Installing PygraphViz on Windows, Python 2.6

Question

Anybody out there has successfully installed PygraphViz on Windows?

Since there is not an official release for Windows, I\'m trying to build it myself, but it fails

Answer 1

I managed to compile pygraphviz under windows with the following setup:

Windows 7, WinPython-32bit-2.7.6.3, Graphviz2.38, microsoft visual c++ 2008 express edition, pygraphvize 1.3 dev

in setup.py changed lines 35 and 36 to:

include_dirs = r"C:\Program Files\Graphviz2.38\include" library_dirs = r"C:\Program Files\Graphviz2.38\lib\release\lib"

The compilation works and you get a working pygraphviz python module.

Hopes this helps.

Answer 2

Here's what worked for me in Python 2.7. I assume it should work similarly in Python 2.6. Precondition: Install mingw32 (included in pythonxy distrib if you're using it), Graphviz

1) Download pygraphviz sources

2) Edit setup.py to change paths to smth like

library_path=r"c:\Program Files (x86)\Graphviz 2.28\bin"
include_path=r"c:\Program Files (x86)\Graphviz 2.28\include\graphviz"

Note that it's \bin, not \lib. Linking with libs didn't work for me.

3) run python setup.py build -c mingw32

Result of step 3:

c:\Python27\Lib\site-packages\pygraphviz-1.1>python setup.py build -c mingw32
library_path=c:\Program Files (x86)\Graphviz 2.28\bin
include_path=c:\Program Files (x86)\Graphviz 2.28\include\graphviz
running build
running build_py
running build_ext
building 'pygraphviz._graphviz' extension
C:\MinGW32-xy\bin\gcc.exe -mno-cygwin -mdll -O -Wall "-Ic:\Program Files (x86)\G
raphviz 2.28\include\graphviz" -Ic:\Python27\include -Ic:\Python27\PC -c pygraph
viz/graphviz_wrap.c -o build\temp.win32-2.7\Release\pygraphviz\graphviz_wrap.o
pygraphviz/graphviz_wrap.c: In function 'agattr_label':
pygraphviz/graphviz_wrap.c:2855:5: warning: return makes integer from pointer wi
thout a cast
writing build\temp.win32-2.7\Release\pygraphviz\_graphviz.def
C:\MinGW32-xy\bin\gcc.exe -mno-cygwin -shared -s build\temp.win32-2.7\Release\py
graphviz\graphviz_wrap.o build\temp.win32-2.7\Release\pygraphviz\_graphviz.def "
-Lc:\Program Files (x86)\Graphviz 2.28\bin" -Lc:\Python27\libs -Lc:\Python27\PCb
uild "-Wl,-Rc:\Program Files (x86)\Graphviz 2.28\bin" -lcgraph -lcdt -lpython27
-lmsvcr90 -o build\lib.win32-2.7\pygraphviz\_graphviz.pyd

4) copy the result from the just built lib.win32-2.7 (single sub-folder called pygraphviz) into your Python's site-packages folder

Enjoy!