fix a bug for running IPerl in notebook-http mode

Author: B1nj0y

kernel_gateway/notebook_http/handlers.py

@@ -184,7 +184,7 @@ def _handle_request(self):
                 'headers' : headers_to_dict(self.request.headers)
             })
             # Turn the request string into a valid code string
-            request_code = format_request(request)
+            request_code = format_request(request, self.kernel_name)
 
             # Run the request and source code and yield until there's a result
             access_log.debug('Request code for notebook cell is: {}'.format(request_code))

kernel_gateway/notebook_http/request_utils.py

@@ -12,7 +12,7 @@
 APPLICATION_JSON = 'application/json'
 TEXT_PLAIN = 'text/plain'
 
-def format_request(bundle):
+def format_request(bundle, kernel_name):
     """Creates an assignment statement of bundle JSON-encoded to a variable
     named `REQUEST`.
 
@@ -22,7 +22,10 @@ def format_request(bundle):
         `REQUEST = "<json-encoded expression>"`
     """
     bundle = json.dumps(bundle)
-    statement = "REQUEST = {}".format(bundle)
+    if kernel_name == 'iperl':
+        statement = "my $REQUEST = {}".format(bundle)
+    else:
+        statement = "REQUEST = {}".format(bundle)
     return statement
 
 def parameterize_path(path):