old_contents: #! /usr/bin/env python
  from __future__ import print_function
  
  import datetime
  import os
  import sys
  import json
  import uuid
  
  def get_year():
      now = datetime.datetime.now()
      return now.year
  
  def get_username():
      try:
          # POSIX only
          import pwd
          gecos_field =  pwd.getpwuid(os.getuid()).pw_gecos
          full_name = gecos_field.split(',')[0]
          return full_name
      except ImportError:
          import getpass
          return getpass.getuser()
  
  if len(sys.argv) > 1:
      invocation = sys.argv[1]
  else:
      sys.stderr.write("Usage: python "+sys.argv[0]+" 'command-invocation'"+'\n')
      sys.exit(1)
  
  new_uuid = str(uuid.uuid4())
  
  oyster = \
  {
      "component-commands": [
          "<FIXME>"
      ],
      "copying": {
          "authors": [
              get_username()
          ],
          "license-name": "MIT (Expat) License",
          "license-url": "http://opensource.org/licenses/MIT",
          "year": get_year()
      },
      "description": {
          "verbose-description": "<FIXME>"
      },
      "invocations": [
          {
              "invocation-string": invocation
          }
      ],
      "uuid": new_uuid
  }
  
  root = sys.path[0]
  new_filename = new_uuid + '.json'
  new_filepath = os.path.join(root, 'cmdoysters', new_filename)
  with open(new_filepath, 'w') as new_file:
      json.dump(oyster, new_file, indent=4, separators=(',', ': '), sort_keys=True)
      print('Created new CmdOyster:\n{}'.format(new_filepath))
  
new_contents: #! /usr/bin/env python
  from __future__ import print_function
  
  import datetime
  import os
  import sys
  import json
  import uuid
  
  def get_year():
      now = datetime.datetime.now()
      return now.year
  
  if len(sys.argv) > 1:
      invocation = sys.argv[1]
  else:
      sys.stderr.write("Usage: python "+sys.argv[0]+" 'command-invocation'"+'\n')
      sys.exit(1)
  
  new_uuid = str(uuid.uuid4())
  
  oyster = \
  {
      "component-commands": [
          "<FIXME>"
      ],
      "copying": {
          "authors": [
              "<FIXME>"
          ],
          "license-name": "MIT (Expat) License",
          "license-url": "http://opensource.org/licenses/MIT",
          "year": get_year()
      },
      "description": {
          "verbose-description": "<FIXME>"
      },
      "invocations": [
          {
              "invocation-string": invocation
          }
      ],
      "uuid": new_uuid
  }
  
  root = sys.path[0]
  new_filename = new_uuid + '.json'
  new_filepath = os.path.join(root, 'cmdoysters', new_filename)
  with open(new_filepath, 'w') as new_file:
      json.dump(oyster, new_file, indent=4, separators=(',', ': '), sort_keys=True)
      print('Created new CmdOyster:\n{}'.format(new_filepath))
  
subject: Make this simpler.