Typing (#128)

* fix: CI yml name

* add: mypy configuraion

* add: type annotation to waybackpy modules

* add: type annotation to test modules

* fix: mypy command

* add: types-requests to dev deps

* fix: disable max-line-length

* fix: move pytest.ini into setup.cfg

* add: urllib3 to deps

* fix: Retry (ref: https://github.com/python/typeshed/issues/6893)

* fix: f-string

* fix: shorten long lines

* add: staticmethod decorator to no-self-use methods

* fix: str(headers)->headers_str

* fix: error message

* fix: revert "str(headers)->headers_str" and ignore assignment CaseInsensitiveDict with str

* fix: mypy error

waybackpy/__init__.py

@@ -5,11 +5,7 @@ __description__ = (
 )
 __url__ = "https://akamhy.github.io/waybackpy/"
 __version__ = "3.0.2"
-__download_url__ = (
-    "https://github.com/akamhy/waybackpy/archive/{version}.tar.gz".format(
-        version=__version__
-    )
-)
+__download_url__ = f"https://github.com/akamhy/waybackpy/archive/{__version__}.tar.gz"
 __author__ = "Akash Mahanty"
 __author_email__ = "akamhy@yahoo.com"
 __license__ = "MIT"