pyauto-desktop 0.4.2

A desktop automation tool for image recognition.

pyauto-desktop

The resolution-agnostic, high-performance automation library for Python.

📘 Documentation: Read the full docs here

Built on mss and OpenCV. Designed for scalability. Includes a built-in GUI Inspector.

pyauto-desktop is a drop-in replacement for pyautogui designed for developers who need their automation scripts to work across different monitors, resolutions, and scaling settings (DPR).

It introduces the concept of a Session: a portable definition of your development environment that allows your code to auto-scale intelligently on any target machine.

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Why Switch?

Most automation libraries fail when moved from a Dev machine (e.g., 4K monitor, 125% scale) to a Production machine (e.g., 1080p, 100% scale). pyauto-desktop solves this mathematically.

Feature	pyauto-desktop	pyautogui
Cross-Resolution&DPR	Automatic. Uses Session logic to scale coordinates & images automatically.	Manual. Scripts break if resolution changes.
Performance	Up to 5x Faster. Uses mss & Pyramid Template Matching & Image caching.	Standard speed.
Logic	locateAny / locateAll built-in. Finds first or all matches from a list of images.	Requires complex for loops / try-except blocks.
Tooling	Built-in GUI Inspector to snip, edit, test, and generate code.	None. Requires external tools.
Backend	opencv-python, mss, pynput	pyscreeze, pillow, mouse

💻 Operating System Support

• Windows: ✅ Tested and Supported.
• Mac / Linux: ⚠️ Experimental. While the underlying libraries (OpenCV, Qt6) are cross-platform, these environments have not been verified. Use at your own risk.

📦 Installation

pyauto-desktop relies on robust standard libraries like OpenCV and Qt6.

pip install pyauto-desktop

The Core Concept: The "Session"

In pyautogui, you write code for your screen. If you share that script, it usually fails on other screens.

In pyauto-desktop, you define a Session that records your source resolution and DPR. At runtime, the library compares your source environment with the current machine and automatically scales all clicks and image searches.

The result: the same script works across 1080p, 1440p, 4K, and retina displays without modification.

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1. The GUI Inspector (No More Guessing Coordinates)

You don’t write the automation code by hand. Instead, open the Inspector to:

• Snip UI elements directly from the screen
• Test image matches in real time
• Auto-generate production-ready Python code

import pyauto_desktop

# Opens the snipping and code generation tool
pyauto_desktop.inspector()

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2. Generated Code Example

The code below works on a 1080p screen, a 4K screen, or a retina display without modification.

import pyauto_desktop

# Define the environment where you CREATED the script (e.g., your 1440p monitor)
# The library detects the CURRENT screen at runtime and scales accordingly
session = pyauto_desktop.Session(
    screen=1,
    source_resolution=(2560, 1440),
    source_dpr=1.25,
    scaling_type="dpr"
)

# Search for the image
# 'grayscale' and 'confidence' behave like standard automation tools
# 'use_pyramid=True' (default) handles slight size variations in the UI
image = session.locateOnScreen(
    'images/submit_btn.png',
    grayscale=True,
    confidence=0.9
)

if image:
    session.click(image)

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⚠️ Important Note on Auto-Scaling & Confidence

The auto-scaling logic is robust, but not perfect. It is possible when an image is scaled down, a small amount of pixel detail can be lost, which affects template matching that could require confidence score tweaking.

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Credits

Special thanks to the developers below for making this module possible:

• PyQt6 by Riverbank Computing - The GUI framework.
• OpenCV - Computer vision and image processing.
• NumPy - Fundamental package for scientific computing.
• Pillow - Python Imaging Library.
• RapidOCR - OCR capabilities.

Utilities

• pynput by Moses Palmér - Monitor and control input devices.
• mss by Mickaël Schoentgen - Fast cross-platform screenshots.
• pydirectinput by Ben Johnson - Direct input for games.
• pywinctl by Kalmat - Cross-platform window control.