python.h not found when trying to install gevent-socketio

here is my error when I try to install gevent-socketio

Installing collected packages: gevent, greenlet
Running setup.py install for gevent
building ‘gevent.core’ extension
gcc -pthread -fno-strict-aliasing -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes >-fPIC -DLIBEV_EMBED=1 -DEV_COMMON= -DEV_CHECK_ENABLE=0 -DEV_CLEANUP_ENABLE=0 >-DEV_EMBED_ENABLE=0 -DEV_PERIODIC_ENABLE=0 -Ibuild/temp.linux-x86_64-2.7/libev -Ilibev >-I/usr/include/python2.7 -c gevent/gevent.core.c -o build/temp.linux-x86_64-2.7/gevent/gevent.core.o
gevent/gevent.core.c:17:20: 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=’/var/www/bleu/build/gevent/setup.py’;exec(compile(open(file).read().replace(‘rn’, ‘n’), file, ‘exec’))” install –single-version-externally-managed –record /tmp/pip-_kv6Fy-record/install-record.txt:
running install

running build

running build_py

running build_ext

building ‘gevent.core’ extension

gcc -pthread -fno-strict-aliasing -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fPIC > -DLIBEV_EMBED=1 -DEV_COMMON= -DEV_CHECK_ENABLE=0 -DEV_CLEANUP_ENABLE=0 -DEV_EMBED_ENABLE=0 -DEV_PERIODIC_ENABLE=0 -Ibuild/temp.linux-x86_64-2.7/libev -Ilibev -I/usr/include/python2.7 -c gevent/gevent.core.c -o build/temp.linux-x86_64-2.7/gevent/gevent.core.o

gevent/gevent.core.c:17:20: fatal error: Python.h: No such file or directory

compilation terminated.

error: command ‘gcc’ failed with exit status 1

Have you an idea how i can fix this?