old_contents: #!/usr/bin/env python
  
  import sys
  from setuptools import setup, find_packages
  
  if sys.version_info[0] == 2:
      requires = ['python-dateutil>=1.0, <2.0']
  else:
      # Py3k
      requires = ['python-dateutil>=2.0']
  
  setup(
      name='freezegun',
      version='0.1.10',
      description='Let your Python tests travel through time',
      author='Steve Pulec',
      author_email='spulec@gmail',
      url='https://github.com/spulec/freezegun',
      packages=find_packages(),
      install_requires=requires,
      include_package_data=True,
  )
  
new_contents: #!/usr/bin/env python
  
  import sys
  from setuptools import setup, find_packages
  
  if sys.version_info[0] == 2:
      requires = ['python-dateutil>=1.0, <2.0, >=2.1']
  else:
      # Py3k
      requires = ['python-dateutil>=2.0']
  
  setup(
      name='freezegun',
      version='0.1.10',
      description='Let your Python tests travel through time',
      author='Steve Pulec',
      author_email='spulec@gmail',
      url='https://github.com/spulec/freezegun',
      packages=find_packages(),
      install_requires=requires,
      include_package_data=True,
  )
  
subject: Update dependency on python-dateutil