matplotlib and numpy installation

[cesco]

Hi,

I wanted to install python, numpy and matplotlib on Linux Ubuntu.
I installed python with the following commands
../configure --enable-unicode=ucs4
make
make install
and then I installed numpy running
python setup.py install
Finally I came to matplotlib, that for the installation requires the
commands
python setup.py build
python setup.py install
but when I run the first (python setup.py build) I got the following
output that I copied partially below. What am I doing wrong? Can anyone
help?
I had previously another version of python located in usr/bin while the
current is in usr/local/bin. I guess I could remove the previous by the
deleting the relative folder and now if I run the command 'which
python' it actually says 'usr/local/bin/python' so I hope I done it
correctly. If not, how can I uninstall any previous version of python?
Do you think that somehow the error I get is caused by an unclean
removal of that previous version?

Thanks and regards
Francesco

Here follows the output:
-----------------------------------

GTK requires pygtk
TKAgg requires TkInter
GTKAgg requires pygtk
running build
running build_py
running build_ext
building 'matplotlib.backends._ns_backend_agg' extension
gcc options: '-pthread -fno-strict-aliasing -DNDEBUG -g -O3 -Wall
-Wstrict-prot\
otypes -fPIC'
compile options:
'-I/usr/local/lib/python2.4/site-packages/numpy/core/include -\
I/usr/include -I. -Isrc -Iswig -Iagg23/include -I. -I/usr/include -I.
-I/usr/lo\
cal/lib/python2.4/site-packages/numpy/core/include/freetype2
-I/usr/include/fre\
etype2 -I./freetype2 -Isrc/freetype2 -Iswig/freetype2
-Iagg23/include/freetype2\
-I./freetype2 -I/usr/include/freetype2 -I./freetype2
-I/usr/local/include/pyth\
on2.4 -c'
extra options: '-DSCIPY=1'
gcc: src/_image.cpp
src/_image.cpp:5:17: png.h: No such file or directory
In file included from /usr/local/include/python2.4/Python.h:8,
from src/_image.cpp:7:
/usr/local/include/python2.4/pyconfig.h:835:1: warning:
"_POSIX_C_SOURCE" redef\
ined
In file included from
/usr/include/c++/3.3/i486-linux/bits/os_defines.h:39,
from
/usr/include/c++/3.3/i486-linux/bits/c++config.h:35,
from /usr/include/c++/3.3/iostream:44,
from src/_image.cpp:1:
/usr/include/features.h:131:1: warning: this is the location of the
previous de\
finition
src/_image.cpp: In member function `Py::Object Image::write_png(const
Py::Tuple&)':
src/_image.cpp:626: error: `png_structp' undeclared (first use this
function)
src/_image.cpp:626: error: (Each undeclared identifier is reported only
once
for each function it appears in.)
src/_image.cpp:626: error: parse error before `;' token
src/_image.cpp:627: error: `png_infop' undeclared (first use this
function)
src/_image.cpp:628: error: aggregate `png_color_8_struct sig_bit' has
incomplete type and cannot be defined
src/_image.cpp:629: error: `png_uint_32' undeclared (first use this
function)
src/_image.cpp:629: error: parse error before `=' token
src/_image.cpp:632: error: `png_bytep' undeclared (first use this
function)
src/_image.cpp:632: error: `row_pointers' undeclared (first use this
function)
src/_image.cpp:632: error: parse error before `[' token
src/_image.cpp:634: error: `row' undeclared (first use this function)
src/_image.cpp:645: error: `png_ptr' undeclared (first use this
function)
src/_image.cpp:645: error: `PNG_LIBPNG_VER_STRING' undeclared (first
use this
function)
src/_image.cpp:645: error: `png_create_write_struct' undeclared (first
use this\

function)
src/_image.cpp:653: error: `info_ptr' undeclared (first use this
function)
src/_image.cpp:653: error: `png_create_info_struct' undeclared (first
use this
function)
src/_image.cpp:657: error: `png_destroy_write_struct' undeclared (first
use
this function)
src/_image.cpp:662: error: `setjmp' undeclared (first use this
function)
src/_image.cpp:670: error: `png_init_io' undeclared (first use this
function)
src/_image.cpp:673: error: `PNG_COLOR_TYPE_RGB_ALPHA' undeclared (first
use
this function)
src/_image.cpp:673: error: `PNG_INTERLACE_NONE' undeclared (first use
this
function)
src/_image.cpp:674: error: `PNG_COMPRESSION_TYPE_BASE' undeclared
(first use
this function)
....

 

[Travis E. Oliphant]

Hi,

I wanted to install python, numpy and matplotlib on Linux Ubuntu.
I installed python with the following commands
./configure --enable-unicode=ucs4
[snip]
running build_ext
building 'matplotlib.backends._ns_backend_agg' extension
gcc options: '-pthread -fno-strict-aliasing -DNDEBUG -g -O3 -Wall
-Wstrict-prot\
otypes -fPIC'
compile options:
'-I/usr/local/lib/python2.4/site-packages/numpy/core/include -\
I/usr/include -I. -Isrc -Iswig -Iagg23/include -I. -I/usr/include -I.
-I/usr/lo\
cal/lib/python2.4/site-packages/numpy/core/include/freetype2
-I/usr/include/fre\
etype2 -I./freetype2 -Isrc/freetype2 -Iswig/freetype2
-Iagg23/include/freetype2\
-I./freetype2 -I/usr/include/freetype2 -I./freetype2
-I/usr/local/include/pyth\
on2.4 -c'
extra options: '-DSCIPY=1'
gcc: src/_image.cpp
src/_image.cpp:5:17: png.h: No such file or directory

This is the source of the remaining errors....

On my system the "png.h" file comes from a libpng3-devel rpm

Perhaps you need to use apt-get to obtain the development package for png.

-Travis