VMS IDE Python

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Python

Python debugger allows debugging Python scripts on VMS.

Features

  1. Running python script on VMS side
  2. Breakpoints
  3. Displaying local variables in each accessible frame
  4. Multithreading
  5. Post-mortem information about unhandled exceptions.
  6. Changing variable value
  7. Jump to cursor inside a frame

How to run

  1. Setup SSH settings
  2. Setup project settings: because Python scripts do not need compilation, not all settings are required. Only those which are required for synchronization. So "outdir", "root" and include/exclude masks do matter. Outdir is used only for holding debugger own scripts (tracer and server). Masks used only for synchronization. There is no difference between whether it is a source, headers e.t.c.
  3. Setup launch: open launch.json, then "Add configuration" => "VMS IDE: Launch Python script".
Property Meaning
"type": "vms python debugger" do not change
"request": "launch" do not change
"name": "Launch Python Script" write an unique name
"script": "${file}" file name or "${file}" for currently opened file under cursor
"port": "55005-55025" range of local ports on VMS, used for communication between tracer and server scripts
"arguments": "" script arguments

Select this launch configuration and press F5. Script always stops at the first line.