Update dependencies and fix Python 2 compatibility

Fixes GuestIssuer jwt_token.decode('utf-8') redundant? #162 for webexteamssdk v1.

Author: cmlccie

setup.py

@@ -1,7 +1,6 @@
 # -*- coding: utf-8 -*-
 """webexteamssdk setup module."""
 
-
 import os
 from codecs import open
 
@@ -46,11 +45,14 @@
     "Topic :: Communications :: Chat",
 ]
 
+# TODO: Review the the dependencies when releasing WebexPythonSDK v2
+# PyJWT should be updated to ^2.8.0. Keeping it at 1.7.1 to maintain python v2
+# compatibility for now.
 INSTALLATION_REQUIREMENTS = [
     "future",
     "requests>=2.4.2",
     "requests-toolbelt",
-    "PyJWT",
+    "PyJWT==1.7.1",
 ]
 
 

webexteamssdk/api/guest_issuer.py

@@ -115,7 +115,10 @@ def create(self, sub, name, iss, exp, secret):
         key = base64.b64decode(secret)
         jwt_token = jwt.encode(payload, key, algorithm="HS256")
 
-        headers = {"Authorization": "Bearer " + jwt_token}
+        # TODO: Remove `.decode("utf-8")` when Python 2 is no longer supported
+        # v1.7.1 is the last release of PyJWT that supports Python 2, and it
+        # returns a byte string for the JWT token.
+        headers = {"Authorization": "Bearer " + jwt_token.decode("utf-8")}
 
         json_data = self._session.post(
             API_ENDPOINT + "/" + "login", headers=headers