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+Debugging PySide with VSCode (Linux + Windows)
+**********************************************
+
+VSCode enables you to use more than one debugger in a single debugging session.
+This means that we can use Python PDB and GDB (or the MSVC debugger for Windows)
+in a single session. With VSCode you would be able to do the following:
+
+* See the call stacks for both Python and C++ together.
+* Put breakpoints in both the Python and the C++ code.
+* Step from Python to C++ code and vice versa.
+
+For Windows, see :ref:`creating_windows_debug_builds`.
+
+Let's get started with setting up everything and debugging a Python process.
+
+Setting the Python interpreter
+------------------------------
+
+In order to debug Python code, it is necessary to set the correct Python
+interpreter in VSCode - this will ensure that all Python integrations of VSCode
+use the same interpreter. However, this does not affect C++ debugging, and the
+Python executable path must be set for the corresponding launch target
+separately (see the section below).
+
+To set the Python interpreter, open a Python file and click the corresponding
+option on the right side of the VSCode status bar, which should look similar to
+this:
+
+.. image:: python_set_interpreter.png
+ :alt: set Python interpreter
+ :align: center
+
+Alternatively, open the VSCode command palette (F1 or Ctrl + Shift + P) and
+search for "Python: Select Interpreter".
+
+Creating Configurations in launch.json
+--------------------------------------
+
+``Run -> Add Configuration -> Python -> Python File``
+
+This should create a launch.json file which looks like this:
+
+.. code-block:: javascript
+
+ {
+ // Use IntelliSense to learn about possible attributes.
+ // Hover to view descriptions of existing attributes.
+ // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+ "version": "0.2.0",
+ "configurations": [
+ {
+ "name": "Python: Current File",
+ "type": "python",
+ "request": "launch",
+ "program": "${file}",
+ "console": "integratedTerminal"
+ }
+ ]
+ }
+
+It should already consist of a configuration named "Python: Current File",
+which allows us to debug the current open Python file.
+
+Now, we need to add a configuration to attach the C++ debugger to the Python
+process that is already running in debug mode. If you have the C/C++ extension
+installed and the appropriate debugger for your system, VSCode should be able
+to automatically offer to add a configuration. On Linux, this is suggested with
+the name
+
+* "C/C++: (gdb) Attach"
+
+and on Windows with the name
+
+* "C/C++: (Windows) Attach"
+
+Your launch.json should now look like this on Linux:
+
+.. code-block:: javascript
+
+ {
+ // Use IntelliSense to learn about possible attributes.
+ // Hover to view descriptions of existing attributes.
+ // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+ "version": "0.2.0",
+ "configurations": [
+ {
+ "name": "Python: Current File",
+ "type": "python",
+ "request": "launch",
+ "program": "${file}",
+ "console": "integratedTerminal"
+ },
+ {
+ "name": "(gdb) Attach",
+ "type": "cppdbg",
+ "request": "attach",
+ "program": "/path/to/python",
+ "processId": "${command:pickProcess}",
+ "MIMode": "gdb", "setupCommands": [
+ {
+ "description": "Enable pretty-printing for gdb",
+ "text": "-enable-pretty-printing",
+ "ignoreFailures": true
+ }
+ ]
+ }
+ ]
+ }
+
+And like this on Windows:
+
+.. code-block:: javascript
+
+ {
+ // Use IntelliSense to learn about possible attributes.
+ // Hover to view descriptions of existing attributes.
+ // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+ "version": "0.2.0",
+ "configurations": [
+ {
+ "name": "Python: Current File",
+ "type": "python",
+ "request": "launch",
+ "program": "${file}",
+ "console": "integratedTerminal"
+ },
+ {
+ "name": "(Windows) Attach",
+ "type": "cppvsdbg",
+ "request": "attach",
+ "processId": "${command:pickProcess}",
+ }
+ ]
+ }
+
+For Linux, also make sure that the value of "program" refers to your Python
+interpreter inside your virtual environment (for Windows this is not needed).
+We need the processId to attach the gdb debugger to the process. With
+"${command:pickProcess}", we find the processId on the go, as we will see later.
+
+Now, we are ready to debug.
+
+Debug The Process
+-----------------
+
+1. Set a breakpoint in the Python code.
+
+2. Go to ``Run And Debug`` (Ctrl + Shift + D) and run the "Python: Current File"
+ by clicking the run symbol (green right-arrow). This will hit the breakpoint
+ and will halt the Python debugger.
+
+3. Using the drop-down menu change from "Python:
+ Current File" to "(gdb) Attach" or "(Windows) Attach". Your setup should now
+ look like this.
+
+ .. image:: breakpoint_gdb.png
+ :alt: breakpoint before attach gdb
+ :align: center
+
+4. Run "(gdb) Attach" or "(Windows) Attach" and this should ask you for the
+ processId of the Python process to which you want to attach the C++ debugger.
+ VSCode also lets you search for the process by its name.
+
+ .. tip:: You can find the processId by running ``ps aux | grep python``
+
+ .. image:: find_process_gdb.png
+ :alt: find process vscode
+ :align: center
+
+5. VSCode might now ask you for superuser permissions. In that case, type 'y'
+ and enter your password.
+
+ .. code-block:: bash
+
+ Superuser access is required to attach to a process. Attaching as
+ superuser can potentially harm your computer. Do you want to continue?
+ [y/N]_
+
+6. That is it. You should now be able to hit the breakpoints that you have set
+ on the C++ counterparts.
+
+ .. figure:: audioformat_wrapper.png
+ :alt: Breakpoint set on the shiboken wrapper class
+ :align: left
+
+ Breakpoint set on the shiboken wrapper class
+
+ .. figure:: audioformat_cpp.png
+ :alt: Breakpoint set on C++ implementation
+ :align: left
+
+ Breakpoint set on C++ implementation