q@varikonniemi-desktop:~$ sudo pip install -U rapid-spring
Downloading/unpacking rapid-spring
  Running setup.py egg_info for package rapid-spring

Downloading/unpacking bitarray (from rapid-spring)
  Running setup.py egg_info for package bitarray

Installing collected packages: rapid-spring, bitarray
  Running setup.py install for rapid-spring

    changing mode of /usr/local/bin/rapid to 755
    changing mode of /usr/local/bin/rapid-gui to 755
  Found existing installation: bitarray 0.3.5
    Uninstalling bitarray:
      Successfully uninstalled bitarray
  Running setup.py install for bitarray
    building 'bitarray._bitarray' extension
    gcc -pthread -fno-strict-aliasing -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fPIC -I/usr/include/python2.7 -c bitarray/_bitarray.c -o build/temp.linux-x86_64-2.7/bitarray/_bitarray.o
    bitarray/_bitarray.c:7:20: fatal error: Python.h: No such file or directory
    compilation terminated.
    error: command 'gcc' failed with exit status 1
    Complete output from command /usr/bin/python -c "import setuptools;__file__='/home/q/build/bitarray/setup.py';exec(compile(open(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --single-version-externally-managed --record /tmp/pip-Ojj8zw-record/install-record.txt:
    running install

running build

running build_py

running build_ext

building 'bitarray._bitarray' extension

gcc -pthread -fno-strict-aliasing -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fPIC -I/usr/include/python2.7 -c bitarray/_bitarray.c -o build/temp.linux-x86_64-2.7/bitarray/_bitarray.o

bitarray/_bitarray.c:7:20: fatal error: Python.h: No such file or directory

compilation terminated.

error: command 'gcc' failed with exit status 1

----------------------------------------
  Rolling back uninstall of bitarray
Command /usr/bin/python -c "import setuptools;__file__='/home/q/build/bitarray/setup.py';exec(compile(open(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --single-version-externally-managed --record /tmp/pip-Ojj8zw-record/install-record.txt failed with error code 1
Storing complete log in /home/q/.pip/pip.log