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Python 屏幕截圖

Python

白衣非少年 2023-07-11 15:39:24

我正在嘗試編寫一個(gè)程序來使用全局熱鍵進(jìn)行屏幕截圖。下面是對(duì)應(yīng)的代碼：from datetime import datetimeimport osfrom pynput import keyboardimport pyautoguiimport pathlibdef on_activate(): today = datetime.now() d = today.strftime("%Y-%m-%d-%H-%M-%S") myScreenshot = pyautogui.screenshot(region=(200,200, 1720, 800)) time_stamp = '{:%y%d%m}'.format(today) fpath = pathlib.Path("C:","Users","Desktop","TestScreenCap", time_stamp) if not os.path.exists(fpath): os.makedirs(fpath) myScreenshot.save(pathlib.Path(fpath,d,".jpg"))def for_canonical(f): return lambda k: f(l.canonical(k))hotkey = keyboard.HotKey( keyboard.HotKey.parse('<ctrl>+<alt>+h'), on_activate)with keyboard.Listener( on_press=for_canonical(hotkey.press), on_release=for_canonical(hotkey.release)) as l: l.join()錯(cuò)誤信息：Unhandled exception in listener callbackTraceback (most recent call last): File "C:\Users\PycharmProjects\untitled1\venv\lib\site-packages\PIL\Image.py", line 2138, in save format = EXTENSION[ext]KeyError: ''The above exception was the direct cause of the following exception:Traceback (most recent call last): File "C:\Users\PycharmProjects\untitled1\venv\lib\site-packages\pynput\_util\__init__.py", line 211, in inner return f(self, *args, **kwargs) File "C:\Users\PycharmProjects\untitled1\venv\lib\site-packages\pynput\keyboard\_win32.py", line 280, in _process self.on_press(key) File "C:\Users\PycharmProjects\untitled1\venv\lib\site-packages\pynput\_util\__init__.py", line 127, in inner if f(*args) is False: File "C:/Users/PycharmProjects/untitled1/123.py", line 18, in <lambda> return lambda k: f(l.canonical(k)) File "C:\Users\PycharmProjects\untitled1\venv\lib\site-packages\pynput\keyboard\__init__.py", line 182, in press

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1 回答

Smart貓小萌

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這里是固定代碼：

from datetime import datetime

import os

from pynput import keyboard

import pyautogui

import pathlib

def on_activate():

today = datetime.now()

d = today.strftime("%Y-%m-%d-%H-%M-%S")

myScreenshot = pyautogui.screenshot(region=(200,200, 1720, 800))

time_stamp = '{:%y%d%m}'.format(today)

fpath = pathlib.Path("C:\\","Users","Desktop","TestScreenCap", time_stamp)

if not os.path.exists(fpath):

os.makedirs(fpath)

myScreenshot.save(pathlib.Path(fpath,d + ".jpg"))

def for_canonical(f):

return lambda k: f(l.canonical(k))

hotkey = keyboard.HotKey(

keyboard.HotKey.parse('<ctrl>+<alt>+h'),

on_activate)

with keyboard.Listener(

on_press=for_canonical(hotkey.press),

on_release=for_canonical(hotkey.release)) as l:

l.join()

問題是您正在使用：

myScreenshot.save(pathlib.Path(fpath,d,".jpg"))

該函數(shù)pathlib.Path(fpath,d,".jpg")將字符串添加\到每個(gè)字符串的末尾，因此您嘗試保存文件的路徑是：

C:Users\Desktop\TestScreenCap\200309\2020-09-03-16-50-20\.jpg

正如您所看到的，文件名是引發(fā)異常的擴(kuò)展名。

只需替換為：myScreenshot.save(pathlib.Path(fpath,d + ".jpg"))

指定路徑的另一個(gè)問題是它C:被解釋為Drive，所以當(dāng)你保存函數(shù)時(shí)，保存到你的程序當(dāng)前運(yùn)行的路徑，而不是真正的指定路徑。要修復(fù)此部分，只需替換C:為C:\\.

閱讀您的代碼，我認(rèn)為您希望將屏幕截圖保存在當(dāng)前用戶桌面中，如果是這樣，請(qǐng)將行：替換為fpath = pathlib.Path("C:\\","Users","Desktop","TestScreenCap", time_stamp)并fpath = pathlib.Path(os.path.join(os.path.join(os.environ['USERPROFILE']), 'Desktop'), time_stamp)在頂部添加import os. 有了這個(gè)，你就不需要關(guān)心這條道路的正確世代。

反對(duì) 回復(fù) 2023-07-11