python-igraph install fails.

[se4u]

Hi folks, thanks for the great library. The following is my issue:

Running

 $ git clone https://github.com/igraph/python-igraph.git
 $ python setup.py install --user 

leads to the following compilation error in src/convert.h. I was able to do a pip install python-igraph however. It seems that the version of python-igraph available on pip does not contain the functionality of random_walk. So I guess that somehow the C core: 0.7.1.post6 is not compatible with the head of igraph-python. So probably the C core version that python-igraph tries to build should be bumped up? The log of the build is here

running build_ext
Cannot find the C core of igraph on this system using pkg-config.
We will now try to download and compile the C core from scratch.
Version number of the C core: 0.7.1.post6
We will also try: 0.7.1
Using temporary directory: /home/hltcoe/prastogi/data/python-igraph/tmp/igraph.mGUepB
Downloading igraph-0.7.1.tar.gz... 100.00%
Extracting igraph-0.7.1.tar.gz...
Configuring igraph...
building 'igraph._igraph' extension
creating build/temp.linux-x86_64-2.7
creating build/temp.linux-x86_64-2.7/src
gcc -pthread -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -fPIC -Iigraphcore/include -I/opt/anaconda/include/python2.7 -c src/igraphmodule.c -o build/temp.linux-x86_64-2.7/src/igraphmodule.o
In file included from src/igraphmodule.c:30:
src/convert.h:63: error: expected declaration specifiers or ‘...’ before ‘igraph_layout_grid_t’
src/convert.h:66: error: expected declaration specifiers or ‘...’ before ‘igraph_random_walk_stuck_t’
error: command 'gcc' failed with exit status 1

[ntamas]

Your hunch is correct; the head of python-igraph is compatible with the head of igraph itself, not with release 0.7.1. You can try the following:

python setup.py install --user --c-core-url https://github.com/igraph/igraph/archive/master.tar.gz

Let me know if it works for you.

[se4u]

This worked on the first try :)
Thanks a lot.

On 14-Jan-2016, at 3:50 PM, Tamás Nepusz wrote:

Your hunch is correct; the head of python-igraph is compatible with the head of igraph itself, not with release 0.7.1. You can try the following:

python setup.py install --user --c-core-url https://github.com/igraph/igraph/archive/master.tar.gz
Let me know if it works for you.

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