old_contents: """
  Version numbering. The `major`, `minor`, and `bugfix`
  variables hold the respective parts of the version number (bugfix is '0' if
  absent). The `release` variable is True if this is a release, and False if this
  is a development version. For the actual version string, use::
  
      from mica import version
  
  or::
  
      from mica import __version__
  
  NOTE: this code copied from astropy and modified.  Any license restrictions
  therein are applicable.
  """
  
  version = '0.5.2'
  
  _versplit = version.replace('dev', '').split('.')
  major = int(_versplit[0])
  minor = int(_versplit[1])
  if len(_versplit) < 3:
      bugfix = 0
  else:
      bugfix = int(_versplit[2])
  del _versplit
  
  release = not version.endswith('dev')
  
  
  def _get_git_devstr():
      """Determines the number of revisions in this repository and returns "" if
      this is not possible.
  
      Returns
      -------
      devstr : str
          A string that begins with 'dev' to be appended to the version number
          string.
      """
      from os import path
      from subprocess import Popen, PIPE
  
      currdir = path.abspath(path.split(__file__)[0])
  
      p = Popen(['git', 'rev-list', 'HEAD'], cwd=currdir,
                stdout=PIPE, stderr=PIPE, stdin=PIPE)
      stdout, stderr = p.communicate()
  
      if p.returncode != 0:
          return ''
      else:
          revs = stdout.decode('ascii').split('\n')
          return  '-r%s-%s' % (len(revs), revs[0][:7])
  
  if not release:
      version = version + _get_git_devstr()
  
  __version__ = version
  
new_contents: """
  Version numbering. The `major`, `minor`, and `bugfix`
  variables hold the respective parts of the version number (bugfix is '0' if
  absent). The `release` variable is True if this is a release, and False if this
  is a development version. For the actual version string, use::
  
      from mica import version
  
  or::
  
      from mica import __version__
  
  NOTE: this code copied from astropy and modified.  Any license restrictions
  therein are applicable.
  """
  
  version = '0.5.3dev'
  
  _versplit = version.replace('dev', '').split('.')
  major = int(_versplit[0])
  minor = int(_versplit[1])
  if len(_versplit) < 3:
      bugfix = 0
  else:
      bugfix = int(_versplit[2])
  del _versplit
  
  release = not version.endswith('dev')
  
  
  def _get_git_devstr():
      """Determines the number of revisions in this repository and returns "" if
      this is not possible.
  
      Returns
      -------
      devstr : str
          A string that begins with 'dev' to be appended to the version number
          string.
      """
      from os import path
      from subprocess import Popen, PIPE
  
      currdir = path.abspath(path.split(__file__)[0])
  
      p = Popen(['git', 'rev-list', 'HEAD'], cwd=currdir,
                stdout=PIPE, stderr=PIPE, stdin=PIPE)
      stdout, stderr = p.communicate()
  
      if p.returncode != 0:
          return ''
      else:
          revs = stdout.decode('ascii').split('\n')
          return  '-r%s-%s' % (len(revs), revs[0][:7])
  
  if not release:
      version = version + _get_git_devstr()
  
  __version__ = version
  
subject: Set version to 0.5.3dev