How do you use Python's pdb / breakpoint() to debug a Django view? Django व्यू को डिबग करने के लिए Python के pdb / breakpoint() का उपयोग कैसे करें?

Inserting Python's built-in breakpoint() (available since Python 3.7, invoking pdb by default) directly inside a view function pauses execution at that exact line when the request hits it, dropping into an interactive debugger in the terminal running the dev server, where you can inspect variables, step through code line by line, and evaluate expressions in the current scope.

This is especially useful for bugs that only reproduce with a real request (session state, middleware-modified request objects, complex queryset chains) where print-statement debugging is slow and imprecise. It only works with Django's synchronous development server (runserver), not in a production WSGI/ASGI deployment, and must be removed before committing since it would hang any request that reaches it.

def product_detail(request, pk):
    product = Product.objects.get(pk=pk)
    breakpoint()  # execution pauses here; inspect `product`, `request`, etc.
    return render(request, 'product_detail.html', {'product': product})