Few updates to PR of 125 (networktocode#129)

* initial pass at type hinting and getting mypy to run

* update tasks and ci to do mypy as well

* rm unused import

* fix contributing end-line number

* fix contributing end-line number

* Add py.typed file to signify availability of type hints to third parties.

* Updates to type hinting.

* Add EOS _build_banner type hints.

* Address feedback.

* Linting.

* Remove .idea from commit and ignore in .gitignore.

* Remove remnants of merge conflict.

* PR feedback.

* PR comments.

* Ignore pylint errors for abstract-method.

* Black.

* add examples and better exception messaging

Co-authored-by: Leo Kirchner <[email protected]>

netutils/password.py

@@ -195,16 +195,12 @@ def encrypt_type5(unencrypted_password: str, salt: t.Optional[str] = None, salt_
 
 def encrypt_type7(unencrypted_password: str, salt: t.Optional[int] = None) -> str:
     """Given an unencrypted password of Cisco Type 7 password, encypt it.
-
     Args:
         unencrypted_password: A password that has not been encrypted, and will be compared against.
         salt: A random number between 0 and 15 that can be set by the operator. Defaults to random generated one.
-
     Returns:
         The encrypted password.
-        str (optional): The encrypted password.
-
-    Example:
+    Examples:
         >>> from netutils.password import encrypt_type7
         >>> encrypt_type7("cisco", 11)
         '110A1016141D'