[Python] Python:prompt_toolkit TextArea.buffer.cursor_position += 4 setting to 4 instead of...

i am trying to make a text editor with prompt_toolkit. while implementing tab indentation, i came across this weird behaviour:


def keybinds(self):
kb = KeyBindings()
@kb.add("tab")
def _(event):
if config.get("functional.tabspace"):
self.textArea.text += " " * config.get("functional.tabwidth")
self.textArea.buffer.cursor_position += config.get("functional.tabwidth")

return kb

this sets the cursor position to 4 ( functional.tabwidth = 4 ), instead of adding 4 to the cursor position.

how do i fix this?

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