docs: def patch_init_py(base_dir, name, version):
      """Patch __init__.py to remove version check and append hard-coded version."""
      # Ensure main package dir is there (may be absent in script-only packages)
      package_dir = os.path.join(base_dir, name)
      if not os.path.isdir(package_dir):
          os.makedirs(package_dir)
      # Open top-level __init__.py and read whole file
      init_py = os.path.join(package_dir, '__init__.py')
      log.info("patching %s to bake in version '%s'" % (init_py, version))
      with open(init_py, 'r+') as init_file:
          lines = init_file.readlines()
          # Search for sentinels indicating version checking block
          try:
              begin = lines.index("# BEGIN VERSION CHECK\n")
              end = lines.index("# END VERSION CHECK\n")
          except ValueError:
              begin = end = len(lines)
          # Delete existing repo version checking block in file
          init_file.seek(0)
          init_file.writelines(lines[:begin] + lines[end+1:])
          # Append new version attribute to ensure it is authoritative, but only
          # if it is not already there (this happens in pip sdist installs)
          version_cmd = "__version__ = '{0}'\n".format(version)
          if not lines or lines[-1] != version_cmd:
              init_file.write("\n# Automatically added by katversion\n")
              init_file.write(version_cmd)
          init_file.truncate()