Introduction:

Debugging is the skill which I feel very few do it perfectly. But it is a must-have skill for every programmer.

In Python, you can easily debug your code with the help of python’s breakpoint() function.

Note: There are other ways to debug your Python code, the most common way is to use your IDE’s debugger such as PyCharm. VSCode also comes with a great built-in debugger.

Let’s do it:

Debugging starts by creating a breakpoint.

Create a breakpoint by inserting the breakpoint() function just before the suspected line.

a = 1
b = 0
breakpoint()
c = a/b  # ZeroDivisionError

Whenever the Python interpreter hits this breakpoint() method, it will pause the execution and wait for your response in the terminal.
In the terminal, you have a Python shell like interface called 'pdb shell', where you can access all the variables, function, etc. of the current execution context.
There are some shortcut keys for navigating in the ‘pdb shell’. For listing all the shortcuts, you can use help command by entering h.

Note: breakpoint() only works above Python 3.7, to debug on older versions of Python, you should use 'pdb 'module as given in below example.

import pdb

a = 1
b = 0
pdb.set_trace()
c = a/b  # ZeroDivisionError

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How to debug Python (Django) using `breakpoint()` function?

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