【pyautogui 报错】OSError: Failed to read X because file is missing, has improper permissions

Question

报错：
OSError: Failed to read D:\STEFANOS\python oolsuto\icons\jupyter.png because file is missing, has improper permissions, or is an unsupported or invalid format

[ WARN:0@54.445] global loadsave.cpp:241 cv::findDecoder imread_('D:\STEFANOS\python oolsuto\icons\jupyter.png'): can't open/read file: check file path/integrity

程序：

import pyautogui 
#import pyperclip
import time
 
def open_jupyter():
    print('Opening jupyter...')
    time.sleep(1)
    
    try:
        location = pyautogui.locateOnScreen("D:\STEFANOS\python\tools\auto\icons\jupyter.png",confidence=0.5)
        print(location)
        pyautogui.click(location)
    except pyautogui.ImageNotFoundException:
        print("Sorry I cannot locate Jupyter")

    time.sleep(1)


open_jupyter()

Answer 1

你遇到的错误 OSError: Failed to read ... because file is missing, has improper permissions, or is an unsupported or invalid format 表明程序无法读取指定路径的图像文件。以下是解决该问题的一些步骤：

可能原因及解决方法：
文件路径错误:

确认文件路径是否正确。你在代码中的路径是 D:\STEFANOS\python oolsuto\icons\jupyter.png，但是注释中的路径是 D:\STEFANOS\python\tools\auto\icons\jupyter.png。请确认使用的路径是正确的。
Windows 路径中反斜杠 () 需要转义，或者使用原始字符串（r"..."）。例如：

location = pyautogui.locateOnScreen(r"D:\STEFANOS\python\tools\auto\icons\jupyter.png", confidence=0.5)

文件权限问题:

确认你的程序有权限读取该文件。尝试手动打开该文件以检查是否存在权限问题。
文件格式问题:

确认文件是有效的 PNG 格式。尝试用图像查看器打开文件，确保文件不是损坏的。
图像文件缺失:

确认文件在指定路径下是否存在。你可以使用以下代码检查文件是否存在：

import os
file_path = r"D:\STEFANOS\python\tools\auto\icons\jupyter.png"
if os.path.isfile(file_path):
    print("文件存在")
else:
    print("文件不存在")

代码示例
根据以上的可能原因，你可以调整代码如下：

import pyautogui
import time
import os

def open_jupyter():
    print('Opening jupyter...')
    time.sleep(1)
    
    file_path = r"D:\STEFANOS\python\tools\auto\icons\jupyter.png"
    
    if os.path.isfile(file_path):
        try:
            location = pyautogui.locateOnScreen(file_path, confidence=0.5)
            if location:
                print(location)
                pyautogui.click(location)
            else:
                print("Sorry, I cannot locate Jupyter")
        except pyautogui.ImageNotFoundException:
            print("Sorry, I cannot locate Jupyter")
        except OSError as e:
            print(f"OS error: {e}")
    else:
        print(f"文件 {file_path} 不存在")
    
    time.sleep(1)

open_jupyter()