Debugging
Despite the most rigorous testing, the sad reality is that we still have to deal with bugs. Django tries its best to be as helpful as possible while reporting an error to help you in debugging. However, it takes a lot of skill to identify the root cause of the problem.
Thankfully, with the right set of tools and techniques, we can not only identify the bugs but also gain great insight into the runtime behavior of your code. Let's take a look at some of these tools.
Django debug page
If you have encountered any exception in development, that is, when DEBUG=True
, you would have already seen an error page similar to the following screenshot:
Typical Django error page when your DEBUG setting is turned on
Since it comes up so frequently, most developers tend to miss the wealth of information in this page. Here are some places to take a look at:
- Exception details: Obviously, you need to read what the exception tells you very carefully.
- Exception location: This is where Python thinks where the...