import pydoc
from io import StringIO

input = StringIO()
output = StringIO()
help = pydoc.Helper(input, output)
help.help("abd")
input.close()
output.close()

./python example.py
Running debug|x64 interpreter...
Traceback (most recent call last):
  File "C:\Users\KIRILL-1\CLionProjects\cpython\example.py", line 7, in <module>
    help.help("abd", is_cli=True)
  File "C:\Users\KIRILL-1\CLionProjects\cpython\Lib\pydoc.py", line 2067, in help
    elif request: doc(request, 'Help on %s:', output=self._output, is_cli=is_cli)
                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\KIRILL-1\CLionProjects\cpython\Lib\pydoc.py", line 1793, in doc
    output.write(render_doc(thing, title, forceload, plaintext))
                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\KIRILL-1\CLionProjects\cpython\Lib\pydoc.py", line 1760, in render_doc
    object, name = resolve(thing, forceload)
                   ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\KIRILL-1\CLionProjects\cpython\Lib\pydoc.py", line 1746, in resolve
    raise ImportError('''\
ImportError: No Python documentation found for 'abd'.
Use help() to get the interactive help utility.
Use help(str) for help on the str class.