Python Docstring is the documentation string which is string literal, and it occurs in the class, module, function or method definition, and it is written as a first statement. Docstrings are accessible from the doc attribute for any of the Python object and also with the built-in help() function can come in handy.
One-line Docstrings
The one-line Docstrings are the Docstrings which fits all in one line. You can use one of the quotes, i.e., triple single or triple double quotes and opening quotes and closing quotes need to be the same. In the one-line Docstrings, closing quotes are in the same line as with the opening quotes. Also, the standard convention is to use the triple-double quotes.