Hi group,
Apologies for mailing again. But I have been trying to install pdb2pqr and have been unable to configure the software. I am giving the right path (see below) but it still is giving me an error. Could someone point out what I am doing wrong?

sudo ./configure
[sudo] password for rama:
checking build system type... i686-pc-linux-gnu
checking host system type... i686-pc-linux-gnu
checking target system type... i686-pc-linux-gnu
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for a thread-safe mkdir -p... /bin/mkdir -p
checking for gawk... no
checking for mawk... mawk
checking whether make sets $(MAKE)... yes
checking for g++... g++
checking for C++ compiler default output file name... a.out
checking whether the C++ compiler works... yes
checking whether we are cross compiling... no
checking for suffix of executables...
checking for suffix of object files... o
checking whether we are using the GNU C++ compiler... yes
checking whether g++ accepts -g... yes
checking for style of include used by make... GNU
checking dependency style of g++... gcc3
checking for python... /usr/bin/python
checking for python include directory... configure: error: Unable to find Python.h!
rama@Durga:~/Desktop/packages/pdb2pqr-1.4.0$ whereis python
python: /usr/bin/python2.6 /usr/bin/python2.5 /usr/bin/python2.6-dbg-config /usr/bin/python2.6-dbg /usr/bin/python /etc/python2.6 /etc/python2.5 /etc/python /usr/lib/python2.6 /usr/lib/python2.5 /usr/lib/python3.0 /usr/lib/python2.4 /usr/local/lib/python2.6 /usr/local/lib/python2.5 /usr/include/python2.6 /usr/include/python2.5_d /usr/include/python2.5 /usr/include/python2.6_d /usr/share/python /usr/share/man/man1/python.1.gz
rama@Durga:~/Desktop/packages/pdb2pqr-1.4.0$ sudo ./configure --with-python /usr/bin/python2.5
configure: WARNING: you should use --build, --host, --target
configure: WARNING: invalid host type: /usr/bin/python2.5
checking build system type... Invalid configuration `/usr/bin/python2.5': machine `/usr/bin/python2.5' not recognized
configure: error: /bin/bash config/config.sub /usr/bin/python2.5 failed