#DEBUGGING PYTHON IN VISUAL STUDIO CODE INSTALL#
#DEBUGGING PYTHON IN VISUAL STUDIO CODE CODE#

In that, there is an option to debug the flask application. I am using VS Code(Visual Studio Code) as IDE.

#DEBUGGING PYTHON IN VISUAL STUDIO CODE CODE#

So, far everything is happy but if you want to debug this code then the problem arises. If you refresh the page or hit the URL again then the page viewed so far number changes. If you open in the browser you will see this Hello there, ashok! This page viewed so far 1 time(s) If you run app.py using below command your flask application starts python app.py # Adding function on_stop() as listener function when the application stops.Ĭode comments pretty much explain what exactly each function does. It calls the init() method to load page view counter where we ended last time andĬonvey at what port we need to start the flask application too. This is where code execution starts when the application starts. This takes the value next to /hello/ as argument andįorms greeting text with the current page view counter.Ĭontent = 'Hello there, ' + name + '! This page viewed so far ' + str(page_view_counter) + ' time(s)' This function triggers when the hello route is called. Then writes the current page view counter into the file for future use.Ĭounter_file = open(counter_file_name, home(): This function is triggered when the application stops and Where we stored last time when the application stopped.Ĭounter_file = open(counter_file_name, 'r') # Flask constructor takes the name of current module (_name_) as argument.Ĭounter_file_name = 'visitor_counter.txt' So we need to maintain somewhere it’s counter right when the server stops so we will store in a file at the time of server start we will load it. Let’s say you want to add little extra touch like creating a new API where you can page view counter. If you open in the browser you will see thisĬongrats!!! your application is up. If you run below command you can see your application is up and running. Let’s assume you stored the above code in app.py.

#DEBUGGING PYTHON IN VISUAL STUDIO CODE INSTALL#

To run this code we need python I am assuming you have it already if not please install I will recommend installing Python 3. Whenever we look for an example mostly we will get the code sample looking like this. To build a small API or web application in Python I think Flask is the best framework candidate to start with.

Debugging python in visual studio code