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Issue to install on ubuntu 14.04

See original GitHub issue

Welcome to Lektor

This script will install Lektor on your computer.

  bin: /usr/local/bin
  app: /usr/local/lib/lektor

Continue? [Yn] y
New python executable in /usr/local/lib/lektor/bin/python
Installing setuptools, pip, wheel...done.
Collecting Lektor
/usr/local/lib/lektor/local/lib/python2.7/site-packages/pip/_vendor/requests/packages/urllib3/util/ssl_.py:90: InsecurePlatformWarning: A true SSLContext object is not available. This prevents urllib3 from configuring SSL appropriately and may cause certain SSL connections to fail. For more information, see https://urllib3.readthedocs.org/en/latest/security.html#insecureplatformwarning.
  InsecurePlatformWarning
  Downloading Lektor-1.0-py2-none-any.whl (1.9MB)
    100% |████████████████████████████████| 1.9MB 99kB/s 
Collecting Babel (from Lektor)
  Downloading Babel-2.1.1-py2.py3-none-any.whl (3.6MB)
    100% |████████████████████████████████| 3.6MB 95kB/s 
Collecting setuptools (from Lektor)
  Downloading setuptools-19.1.1-py2.py3-none-any.whl (463kB)
    100% |████████████████████████████████| 466kB 160kB/s 
Collecting Flask (from Lektor)
  Downloading Flask-0.10.1.tar.gz (544kB)
    100% |████████████████████████████████| 544kB 108kB/s 
Collecting inifile (from Lektor)
  Downloading inifile-0.2-py2-none-any.whl
Collecting mistune (from Lektor)
  Downloading mistune-0.7.1-py2.py3-none-any.whl
Collecting click>=6.0 (from Lektor)
  Downloading click-6.2-py2.py3-none-any.whl (70kB)
    100% |████████████████████████████████| 73kB 338kB/s 
Collecting EXIFRead (from Lektor)
  Downloading ExifRead-2.1.2-py2-none-any.whl (47kB)
    100% |████████████████████████████████| 49kB 134kB/s 
Collecting watchdog (from Lektor)
  Downloading watchdog-0.8.3.tar.gz (83kB)
    100% |████████████████████████████████| 86kB 122kB/s 
Requirement already up-to-date: pip in /usr/local/lib/lektor/lib/python2.7/site-packages (from Lektor)
Collecting Jinja2>=2.4 (from Lektor)
  Downloading Jinja2-2.8-py2.py3-none-any.whl (263kB)
    100% |████████████████████████████████| 266kB 121kB/s 
Collecting pytz>=0a (from Babel->Lektor)
  Downloading pytz-2015.7-py2.py3-none-any.whl (476kB)
    100% |████████████████████████████████| 479kB 117kB/s 
Collecting Werkzeug>=0.7 (from Flask->Lektor)
  Downloading Werkzeug-0.11.3-py2.py3-none-any.whl (305kB)
    100% |████████████████████████████████| 307kB 915kB/s 
Collecting itsdangerous>=0.21 (from Flask->Lektor)
  Downloading itsdangerous-0.24.tar.gz (46kB)
    100% |████████████████████████████████| 49kB 138kB/s 
Collecting PyYAML>=3.10 (from watchdog->Lektor)
  Downloading PyYAML-3.11.tar.gz (248kB)
    100% |████████████████████████████████| 249kB 1.8MB/s 
Collecting argh>=0.24.1 (from watchdog->Lektor)
  Downloading argh-0.26.1.tar.gz
Collecting pathtools>=0.1.1 (from watchdog->Lektor)
  Downloading pathtools-0.1.2.tar.gz
Collecting MarkupSafe (from Jinja2>=2.4->Lektor)
  Downloading MarkupSafe-0.23.tar.gz
Building wheels for collected packages: Flask, watchdog, itsdangerous, PyYAML, argh, pathtools, MarkupSafe
  Running setup.py bdist_wheel for Flask
  Stored in directory: /root/.cache/pip/wheels/d2/db/61/cb9b80526b8f3ba89248ec0a29d6da1bb6013681c930fca987
  Running setup.py bdist_wheel for watchdog
  Stored in directory: /root/.cache/pip/wheels/93/93/cf/e7a7eee3227b2720bc95e96fe35562c08224814a3adfe8e447
  Running setup.py bdist_wheel for itsdangerous
  Stored in directory: /root/.cache/pip/wheels/97/c0/b8/b37c320ff57e15f993ba0ac98013eee778920b4a7b3ebae3cf
  Running setup.py bdist_wheel for PyYAML
  Complete output from command /usr/local/lib/lektor/bin/python -c "import setuptools;__file__='/tmp/pip-build-EEFbyE/PyYAML/setup.py';exec(compile(open(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" bdist_wheel -d /tmp/tmpS09bJzpip-wheel-:
  running bdist_wheel
  running build
  running build_py
  creating build
  creating build/lib.linux-x86_64-2.7
  creating build/lib.linux-x86_64-2.7/yaml
  copying lib/yaml/tokens.py -> build/lib.linux-x86_64-2.7/yaml
  copying lib/yaml/loader.py -> build/lib.linux-x86_64-2.7/yaml
  copying lib/yaml/scanner.py -> build/lib.linux-x86_64-2.7/yaml
  copying lib/yaml/reader.py -> build/lib.linux-x86_64-2.7/yaml
  copying lib/yaml/parser.py -> build/lib.linux-x86_64-2.7/yaml
  copying lib/yaml/error.py -> build/lib.linux-x86_64-2.7/yaml
  copying lib/yaml/events.py -> build/lib.linux-x86_64-2.7/yaml
  copying lib/yaml/dumper.py -> build/lib.linux-x86_64-2.7/yaml
  copying lib/yaml/serializer.py -> build/lib.linux-x86_64-2.7/yaml
  copying lib/yaml/resolver.py -> build/lib.linux-x86_64-2.7/yaml
  copying lib/yaml/cyaml.py -> build/lib.linux-x86_64-2.7/yaml
  copying lib/yaml/composer.py -> build/lib.linux-x86_64-2.7/yaml
  copying lib/yaml/nodes.py -> build/lib.linux-x86_64-2.7/yaml
  copying lib/yaml/representer.py -> build/lib.linux-x86_64-2.7/yaml
  copying lib/yaml/__init__.py -> build/lib.linux-x86_64-2.7/yaml
  copying lib/yaml/emitter.py -> build/lib.linux-x86_64-2.7/yaml
  copying lib/yaml/constructor.py -> build/lib.linux-x86_64-2.7/yaml
  running build_ext
  creating build/temp.linux-x86_64-2.7
  checking if libyaml is compilable
  x86_64-linux-gnu-gcc -pthread -fno-strict-aliasing -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fPIC -I/usr/include/python2.7 -c build/temp.linux-x86_64-2.7/check_libyaml.c -o build/temp.linux-x86_64-2.7/check_libyaml.o
  checking if libyaml is linkable
  x86_64-linux-gnu-gcc -pthread build/temp.linux-x86_64-2.7/check_libyaml.o -lyaml -o build/temp.linux-x86_64-2.7/check_libyaml
  building '_yaml' extension
  creating build/temp.linux-x86_64-2.7/ext
  x86_64-linux-gnu-gcc -pthread -fno-strict-aliasing -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fPIC -I/usr/include/python2.7 -c ext/_yaml.c -o build/temp.linux-x86_64-2.7/ext/_yaml.o
  ext/_yaml.c:8:22: fatal error: pyconfig.h: No such file or directory
   #include "pyconfig.h"
                        ^
  compilation terminated.
  error: command 'x86_64-linux-gnu-gcc' failed with exit status 1

  ----------------------------------------
  Failed building wheel for PyYAML
  Running setup.py bdist_wheel for argh
  Stored in directory: /root/.cache/pip/wheels/e4/96/31/ed4151f32f78e2ebec318bc7081d65077c6c1512b561d1b263
  Running setup.py bdist_wheel for pathtools
  Stored in directory: /root/.cache/pip/wheels/97/d9/56/198cec194e02660d647417d4ad60f100fffc390fb46d243be5
  Running setup.py bdist_wheel for MarkupSafe
  Stored in directory: /root/.cache/pip/wheels/94/a7/79/f79a998b64c1281cb99fa9bbd33cfc9b8b5775f438218d17a7
Successfully built Flask watchdog itsdangerous argh pathtools MarkupSafe
Failed to build PyYAML
Installing collected packages: pytz, Babel, setuptools, Werkzeug, MarkupSafe, Jinja2, itsdangerous, Flask, inifile, mistune, click, EXIFRead, PyYAML, argh, pathtools, watchdog, Lektor
  Found existing installation: setuptools 18.2
    Uninstalling setuptools-18.2:
      Successfully uninstalled setuptools-18.2
  Running setup.py install for PyYAML
    Complete output from command /usr/local/lib/lektor/bin/python -c "import setuptools, tokenize;__file__='/tmp/pip-build-EEFbyE/PyYAML/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /tmp/pip-6fL1dX-record/install-record.txt --single-version-externally-managed --compile --install-headers /usr/local/lib/lektor/include/site/python2.7/PyYAML:
    running install
    running build
    running build_py
    running build_ext
    building '_yaml' extension
    x86_64-linux-gnu-gcc -pthread -fno-strict-aliasing -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fPIC -I/usr/include/python2.7 -c ext/_yaml.c -o build/temp.linux-x86_64-2.7/ext/_yaml.o
    ext/_yaml.c:8:22: fatal error: pyconfig.h: No such file or directory
     #include "pyconfig.h"
                          ^
    compilation terminated.
    error: command 'x86_64-linux-gnu-gcc' failed with exit status 1

    ----------------------------------------
Command "/usr/local/lib/lektor/bin/python -c "import setuptools, tokenize;__file__='/tmp/pip-build-EEFbyE/PyYAML/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /tmp/pip-6fL1dX-record/install-record.txt --single-version-externally-managed --compile --install-headers /usr/local/lib/lektor/include/site/python2.7/PyYAML" failed with error code 1 in /tmp/pip-build-EEFbyE/PyYAML
/usr/local/lib/lektor/local/lib/python2.7/site-packages/pip/_vendor/requests/packages/urllib3/util/ssl_.py:90: InsecurePlatformWarning: A true SSLContext object is not available. This prevents urllib3 from configuring SSL appropriately and may cause certain SSL connections to fail. For more information, see https://urllib3.readthedocs.org/en/latest/security.html#insecureplatformwarning.
  InsecurePlatformWarning

All done!