old_contents: import re
  import ast
  import sys
  from setuptools import setup, find_packages
  
  EXCLUDE_FROM_PACKAGES = ['tests', 'tests.*']
  
  _version_re = re.compile(r'__version__\s+=\s+(.*)')
  
  with open('zsl/__init__.py', 'rb') as f:
      version = str(ast.literal_eval(_version_re.search(
          f.read().decode('utf-8')).group(1)))
  
  _is_py3 = sys.version_info > (3, 0)
  
  setup(name='zsl',
        version=version,
        description='zsl application framework for web based services',
        author='Atteq s.r.o.',
        author_email='open.source@atteq.com',
        url='https://github.com/AtteqCom/zsl',
        license='MIT',
        install_requires=[
            'future',
            'Flask-Injector>=0.8' if _is_py3 else 'Flask-Injector==0.8.0',
            'requests>=2.7',
            'SQLAlchemy>=1',
            'typing>=3.5',
            'Werkzeug>=0.12',
        ],
        extras_require={
            'cli': ['bpython'],
            'redis': ['redis>=2.10'],
            'celery': ['zsl_client'],
            'gearman': ['zsl_client', 'gearman'],
            'alembic': ['alembic'],
            'documentation': ['sphinx', 'recommonmark', 'sphinx_rtd_theme']
        },
        classifiers=[
            'Development Status :: 3 - Alpha',
            'Programming Language :: Python :: 2.7',
            'Programming Language :: Python :: 3.6',
            'Operating System :: OS Independent',
            'Topic :: Software Development :: Libraries :: Application Frameworks'
        ],
        packages=find_packages(exclude=EXCLUDE_FROM_PACKAGES))
  
new_contents: import re
  import ast
  import sys
  from setuptools import setup, find_packages
  
  EXCLUDE_FROM_PACKAGES = ['tests', 'tests.*']
  
  _version_re = re.compile(r'__version__\s+=\s+(.*)')
  
  with open('zsl/__init__.py', 'rb') as f:
      version = str(ast.literal_eval(_version_re.search(
          f.read().decode('utf-8')).group(1)))
  
  _is_py3 = sys.version_info > (3, 0)
  
  setup(name='zsl',
        version=version,
        description='zsl application framework for web based services',
        author='Atteq s.r.o.',
        author_email='open.source@atteq.com',
        url='https://github.com/AtteqCom/zsl',
        license='MIT',
        install_requires=[
            'future',
            'Flask-Injector>=0.8' if _is_py3 else 'Flask-Injector==0.8.0',
            'requests>=2.7',
            'SQLAlchemy>=1',
            'typing>=3.5',
            'Werkzeug>=0.12',
        ],
        extras_require={
            'cli': ['bpython'],
            'redis': ['redis>=2.10'],
            'celery': ['zsl_client'],
            'gearman': ['zsl_client', 'gearman'],
            'alembic': ['alembic'],
            'documentation': ['sphinx', 'recommonmark', 'sphinx_rtd_theme', 'alembic']
        },
        classifiers=[
            'Development Status :: 3 - Alpha',
            'Programming Language :: Python :: 2.7',
            'Programming Language :: Python :: 3.6',
            'Operating System :: OS Independent',
            'Topic :: Software Development :: Libraries :: Application Frameworks'
        ],
        packages=find_packages(exclude=EXCLUDE_FROM_PACKAGES))
  
subject: Add alembic as documentation dependancy