break-debugger-on-first-line-of-program.md

Break Debugger On First Line Of Program

One of the things I appreciate about how Delve (the debugger for Go) works by default is that when you start it up, it immediately breaks on the first line of the program. This is as good a starting point as any regardless of whether you have other breakpoints set.

As I was reading through the VS Code Python Debugger configuration docs, I noticed an option called stopOnEntry. It is turned off by default, but if you turn it on, then you get the same behavior as I described for Delve. Nice!

This can be configured in a .vscode/launch.json file:

{
  "version": "0.2.0",
  "configurations": [
    {
      "name": "Python Debugger: Current File",
      "type": "debugpy",
      "request": "launch",
      "program": "${file}",
      "console": "integratedTerminal",
      "stopOnEntry": true
    }
  ]
}

Now, when running this debugger configuration profile, you'll break the debugger on the first line of the program. From there add more breakpoints, start stepping through, etc.