old_contents: # Author: F. Alex Wolf (http://falexwolf.de)
  #         P. Angerer
  """Scanpy - Single-Cell Analysis in Python
  
  Reference
  ---------
  Wolf, Angerer & Theis, bioRxiv doi:... (2017)
  """
  
  import sys
  import warnings
  if (sys.version_info < (3, 0)):
      warnings.warn('Scanpy only runs reliably with Python 3, preferrably >=3.5.')
  
  # version generated by versioneer
  from ._version import get_versions
  __version__ = get_versions()['version']
  del get_versions
  
new_contents: # Author: F. Alex Wolf (http://falexwolf.de)
  #         P. Angerer
  """Scanpy - Single-Cell Analysis in Python
  
  Reference
  ---------
  Wolf, Angerer & Theis, bioRxiv doi:... (2017)
  """
  
  import sys
  import warnings
  from distutils.version import LooseVersion
  
  if sys.version_info < (3, 0):
      warnings.warn('Scanpy only runs reliably with Python 3, preferrably >=3.5.')
      
  import pandas as pd
  if pd.__version__ < LooseVersion('0.21'):
      raise ImportError('Scanpy needs pandas version >=0.21, not {}.\n'
                        'Run `pip install pandas --upgrade`.'
                        .format(pd.__version__))
  
  import anndata
  if anndata.__version__ < LooseVersion('0.3.0.3'):
      raise ImportError('Scanpy needs anndata version >=0.3.0.3, not {}.\n'
                        'Run `pip install anndata --upgrade`.'
                        .format(anndata.__version__))
  
  # version generated by versioneer
  from ._version import get_versions
  __version__ = get_versions()['version']
  del get_versions
  
subject: check for minimal version of anndata and pandas