old_contents: # Licensed under a 3-clause BSD style license - see LICENSE.rst
  
  """
  This is an Astropy affiliated package.
  """
  
  # Affiliated packages may add whatever they like to this file, but
  # should keep this content at the top.
  # ----------------------------------------------------------------------------
  from ._astropy_init import *
  # ----------------------------------------------------------------------------
  
  # For egg_info test builds to pass, put package imports here.
  if not _ASTROPY_SETUP_:
  
      from .commands import *
      from .wrappers import *
      from .mpi import set_mpi_command
  
      # Check whether Montage is installed
      installed = False
      for dir in os.environ['PATH'].split(':'):
          if os.path.exists(dir + '/mProject'):
              installed = True
              break
  
      import textwrap
  
      error_wrap = textwrap.TextWrapper(initial_indent=" " * 11,
                                        subsequent_indent=" " * 11,
                                        width=72)
  
      MONTAGE_MISSING = """
      ERROR: Montage commands could not be found.
  
      In order to use the montage_wrapper module, you will first need to
      install the IPAC Montage software from:
  
          http://montage.ipac.caltech.edu
  
      and ensure that the Montage commands (e.g. mAdd, mProject, etc.) are in
      your $PATH. Your current $PATH variable contains the following paths,
      but none of them contain the Montage commands:
  
          PATH = {path}
  
      If the Montage commands are in one of these directories, then please
      report this as an issue with montage-wrapper.
      """.format(path=error_wrap.fill(os.environ['PATH']).strip())
  
      ON_RTD = os.environ.get('READTHEDOCS', None) == 'True'
  
      if not ON_RTD and not installed:
          print(MONTAGE_MISSING)
          import sys
          sys.exit(1)
  
new_contents: # Licensed under a 3-clause BSD style license - see LICENSE.rst
  
  """
  This is an Astropy affiliated package.
  """
  
  # Affiliated packages may add whatever they like to this file, but
  # should keep this content at the top.
  # ----------------------------------------------------------------------------
  from ._astropy_init import *
  # ----------------------------------------------------------------------------
  
  # For egg_info test builds to pass, put package imports here.
  if not _ASTROPY_SETUP_:
  
      from .commands import *
      from .wrappers import *
      from .mpi import set_mpi_command
  
      # Check whether Montage is installed
      installed = False
      for dir in os.environ['PATH'].split(':'):
          if os.path.exists(dir + '/mProject'):
              installed = True
              break
  
      # Check for Windows installation of Montage
      if not installed:
          for dir in os.environ['PATH'].split(';'):
              if os.path.exists(dir + '/mProject.exe'):
                  installed = True
                  break
  
      import textwrap
  
      error_wrap = textwrap.TextWrapper(initial_indent=" " * 11,
                                        subsequent_indent=" " * 11,
                                        width=72)
  
      MONTAGE_MISSING = """
      ERROR: Montage commands could not be found.
  
      In order to use the montage_wrapper module, you will first need to
      install the IPAC Montage software from:
  
          http://montage.ipac.caltech.edu
  
      and ensure that the Montage commands (e.g. mAdd, mProject, etc.) are in
      your $PATH. Your current $PATH variable contains the following paths,
      but none of them contain the Montage commands:
  
          PATH = {path}
  
      If the Montage commands are in one of these directories, then please
      report this as an issue with montage-wrapper.
      """.format(path=error_wrap.fill(os.environ['PATH']).strip())
  
      ON_RTD = os.environ.get('READTHEDOCS', None) == 'True'
  
      if not ON_RTD and not installed:
          print(MONTAGE_MISSING)
          import sys
          sys.exit(1)
  
subject: Add check for Windows-style path commands to __init__.py