use r""" as suggested by pydocstyle

        D301: Use r""" if any backslashes in a docstring

        Use r"""raw triple double quotes""" if you use any backslashes
        (\) in your docstrings.
        Exceptions are backslashes for line-continuation and unicode escape
        sequences \N... and \u... These are considered intended unescaped
        content in docstrings.

blessed/terminal.py

@@ -1427,7 +1427,7 @@ def keypad(self):
             self.stream.flush()
 
     def inkey(self, timeout=None, esc_delay=DEFAULT_ESCDELAY):
-        """
+        r"""
         Read and return the next keyboard event within given timeout.
 
         Generally, this should be used inside the :meth:`raw` context manager.