pip-compile failing

gistfile1.txt

pip-compile -v requirements.in
Using indexes:
  https://pypi.python.org/simple

                          ROUND 1
Current constraints:
  configparser==3.5.0b2
  Flask
  Flask-Cache==0.12
  html5lib==1.0b1
  lxml<4.0.0,>=3.2.1
  python-dateutil<3.0.0,>=2.1
  python-slugify==0.0.6
  PyYAML<4.0.0,>=3.11
  raven[flask]
  requests<3.0.0,>=2.9.1
  rethinkdb==2.3.0.post1
  termcolor<2.0.0,>=1.1.0
  tox

Finding the best candidates:
  found candidate configparser==3.5.0b2 (constraint was ==3.5.0b2)
  found candidate flask==0.10.1 (constraint was <any>)
  found candidate flask-cache==0.12 (constraint was ==0.12)
  found candidate html5lib==1.0b1 (constraint was ==1.0b1)
  found candidate lxml==3.5.0 (constraint was >=3.2.1,<4.0.0)
  found candidate python-dateutil==2.5.0 (constraint was >=2.1,<3.0.0)
  found candidate python-slugify==0.0.6 (constraint was ==0.0.6)
  found candidate pyyaml==3.11 (constraint was >=3.11,<4.0.0)
  found candidate raven[flask]==5.12.0 (constraint was <any>)
  found candidate requests==2.9.1 (constraint was >=2.9.1,<3.0.0)
  found candidate rethinkdb==2.3.0.post1 (constraint was ==2.3.0.post1)
  found candidate termcolor==1.1.0 (constraint was >=1.1.0,<2.0.0)
  found candidate tox==2.3.1 (constraint was <any>)

Finding secondary dependencies:
  python-dateutil==2.5.0    requires six>=1.5
  lxml==3.5.0               requires -
  html5lib==1.0b1           requires six
  flask-cache==0.12         requires Flask
  raven[flask]==5.12.0      requires blinker>=1.1; extra == "flask", contextlib2, Flask>=0.8; extra == "flask"
  rethinkdb==2.3.0.post1    requires -
  configparser==3.5.0b2     requires -
  requests==2.9.1           requires -
  pyyaml==3.11              requires -
  tox==2.3.1                requires pluggy<0.4.0,>=0.3.0, py>=1.4.17, virtualenv>=1.11.2
  termcolor==1.1.0          requires -
  flask==0.10.1             requires itsdangerous>=0.21, Jinja2>=2.4, Werkzeug>=0.7
  python-slugify==0.0.6     requires Unidecode>=0.04.12

New dependencies found in this round:
  adding [u'blinker', '>=1.1', '[]']
  adding [u'contextlib2', '', '[]']
  adding [u'flask', '>=0.8', '[]']
  adding [u'itsdangerous', '>=0.21', '[]']
  adding [u'jinja2', '>=2.4', '[]']
  adding [u'pluggy', '<0.4.0,>=0.3.0', '[]']
  adding [u'py', '>=1.4.17', '[]']
  adding [u'six', '>=1.5', '[]']
  adding [u'unidecode', '>=0.04.12', '[]']
  adding [u'virtualenv', '>=1.11.2', '[]']
  adding [u'werkzeug', '>=0.7', '[]']
Removed dependencies in this round:
------------------------------------------------------------
Result of round 1: not stable

                          ROUND 2
Current constraints:
  blinker>=1.1
  configparser==3.5.0b2
  contextlib2
  Flask>=0.8
  Flask-Cache==0.12
  html5lib==1.0b1
  itsdangerous>=0.21
  Jinja2>=2.4
  lxml<4.0.0,>=3.2.1
  pluggy<0.4.0,>=0.3.0
  py>=1.4.17
  python-dateutil<3.0.0,>=2.1
  python-slugify==0.0.6
  PyYAML<4.0.0,>=3.11
  raven[flask]
  requests<3.0.0,>=2.9.1
  rethinkdb==2.3.0.post1
  six>=1.5
  termcolor<2.0.0,>=1.1.0
  tox
  Unidecode>=0.04.12
  virtualenv>=1.11.2
  Werkzeug>=0.7

Finding the best candidates:
  found candidate blinker==1.4 (constraint was >=1.1)
  found candidate configparser==3.5.0b2 (constraint was ==3.5.0b2)
  found candidate contextlib2==0.5.1 (constraint was <any>)
  found candidate flask==0.10.1 (constraint was >=0.8)
  found candidate flask-cache==0.12 (constraint was ==0.12)
  found candidate html5lib==1.0b1 (constraint was ==1.0b1)
  found candidate itsdangerous==0.24 (constraint was >=0.21)
  found candidate jinja2==2.8 (constraint was >=2.4)
  found candidate lxml==3.5.0 (constraint was >=3.2.1,<4.0.0)
  found candidate pluggy==0.3.1 (constraint was >=0.3.0,<0.4.0)
  found candidate py==1.4.31 (constraint was >=1.4.17)
  found candidate python-dateutil==2.5.0 (constraint was >=2.1,<3.0.0)
  found candidate python-slugify==0.0.6 (constraint was ==0.0.6)
  found candidate pyyaml==3.11 (constraint was >=3.11,<4.0.0)
  found candidate raven[flask]==5.12.0 (constraint was <any>)
  found candidate requests==2.9.1 (constraint was >=2.9.1,<3.0.0)
  found candidate rethinkdb==2.3.0.post1 (constraint was ==2.3.0.post1)
  found candidate six==1.10.0 (constraint was >=1.5)
  found candidate termcolor==1.1.0 (constraint was >=1.1.0,<2.0.0)
  found candidate tox==2.3.1 (constraint was <any>)
  found candidate unidecode==0.4.19 (constraint was >=0.04.12)
  found candidate virtualenv==15.0.1 (constraint was >=1.11.2)
  found candidate werkzeug==0.11.4 (constraint was >=0.7)

Finding secondary dependencies:
  contextlib2==0.5.1        requires -
  virtualenv==15.0.1        requires -
  flask==0.10.1             requires itsdangerous>=0.21, Jinja2>=2.4, Werkzeug>=0.7
  pyyaml==3.11              requires -
  werkzeug==0.11.4          requires -
  itsdangerous==0.24        requires -
  rethinkdb==2.3.0.post1    requires -
  flask-cache==0.12         requires Flask
  tox==2.3.1                requires pluggy<0.4.0,>=0.3.0, py>=1.4.17, virtualenv>=1.11.2
  lxml==3.5.0               requires -
  configparser==3.5.0b2     requires -
  python-slugify==0.0.6     requires Unidecode>=0.04.12
  html5lib==1.0b1           requires six
  six==1.10.0               requires -
  pluggy==0.3.1             requires -
  requests==2.9.1           requires -
  raven[flask]==5.12.0      requires blinker>=1.1; extra == "flask", contextlib2, Flask>=0.8; extra == "flask"
  blinker==1.4              requires -
  py==1.4.31                requires -
  termcolor==1.1.0          requires -
  python-dateutil==2.5.0    requires six>=1.5
  jinja2==2.8               requires MarkupSafe
  unidecode==0.4.19         requires -

New dependencies found in this round:
  adding [u'markupsafe', '', '[]']
Removed dependencies in this round:
------------------------------------------------------------
Result of round 2: not stable

                          ROUND 3
Current constraints:
  blinker>=1.1
  configparser==3.5.0b2
  contextlib2
  Flask>=0.8
  Flask-Cache==0.12
  html5lib==1.0b1
  itsdangerous>=0.21
  Jinja2>=2.4
  lxml<4.0.0,>=3.2.1
  MarkupSafe
  pluggy<0.4.0,>=0.3.0
  py>=1.4.17
  python-dateutil<3.0.0,>=2.1
  python-slugify==0.0.6
  PyYAML<4.0.0,>=3.11
  raven[flask]
  requests<3.0.0,>=2.9.1
  rethinkdb==2.3.0.post1
  six>=1.5
  termcolor<2.0.0,>=1.1.0
  tox
  Unidecode>=0.04.12
  virtualenv>=1.11.2
  Werkzeug>=0.7

Finding the best candidates:
  found candidate blinker==1.4 (constraint was >=1.1)
  found candidate configparser==3.5.0b2 (constraint was ==3.5.0b2)
  found candidate contextlib2==0.5.1 (constraint was <any>)
  found candidate flask==0.10.1 (constraint was >=0.8)
  found candidate flask-cache==0.12 (constraint was ==0.12)
  found candidate html5lib==1.0b1 (constraint was ==1.0b1)
  found candidate itsdangerous==0.24 (constraint was >=0.21)
  found candidate jinja2==2.8 (constraint was >=2.4)
  found candidate lxml==3.5.0 (constraint was >=3.2.1,<4.0.0)
  found candidate markupsafe==0.23 (constraint was <any>)
  found candidate pluggy==0.3.1 (constraint was >=0.3.0,<0.4.0)
  found candidate py==1.4.31 (constraint was >=1.4.17)
  found candidate python-dateutil==2.5.0 (constraint was >=2.1,<3.0.0)
  found candidate python-slugify==0.0.6 (constraint was ==0.0.6)
  found candidate pyyaml==3.11 (constraint was >=3.11,<4.0.0)
  found candidate raven[flask]==5.12.0 (constraint was <any>)
  found candidate requests==2.9.1 (constraint was >=2.9.1,<3.0.0)
  found candidate rethinkdb==2.3.0.post1 (constraint was ==2.3.0.post1)
  found candidate six==1.10.0 (constraint was >=1.5)
  found candidate termcolor==1.1.0 (constraint was >=1.1.0,<2.0.0)
  found candidate tox==2.3.1 (constraint was <any>)
  found candidate unidecode==0.4.19 (constraint was >=0.04.12)
  found candidate virtualenv==15.0.1 (constraint was >=1.11.2)
  found candidate werkzeug==0.11.4 (constraint was >=0.7)

Finding secondary dependencies:
  markupsafe==0.23          requires -
  rethinkdb==2.3.0.post1    requires -
  tox==2.3.1                requires pluggy<0.4.0,>=0.3.0, py>=1.4.17, virtualenv>=1.11.2
  python-slugify==0.0.6     requires Unidecode>=0.04.12
  html5lib==1.0b1           requires six
  python-dateutil==2.5.0    requires six>=1.5
  py==1.4.31                requires -
  pyyaml==3.11              requires -
  requests==2.9.1           requires -
  termcolor==1.1.0          requires -
  lxml==3.5.0               requires -
  pluggy==0.3.1             requires -
  configparser==3.5.0b2     requires -
  flask-cache==0.12         requires Flask
  virtualenv==15.0.1        requires -
  werkzeug==0.11.4          requires -
  blinker==1.4              requires -
  flask==0.10.1             requires itsdangerous>=0.21, Jinja2>=2.4, Werkzeug>=0.7
  itsdangerous==0.24        requires -
  contextlib2==0.5.1        requires -
  unidecode==0.4.19         requires -
  jinja2==2.8               requires MarkupSafe
  six==1.10.0               requires -
  raven[flask]==5.12.0      requires blinker>=1.1; extra == "flask", contextlib2, Flask>=0.8; extra == "flask"
------------------------------------------------------------
Result of round 3: stable, done

Traceback (most recent call last):
  File "/usr/local/bin/pip-compile", line 11, in <module>
    sys.exit(cli())
  File "/Library/Python/2.7/site-packages/click/core.py", line 722, in __call__
    return self.main(*args, **kwargs)
  File "/Library/Python/2.7/site-packages/click/core.py", line 697, in main
    rv = self.invoke(ctx)
  File "/Library/Python/2.7/site-packages/click/core.py", line 895, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/Library/Python/2.7/site-packages/click/core.py", line 535, in invoke
    return callback(*args, **kwargs)
  File "/Library/Python/2.7/site-packages/piptools/scripts/compile.py", line 209, in cli
    reverse_dependencies = resolver.reverse_dependencies(results)
  File "/Library/Python/2.7/site-packages/piptools/resolver.py", line 277, in reverse_dependencies
    return self.dependency_cache.reverse_dependencies(non_editable)
  File "/Library/Python/2.7/site-packages/piptools/cache.py", line 139, in reverse_dependencies
    return self._reverse_dependencies(ireqs_as_cache_values)
  File "/Library/Python/2.7/site-packages/piptools/cache.py", line 163, in _reverse_dependencies
    for name, version_and_extras in cache_keys
  File "/Library/Python/2.7/site-packages/piptools/utils.py", line 195, in lookup_table
    for value in values:
  File "/Library/Python/2.7/site-packages/piptools/cache.py", line 164, in <genexpr>
    for dep_name in self.cache[name][version_and_extras])
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources/__init__.py", line 3001, in parse
    req, = parse_requirements(s)
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources/__init__.py", line 2945, in parse_requirements
    "version spec")
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources/__init__.py", line 2921, in scan_list
    raise RequirementParseError(msg, line, "at", line[p:])
pkg_resources.RequirementParseError: Expected ',' or end-of-list in Flask>=0.8; extra == "flask" at ; extra == "flask"