it installing the missing packages as follows:

sudo apt-get install graphviz-dev
sudo pip install pygraphviz

I had the similar issue. I was able to install django-extensions but pygraphviz was giving error.

To install pygraphviz I first installed the requirement using

sudo apt-get update
sudo apt-get install graphviz-dev

Then used the following command

Python2

sudo pip install pygraphviz

Python3

sudo pip3 install pygraphviz

After installing it globally I again installed it in virtual environment using

pip install pygraphviz   #---> python2
pip3 install pygraphviz  #---> python3

Just install python-pygraphviz with synaptic the same way you did pygraphvis and django-extensions.

On mac, I got same errors too. I was using a Virtualenv, but this shouldn't change the procedure.

This is what I did:

brew install graphviz

pip install python-pygraphviz

Now, I have installed pygraphviz from source.

May be you can do this too: pip install pygraphviz

and then when I did python manage.py graph_models -a -o polls_models.png, it worked.

First I run
$python manage.py graph_models -a -g -o model_vi.png

But I get an error!
Error: You need to install pygraphviz python module

I tried this
$sudo easy_install pygraphviz

But again I get an error
unable to install pygraphviz with easy_install

Later I tried this;
$brew install graphviz

If you get an error in this section you try
$brew doctor

And then;

You can run the real command.
$python manage.py graph_models -a -g -o model_vi.png

It works fine. Hope yours work fine!

apt-get install python-pygraphviz 

read the error... i tried apt-get solution and works fine

you can also try with

sudo easy_install pygraphviz 

(i suppose you have pip / easy_install on your computer)