Salt pip fatal error: Python.h: No such file or directory

When installing salt using pip we get the error below. You will need to install the libraries and header files contained in the python-dev package using “apt-get install python-dev”

pip install salt
......
building 'Crypto.Hash._MD2' extension

creating build/temp.linux-x86_64-2.7

creating build/temp.linux-x86_64-2.7/src

x86_64-linux-gnu-gcc -pthread -fno-strict-aliasing -fwrapv -Wall -Wstrict-prototypes -fPIC -std=c99 -O3 -fomit-frame-pointer -Isrc/ -I/usr/include/python2.7 -c src/MD2.c -o build/temp.linux-x86_64-2.7/src/MD2.o

src/MD2.c:31:20: fatal error: Python.h: No such file or directory

 #include "Python.h"

                    ^

compilation terminated.

error: command 'x86_64-linux-gnu-gcc' failed with exit status 1

----------------------------------------
Cleaning up...
Command /usr/bin/python -c "import setuptools, tokenize;__file__='/tmp/pip_build_root/pycrypto/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /tmp/pip-AkUr53-record/install-record.txt --single-version-externally-managed --compile failed with error code 1 in /tmp/pip_build_root/pycrypto
Traceback (most recent call last):
  File "/usr/bin/pip", line 9, in 
    load_entry_point('pip==1.5.4', 'console_scripts', 'pip')()
  File "/usr/lib/python2.7/dist-packages/pip/__init__.py", line 235, in main
    return command.main(cmd_args)
  File "/usr/lib/python2.7/dist-packages/pip/basecommand.py", line 161, in main
    text = '\n'.join(complete_log)
UnicodeDecodeError: 'ascii' codec can't decode byte 0xe2 in position 42: ordinal not in range(128)