docs: def package_to_requirement(package_name):
      """Translate a name like Foo-1.2 to Foo==1.3"""
      match = re.search(r'^(.*?)-(dev|\d.*)', package_name)
      if match:
          name = match.group(1)
          version = match.group(2)
      else:
          name = package_name
          version = ''
      if version:
          return '%s==%s' % (name, version)
      else:
          return name