Change npm to Python.

Author: vmagelo

articles/service-bus-messaging/service-bus-python-how-to-use-queues.md

@@ -79,7 +79,7 @@ Note down the following, which you'll use in the code below:
 
 ### [Connection string](#tab/connection-string)
 
-1. To install the required Python packages for this Service Bus tutorial, open a command prompt that has `npm` in its path, change the directory to the folder where you want to have your samples.
+1. To install the required Python packages for this Service Bus tutorial, open a command prompt that has Python in its path, change the directory to the folder where you want to have your samples.
 
 1. Install the following packages by running: