code: def create_changelog(project_dir=os.curdir, bugtracker_url='',
                       rpm_format=False):
      
      pkg_info_file = os.path.join(project_dir, 'PKG-INFO')
      if os.path.exists(pkg_info_file):
          return
  
      with open('CHANGELOG', 'wb') as changelog_fd:
          changelog_fd.write(
              get_changelog(
                  project_dir=project_dir,
                  bugtracker_url=bugtracker_url,
                  rpm_format=rpm_format,
              ).encode('utf-8')
          )
docs: Creates the changelog file, if not in a package.
  
      :param project_dir: Path to the git repo of the project.
      :type project_dir: str
      :param bugtracker_url: Url to the bug tracker for the issues.
      :type bugtracker_url: str
      :param rpm_format: if set to True, will make the changelog rpm-compatible.
      :type rpm_format: bool
      :rises RuntimeError: If the changelog could not be retrieved