copying src/cryptography/hazmat/backends/openssl/utils.py -> build/lib.linux-x86_64-3.4/cryptography/hazmat/backends/openssl
    copying src/cryptography/hazmat/backends/openssl/hashes.py -> build/lib.linux-x86_64-3.4/cryptography/hazmat/backends/openssl
    copying src/cryptography/hazmat/backends/openssl/rsa.py -> build/lib.linux-x86_64-3.4/cryptography/hazmat/backends/openssl
    copying src/cryptography/hazmat/backends/openssl/__init__.py -> build/lib.linux-x86_64-3.4/cryptography/hazmat/backends/openssl
    running egg_info
    writing dependency_links to src/cryptography.egg-info/dependency_links.txt
    writing requirements to src/cryptography.egg-info/requires.txt
    writing src/cryptography.egg-info/PKG-INFO
    writing entry points to src/cryptography.egg-info/entry_points.txt
    writing top-level names to src/cryptography.egg-info/top_level.txt
    warning: manifest_maker: standard file '-c' not found

    reading manifest file 'src/cryptography.egg-info/SOURCES.txt'
    reading manifest template 'MANIFEST.in'
    no previously-included directories found matching 'docs/_build'
    warning: no previously-included files matching '*' found under directory 'vectors'
    writing manifest file 'src/cryptography.egg-info/SOURCES.txt'
    running build_ext
    generating cffi module 'build/temp.linux-x86_64-3.4/_padding.c'
    creating build/temp.linux-x86_64-3.4
    generating cffi module 'build/temp.linux-x86_64-3.4/_constant_time.c'
    generating cffi module 'build/temp.linux-x86_64-3.4/_openssl.c'
    building '_openssl' extension
    creating build/temp.linux-x86_64-3.4/build
    creating build/temp.linux-x86_64-3.4/build/temp.linux-x86_64-3.4
    gcc -pthread -Wno-unused-result -DDYNAMIC_ANNOTATIONS_ENABLED=1 -DNDEBUG -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -
m64 -mtune=generic -D_GNU_SOURCE -fPIC -fwrapv -fPIC -I/usr/include/python3.4m -c build/temp.linux-x86_64-3.4/_openssl.c -o build/temp.linux-x86_64-3.4/build/temp.linux-x86_64-3.4/_openssl.o
    build/temp.linux-x86_64-3.4/_openssl.c:12:24: fatal error: pyconfig.h: No such file or directory
     #  include <pyconfig.h>
                            ^
    compilation terminated.
    error: command 'gcc' failed with exit status 1

    ----------------------------------------
Command "/usr/bin/python3.4 -u -c "import setuptools, tokenize;__file__='/tmp/pip-build-blicjn05/cryptography/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __
file__, 'exec'))" install --record /tmp/pip-j7zv2e4a-record/install-record.txt --single-version-externally-managed --compile" failed with error code 1 in /tmp/pip-build-blicjn05/cryptography/
You are using pip version 8.1.2, however version 9.0.1 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.
The command '/bin/sh -c pip3 install -r requirements.txt' returned a non-zero code: 1