xbindkeys はカーソルを右または左キーにバインドします。

このPythonスクリプトはフラット入力パッケージが意図した目標を達成しました。

import time
from pynput import mouse, keyboard
from pynput.keyboard import Key, Controller

keyboard = Controller()

prevX = -1
def on_move(x, y):
  global prevX
  if prevX == -1:
    prevX = x
  elif prevX < x:
    keyboard.press(Key.right)
    keyboard.release(Key.right)
  elif prevX > x:
    keyboard.press(Key.left)
    keyboard.release(Key.left)
  if prevX != x:
    prevX = x

listener = mouse.Listener(
  on_move=on_move)
listener.daemon = True
listener.start()

while True:
  time.sleep(1)

特定の方向で特定の数のマウスイベントの後にのみキーを押すように調整します。

import time
from pynput import mouse, keyboard
from pynput.keyboard import Key, Controller

keyboard = Controller()

sensitivity = 20 # number of events to trigger key press
prevX = -1
leftEvents = 0
rightEvents = 0
def on_move(x, y):
  global prevX
  global leftEvents
  global rightEvents

  if prevX == -1:
    prevX = x
  elif prevX < x:
    rightEvents += 1
    leftEvents = 0
  elif prevX > x:
    leftEvents += 1
    rightEvents = 0
  if rightEvents == sensitivity:
    keyboard.press(Key.right)
    keyboard.release(Key.right)
    rightEvents = 0
  if leftEvents == sensitivity:
    keyboard.press(Key.left)
    keyboard.release(Key.left)
    leftEvents = 0
  if prevX != x:
    prevX = x

listener = mouse.Listener(
  on_move=on_move)
listener.daemon = True
listener.start()

while True:
  time.sleep(1)