pip install errors

root@dlkit-i2c:/home/docker/code/gstudio/gnowsys-ndf/qbank-lite# pip install cffi==1.7.0
Downloading/unpacking cffi==1.7.0
  Downloading cffi-1.7.0.tar.gz (400kB): 400kB downloaded
  Running setup.py (path:/tmp/pip_build_root/cffi/setup.py) egg_info for package cffi
    
Requirement already satisfied (use --upgrade to upgrade): pycparser in /usr/local/lib/python2.7/dist-packages (from cffi==1.7.0)
Installing collected packages: cffi
  Running setup.py install for cffi
    building '_cffi_backend' extension
    x86_64-linux-gnu-gcc -pthread -fno-strict-aliasing -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fPIC -DUSE__THREAD -I/usr/include/ffi -I/usr/include/libffi -I/usr/include/python2.7 -c c/_cffi_backend.c -o build/temp.linux-x86_64-2.7/c/_cffi_backend.o
    c/_cffi_backend.c:15:17: fatal error: ffi.h: No such file or directory
     #include <ffi.h>
                     ^
    compilation terminated.
    error: command 'x86_64-linux-gnu-gcc' failed with exit status 1
    Complete output from command /usr/bin/python -c "import setuptools, tokenize;__file__='/tmp/pip_build_root/cffi/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /tmp/pip-M3zqcW-record/install-record.txt --single-version-externally-managed --compile:
    running install

running build

running build_py

creating build

creating build/lib.linux-x86_64-2.7

creating build/lib.linux-x86_64-2.7/cffi

copying cffi/setuptools_ext.py -> build/lib.linux-x86_64-2.7/cffi

copying cffi/__init__.py -> build/lib.linux-x86_64-2.7/cffi

copying cffi/commontypes.py -> build/lib.linux-x86_64-2.7/cffi

copying cffi/recompiler.py -> build/lib.linux-x86_64-2.7/cffi

copying cffi/backend_ctypes.py -> build/lib.linux-x86_64-2.7/cffi

copying cffi/lock.py -> build/lib.linux-x86_64-2.7/cffi

copying cffi/cffi_opcode.py -> build/lib.linux-x86_64-2.7/cffi

copying cffi/ffiplatform.py -> build/lib.linux-x86_64-2.7/cffi

copying cffi/cparser.py -> build/lib.linux-x86_64-2.7/cffi

copying cffi/api.py -> build/lib.linux-x86_64-2.7/cffi

copying cffi/verifier.py -> build/lib.linux-x86_64-2.7/cffi

copying cffi/vengine_cpy.py -> build/lib.linux-x86_64-2.7/cffi

copying cffi/vengine_gen.py -> build/lib.linux-x86_64-2.7/cffi

copying cffi/model.py -> build/lib.linux-x86_64-2.7/cffi

copying cffi/_cffi_include.h -> build/lib.linux-x86_64-2.7/cffi

copying cffi/parse_c_type.h -> build/lib.linux-x86_64-2.7/cffi

copying cffi/_embedding.h -> build/lib.linux-x86_64-2.7/cffi

running build_ext

building '_cffi_backend' extension

creating build/temp.linux-x86_64-2.7

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

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

c/_cffi_backend.c:15:17: fatal error: ffi.h: No such file or directory

 #include <ffi.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/cffi/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /tmp/pip-M3zqcW-record/install-record.txt --single-version-externally-managed --compile failed with error code 1 in /tmp/pip_build_root/cffi
Storing debug log for failure in /root/.pip/pip.log












root@dlkit-i2c:/home/docker/code/gstudio/gnowsys-ndf/qbank-lite# pip install cryptography==1.4
Downloading/unpacking cryptography==1.4
  Downloading cryptography-1.4.tar.gz (399kB): 399kB downloaded
  Running setup.py (path:/tmp/pip_build_root/cryptography/setup.py) egg_info for package cryptography
    
    no previously-included directories found matching 'docs/_build'
    warning: no previously-included files matching '*' found under directory 'vectors'
Requirement already satisfied (use --upgrade to upgrade): idna>=2.0 in /usr/local/lib/python2.7/dist-packages (from cryptography==1.4)
Requirement already satisfied (use --upgrade to upgrade): pyasn1>=0.1.8 in /usr/local/lib/python2.7/dist-packages (from cryptography==1.4)
Requirement already satisfied (use --upgrade to upgrade): six>=1.4.1 in /usr/lib/python2.7/dist-packages (from cryptography==1.4)
Downloading/unpacking setuptools>=11.3 (from cryptography==1.4)
  Downloading setuptools-34.1.1-py2.py3-none-any.whl (389kB): 389kB downloaded
Requirement already satisfied (use --upgrade to upgrade): enum34 in /usr/local/lib/python2.7/dist-packages (from cryptography==1.4)
Requirement already satisfied (use --upgrade to upgrade): ipaddress in /usr/local/lib/python2.7/dist-packages (from cryptography==1.4)
Downloading/unpacking cffi>=1.4.1 (from cryptography==1.4)
  Downloading cffi-1.9.1.tar.gz (407kB): 407kB downloaded
  Running setup.py (path:/tmp/pip_build_root/cffi/setup.py) egg_info for package cffi
    
Requirement already satisfied (use --upgrade to upgrade): appdirs>=1.4.0 in /usr/local/lib/python2.7/dist-packages (from setuptools>=11.3->cryptography==1.4)
Requirement already satisfied (use --upgrade to upgrade): packaging>=16.8 in /usr/local/lib/python2.7/dist-packages (from setuptools>=11.3->cryptography==1.4)
Requirement already satisfied (use --upgrade to upgrade): pycparser in /usr/local/lib/python2.7/dist-packages (from cffi>=1.4.1->cryptography==1.4)
Installing collected packages: cryptography, setuptools, cffi
  Running setup.py install for cryptography
    c/_cffi_backend.c:15:17: fatal error: ffi.h: No such file or directory
     #include <ffi.h>
                     ^
    compilation terminated.
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "/tmp/pip_build_root/cryptography/setup.py", line 333, in <module>
        **keywords_with_side_effects(sys.argv)
      File "/usr/lib/python2.7/distutils/core.py", line 111, in setup
        _setup_distribution = dist = klass(attrs)
      File "/usr/lib/python2.7/dist-packages/setuptools/dist.py", line 239, in __init__
        self.fetch_build_eggs(attrs.pop('setup_requires'))
      File "/usr/lib/python2.7/dist-packages/setuptools/dist.py", line 264, in fetch_build_eggs
        replace_conflicting=True
      File "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 620, in resolve
        dist = best[req.key] = env.best_match(req, ws, installer)
      File "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 858, in best_match
        return self.obtain(req, installer) # try and download/install
      File "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 870, in obtain
        return installer(requirement)
      File "/usr/lib/python2.7/dist-packages/setuptools/dist.py", line 314, in fetch_build_egg
        return cmd.easy_install(req)
      File "/usr/lib/python2.7/dist-packages/setuptools/command/easy_install.py", line 616, in easy_install
        return self.install_item(spec, dist.location, tmpdir, deps)
      File "/usr/lib/python2.7/dist-packages/setuptools/command/easy_install.py", line 646, in install_item
        dists = self.install_eggs(spec, download, tmpdir)
      File "/usr/lib/python2.7/dist-packages/setuptools/command/easy_install.py", line 834, in install_eggs
        return self.build_and_install(setup_script, setup_base)
      File "/usr/lib/python2.7/dist-packages/setuptools/command/easy_install.py", line 1040, in build_and_install
        self.run_setup(setup_script, setup_base, args)
      File "/usr/lib/python2.7/dist-packages/setuptools/command/easy_install.py", line 1028, in run_setup
        raise DistutilsError("Setup script exited with %s" % (v.args[0],))
    distutils.errors.DistutilsError: Setup script exited with error: command 'x86_64-linux-gnu-gcc' failed with exit status 1
    Complete output from command /usr/bin/python -c "import setuptools, tokenize;__file__='/tmp/pip_build_root/cryptography/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /tmp/pip-xq1Yho-record/install-record.txt --single-version-externally-managed --compile:
    c/_cffi_backend.c:15:17: fatal error: ffi.h: No such file or directory

 #include <ffi.h>

                 ^

compilation terminated.

Traceback (most recent call last):

  File "<string>", line 1, in <module>

  File "/tmp/pip_build_root/cryptography/setup.py", line 333, in <module>

    **keywords_with_side_effects(sys.argv)

  File "/usr/lib/python2.7/distutils/core.py", line 111, in setup

    _setup_distribution = dist = klass(attrs)

  File "/usr/lib/python2.7/dist-packages/setuptools/dist.py", line 239, in __init__

    self.fetch_build_eggs(attrs.pop('setup_requires'))

  File "/usr/lib/python2.7/dist-packages/setuptools/dist.py", line 264, in fetch_build_eggs

    replace_conflicting=True

  File "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 620, in resolve

    dist = best[req.key] = env.best_match(req, ws, installer)

  File "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 858, in best_match

    return self.obtain(req, installer) # try and download/install

  File "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 870, in obtain

    return installer(requirement)

  File "/usr/lib/python2.7/dist-packages/setuptools/dist.py", line 314, in fetch_build_egg

    return cmd.easy_install(req)

  File "/usr/lib/python2.7/dist-packages/setuptools/command/easy_install.py", line 616, in easy_install

    return self.install_item(spec, dist.location, tmpdir, deps)

  File "/usr/lib/python2.7/dist-packages/setuptools/command/easy_install.py", line 646, in install_item

    dists = self.install_eggs(spec, download, tmpdir)

  File "/usr/lib/python2.7/dist-packages/setuptools/command/easy_install.py", line 834, in install_eggs

    return self.build_and_install(setup_script, setup_base)

  File "/usr/lib/python2.7/dist-packages/setuptools/command/easy_install.py", line 1040, in build_and_install

    self.run_setup(setup_script, setup_base, args)

  File "/usr/lib/python2.7/dist-packages/setuptools/command/easy_install.py", line 1028, in run_setup

    raise DistutilsError("Setup script exited with %s" % (v.args[0],))

distutils.errors.DistutilsError: Setup script exited with 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/cryptography/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /tmp/pip-xq1Yho-record/install-record.txt --single-version-externally-managed --compile failed with error code 1 in /tmp/pip_build_root/cryptography
Storing debug log for failure in /root/.pip/pip.log










root@dlkit-i2c:/home/docker/code/gstudio/gnowsys-ndf/qbank-lite# pip install lxml==3.6.0
Downloading/unpacking lxml==3.6.0
  Downloading lxml-3.6.0.tar.gz (3.7MB): 3.7MB downloaded
  Running setup.py (path:/tmp/pip_build_root/lxml/setup.py) egg_info for package lxml
    Building lxml version 3.6.0.
    Building without Cython.
    ERROR: /bin/sh: 1: xslt-config: not found
    
    ** make sure the development packages of libxml2 and libxslt are installed **
    
    Using build configuration of libxslt
    
    warning: no previously-included files found matching '*.py'
Installing collected packages: lxml
  Running setup.py install for lxml
    Building lxml version 3.6.0.
    Building without Cython.
    ERROR: /bin/sh: 1: xslt-config: not found
    
    ** make sure the development packages of libxml2 and libxslt are installed **
    
    Using build configuration of libxslt
    building 'lxml.etree' extension
    x86_64-linux-gnu-gcc -pthread -fno-strict-aliasing -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fPIC -Isrc/lxml/includes -I/usr/include/python2.7 -c src/lxml/lxml.etree.c -o build/temp.linux-x86_64-2.7/src/lxml/lxml.etree.o -w
    In file included from src/lxml/lxml.etree.c:320:0:
    src/lxml/includes/etree_defs.h:14:31: fatal error: libxml/xmlversion.h: No such file or directory
     #include "libxml/xmlversion.h"
                                   ^
    compilation terminated.
    Compile failed: command 'x86_64-linux-gnu-gcc' failed with exit status 1
    cc -I/usr/include/libxml2 -c /tmp/xmlXPathInitGroilF.c -o tmp/xmlXPathInitGroilF.o
    /tmp/xmlXPathInitGroilF.c:1:26: fatal error: libxml/xpath.h: No such file or directory
     #include "libxml/xpath.h"
                              ^
    compilation terminated.
    *********************************************************************************
    Could not find function xmlCheckVersion in library libxml2. Is libxml2 installed?
    *********************************************************************************
    error: command 'x86_64-linux-gnu-gcc' failed with exit status 1
    Complete output from command /usr/bin/python -c "import setuptools, tokenize;__file__='/tmp/pip_build_root/lxml/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /tmp/pip-4E5LGi-record/install-record.txt --single-version-externally-managed --compile:
    Building lxml version 3.6.0.

Building without Cython.

ERROR: /bin/sh: 1: xslt-config: not found



** make sure the development packages of libxml2 and libxslt are installed **



Using build configuration of libxslt

running install

running build

running build_py

creating build

creating build/lib.linux-x86_64-2.7

creating build/lib.linux-x86_64-2.7/lxml

copying src/lxml/pyclasslookup.py -> build/lib.linux-x86_64-2.7/lxml

copying src/lxml/__init__.py -> build/lib.linux-x86_64-2.7/lxml

copying src/lxml/cssselect.py -> build/lib.linux-x86_64-2.7/lxml

copying src/lxml/usedoctest.py -> build/lib.linux-x86_64-2.7/lxml

copying src/lxml/_elementpath.py -> build/lib.linux-x86_64-2.7/lxml

copying src/lxml/sax.py -> build/lib.linux-x86_64-2.7/lxml

copying src/lxml/builder.py -> build/lib.linux-x86_64-2.7/lxml

copying src/lxml/doctestcompare.py -> build/lib.linux-x86_64-2.7/lxml

copying src/lxml/ElementInclude.py -> build/lib.linux-x86_64-2.7/lxml

creating build/lib.linux-x86_64-2.7/lxml/includes

copying src/lxml/includes/__init__.py -> build/lib.linux-x86_64-2.7/lxml/includes

creating build/lib.linux-x86_64-2.7/lxml/html

copying src/lxml/html/ElementSoup.py -> build/lib.linux-x86_64-2.7/lxml/html

copying src/lxml/html/defs.py -> build/lib.linux-x86_64-2.7/lxml/html

copying src/lxml/html/html5parser.py -> build/lib.linux-x86_64-2.7/lxml/html

copying src/lxml/html/__init__.py -> build/lib.linux-x86_64-2.7/lxml/html

copying src/lxml/html/_html5builder.py -> build/lib.linux-x86_64-2.7/lxml/html

copying src/lxml/html/_diffcommand.py -> build/lib.linux-x86_64-2.7/lxml/html

copying src/lxml/html/usedoctest.py -> build/lib.linux-x86_64-2.7/lxml/html

copying src/lxml/html/_setmixin.py -> build/lib.linux-x86_64-2.7/lxml/html

copying src/lxml/html/formfill.py -> build/lib.linux-x86_64-2.7/lxml/html

copying src/lxml/html/clean.py -> build/lib.linux-x86_64-2.7/lxml/html

copying src/lxml/html/builder.py -> build/lib.linux-x86_64-2.7/lxml/html

copying src/lxml/html/diff.py -> build/lib.linux-x86_64-2.7/lxml/html

copying src/lxml/html/soupparser.py -> build/lib.linux-x86_64-2.7/lxml/html

creating build/lib.linux-x86_64-2.7/lxml/isoschematron

copying src/lxml/isoschematron/__init__.py -> build/lib.linux-x86_64-2.7/lxml/isoschematron

copying src/lxml/lxml.etree.h -> build/lib.linux-x86_64-2.7/lxml

copying src/lxml/lxml.etree_api.h -> build/lib.linux-x86_64-2.7/lxml

copying src/lxml/includes/xpath.pxd -> build/lib.linux-x86_64-2.7/lxml/includes

copying src/lxml/includes/dtdvalid.pxd -> build/lib.linux-x86_64-2.7/lxml/includes

copying src/lxml/includes/xinclude.pxd -> build/lib.linux-x86_64-2.7/lxml/includes

copying src/lxml/includes/relaxng.pxd -> build/lib.linux-x86_64-2.7/lxml/includes

copying src/lxml/includes/c14n.pxd -> build/lib.linux-x86_64-2.7/lxml/includes

copying src/lxml/includes/schematron.pxd -> build/lib.linux-x86_64-2.7/lxml/includes

copying src/lxml/includes/config.pxd -> build/lib.linux-x86_64-2.7/lxml/includes

copying src/lxml/includes/tree.pxd -> build/lib.linux-x86_64-2.7/lxml/includes

copying src/lxml/includes/uri.pxd -> build/lib.linux-x86_64-2.7/lxml/includes

copying src/lxml/includes/etreepublic.pxd -> build/lib.linux-x86_64-2.7/lxml/includes

copying src/lxml/includes/xmlschema.pxd -> build/lib.linux-x86_64-2.7/lxml/includes

copying src/lxml/includes/xmlparser.pxd -> build/lib.linux-x86_64-2.7/lxml/includes

copying src/lxml/includes/htmlparser.pxd -> build/lib.linux-x86_64-2.7/lxml/includes

copying src/lxml/includes/xslt.pxd -> build/lib.linux-x86_64-2.7/lxml/includes

copying src/lxml/includes/xmlerror.pxd -> build/lib.linux-x86_64-2.7/lxml/includes

copying src/lxml/includes/lxml-version.h -> build/lib.linux-x86_64-2.7/lxml/includes

copying src/lxml/includes/etree_defs.h -> build/lib.linux-x86_64-2.7/lxml/includes

creating build/lib.linux-x86_64-2.7/lxml/isoschematron/resources

creating build/lib.linux-x86_64-2.7/lxml/isoschematron/resources/rng

copying src/lxml/isoschematron/resources/rng/iso-schematron.rng -> build/lib.linux-x86_64-2.7/lxml/isoschematron/resources/rng

creating build/lib.linux-x86_64-2.7/lxml/isoschematron/resources/xsl

copying src/lxml/isoschematron/resources/xsl/XSD2Schtrn.xsl -> build/lib.linux-x86_64-2.7/lxml/isoschematron/resources/xsl

copying src/lxml/isoschematron/resources/xsl/RNG2Schtrn.xsl -> build/lib.linux-x86_64-2.7/lxml/isoschematron/resources/xsl

creating build/lib.linux-x86_64-2.7/lxml/isoschematron/resources/xsl/iso-schematron-xslt1

copying src/lxml/isoschematron/resources/xsl/iso-schematron-xslt1/iso_schematron_message.xsl -> build/lib.linux-x86_64-2.7/lxml/isoschematron/resources/xsl/iso-schematron-xslt1

copying src/lxml/isoschematron/resources/xsl/iso-schematron-xslt1/iso_schematron_skeleton_for_xslt1.xsl -> build/lib.linux-x86_64-2.7/lxml/isoschematron/resources/xsl/iso-schematron-xslt1

copying src/lxml/isoschematron/resources/xsl/iso-schematron-xslt1/iso_dsdl_include.xsl -> build/lib.linux-x86_64-2.7/lxml/isoschematron/resources/xsl/iso-schematron-xslt1

copying src/lxml/isoschematron/resources/xsl/iso-schematron-xslt1/iso_abstract_expand.xsl -> build/lib.linux-x86_64-2.7/lxml/isoschematron/resources/xsl/iso-schematron-xslt1

copying src/lxml/isoschematron/resources/xsl/iso-schematron-xslt1/iso_svrl_for_xslt1.xsl -> build/lib.linux-x86_64-2.7/lxml/isoschematron/resources/xsl/iso-schematron-xslt1

copying src/lxml/isoschematron/resources/xsl/iso-schematron-xslt1/readme.txt -> build/lib.linux-x86_64-2.7/lxml/isoschematron/resources/xsl/iso-schematron-xslt1

running build_ext

building 'lxml.etree' extension

creating build/temp.linux-x86_64-2.7

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

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

x86_64-linux-gnu-gcc -pthread -fno-strict-aliasing -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fPIC -Isrc/lxml/includes -I/usr/include/python2.7 -c src/lxml/lxml.etree.c -o build/temp.linux-x86_64-2.7/src/lxml/lxml.etree.o -w

In file included from src/lxml/lxml.etree.c:320:0:

src/lxml/includes/etree_defs.h:14:31: fatal error: libxml/xmlversion.h: No such file or directory

 #include "libxml/xmlversion.h"

                               ^

compilation terminated.

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

creating tmp

cc -I/usr/include/libxml2 -c /tmp/xmlXPathInitGroilF.c -o tmp/xmlXPathInitGroilF.o

/tmp/xmlXPathInitGroilF.c:1:26: fatal error: libxml/xpath.h: No such file or directory

 #include "libxml/xpath.h"

                          ^

compilation terminated.

*********************************************************************************

Could not find function xmlCheckVersion in library libxml2. Is libxml2 installed?

*********************************************************************************

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/lxml/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /tmp/pip-4E5LGi-record/install-record.txt --single-version-externally-managed --compile failed with error code 1 in /tmp/pip_build_root/lxml
Storing debug log for failure in /root/.pip/pip.log