Python file used to test debugpy when called from an embedded application

my_sample_py_file.py

import sys
import os
import time

DEBUG_PORT = 5678

def my_sample_function():
    attach_debugger()

    print("My code in here")

    for i in range(2):
        print(i)
        time.sleep(1)

    print("Put a breakpoint on this line, then press Continue (F5)")
    print("The IDE will seem to be paused")

    for i in range(10):  # do something

        # if this sleep is uncommented, then the IDE will get off of the "paused state"
        # time.sleep(0.1)

        pass

    print("End of Python code")


def attach_debugger():
    # listen for debugpy client
    # waits for 2 minutes. If no connetion is found, proceeds

    try:
        import debugpy
    except ImportError:
        print("debugpy is required to run in debug mode.")
        print("Please run \"pip install debugpy\" on your Python interpreter")
        exit()

    # Workaround for: https://github.com/microsoft/debugpy/issues/262
    sys_exec = sys.executable
    sys.executable = sys.exec_prefix + "\\python.exe"

    try:
        debugpy.listen(DEBUG_PORT)
        print(f"Please attach debugger to port {DEBUG_PORT}")

        # blocks execution until debugger is attached
        start_time = time.time()
        while time.time() - start_time < 120:
            if debugpy.is_client_connected():
                break
            time.sleep(0.1)

        if debugpy.is_client_connected():
            print("Debugger attached")
        else:
            print("Timed out.")
            print("Will proceed without debugger.")

    except RuntimeError:
        print("Default port already in use.")

        try:
            _, port = debugpy.listen(0)
            print(f"Please attach debugger to port {port}")
            sys.stdout.flush()

            # blocks execution until debugger is attached
            start_time = time.time()
            while time.time() - start_time < 120:
                if debugpy.is_client_connected():
                    break
                time.sleep(0.1)

            if debugpy.is_client_connected():
                print("Debugger attached")
            else:
                print("Timed out!")
                print("Will proceed without debugger.")

        except OSError:
            print("Could not open any debug port.")
            print("Will proceed without debugger.")

    finally:
        sys.executable = sys_exec

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