Fix for 'TypeError: string argument without an encoding' (regressing in python3).

rossigee · rossigee · commit daa40fd98518 · 2017-01-29T12:56:20.000+07:00
diff --git a/prometheus_client/exposition.py b/prometheus_client/exposition.py
@@ -146,7 +146,7 @@ def handle():
         '''
         if username is not None and password is not None:
             auth_value = "{0}:{1}".format(username, password)
-            auth_header = "Basic {0}".format(base64.b64encode(bytes(auth_value)))
+            auth_header = "Basic {0}".format(base64.b64encode(bytes(auth_value, 'utf8')))
             headers.append(['Authorization', auth_header])
         default_handler(url, method, timeout, headers, data)()
 
