What are some examples of using PDB in Python?

What are some examples of using PDB in Python?

PDB, or Python Debugger, is a powerful tool for debugging Python programs. Here are a few examples of its usage:

1. Setting Breakpoints: You can set breakpoints in your code using pdb.set_trace() to pause execution and inspect variables.
2. Step Through Code: Use commands like n (next) and s (step) to execute your code line by line.
3. Inspect Variables: You can print variable values using the p command followed by the variable name.
4. Continue Execution: Use the c command to continue execution until the next breakpoint.

Can you show me how to set a breakpoint?

Sure! To set a breakpoint in your code, you can insert import pdb; pdb.set_trace() at the line where you want the execution to pause. When you run your script, it will stop at that line, allowing you to inspect the current state.

What commands can I use while debugging?

While debugging with PDB, you can use several commands:

• h or help: Show help for commands.
• n: Execute the next line of code.
• s: Step into a function call.
• c: Continue execution until the next breakpoint.
• p <variable>: Print the value of a variable.

How do I exit the debugger?

To exit the debugger, you can use the command q to quit PDB and terminate the program.