Small fix to check for NoneType in APIError exception

Author: Shiyue Cheng

meraki/exceptions.py

@@ -14,10 +14,10 @@ def __init__(self, metadata, response):
         self.response = response
         self.tag = metadata['tags'][0]
         self.operation = metadata['operation']
-        self.status = self.response.status_code if self.response.status_code else None
-        self.reason = self.response.reason if self.response.reason else None
+        self.status = self.response.status_code if self.response is not None and self.response.status_code else None
+        self.reason = self.response.reason if self.response is not None and self.response.reason else None
         try:
-            self.message = self.response.json() if self.response.json() else None
+            self.message = self.response.json() if self.response is not None and self.response.json() else None
         except ValueError:
             self.message = self.response.text[:100]
         super(APIError, self).__init__(f'{self.tag}, {self.operation} - {self.status} {self.reason}, {self.message}')
@@ -31,10 +31,10 @@ def __init__(self, metadata, response, message):
         self.response = response
         self.tag = metadata['tags'][0]
         self.operation = metadata['operation']
-        self.status = self.response.status if self.response.status else None
-        self.reason = self.response.reason if self.response.reason else None
+        self.status = self.response.status if self.response is not None and self.response.status else None
+        self.reason = self.response.reason if self.response is not None and self.response.reason else None
         try:
-            self.message = self.response.json() if self.response.json() else None
+            self.message = self.response.json() if self.response is not None and self.response.json() else None
         except ValueError:
             self.message = self.response.text[:100]
         super().__init__(