debug python code in pycharm
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Title: Debugging Python Code in PyCharm: A Comprehensive Tutorial
Introduction:
Debugging is a crucial skill for any programmer, and PyCharm, a popular integrated development environment (IDE) for Python, provides powerful tools to help you identify and fix issues in your code. In this tutorial, we'll explore various debugging features in PyCharm and walk through a step-by-step example to debug a Python script.
Setting up PyCharm:
Make sure you have PyCharm installed on your machine. If not, download and install it from the official website: https://www.jetbrains.com/pycharm/dow...
Creating a Python Project:
Open PyCharm and create a new Python project. If you already have a project, open it.
Writing a Simple Python Script:
Create a new Python script (e.g., debug_example.py) with the following code:
This script defines a simple function divide_numbers that divides two numbers and a main function that calls it.
Adding a Breakpoint:
A breakpoint is a point in your code where the debugger will pause execution, allowing you to inspect variables and step through the code. Place a breakpoint in the divide_numbers function by clicking on the left margin next to the line number (e.g., line 2).
Running the Debugger:
Run the script in debug mode by clicking the green bug icon or using the keyboard shortcut (Shift + F9). The execution will pause at the breakpoint.
Debugging Panel:
At the bottom of the PyCharm window, you'll find the Debugging Panel. Here, you can inspect variables, navigate through the code, and control the debugging process.
Stepping through the Code:
Use the following buttons on the Debugging Panel to step through the code:
Inspecting Variables:
While debugging, you can inspect the values of variables. Hover over a variable to see its current value or add it to the Watches panel for continuous monitoring.
Fixing the Issue:
In our example, we notice a potential issue with division by zero. Step through the code using the debugger to identify and fix the problem.
Continuing Execution:
After fixing the issue, resume execution by clicking the Resume Program button or using the keyboard shortcut (F9). The script will run to completion.
Conclusion:
PyCharm's debugging tools make it easy to identify and fix issues in your Python code. By mastering breakpoints, stepping through code, and inspecting variables, you can streamline your debugging process and write more robust and error-free programs.
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