我想使用asyncio来获取一组图像的大小。
传递一组网址,我希望得到三个值,android:focusableInTouchMode="true"
。
然而,我无法得到任何东西。
我的代码有什么问题吗?
(x, y, channel)
答案 0 :(得分:2)
试试这个:
from PIL import Image
from io import BytesIO
import numpy as np
import asyncio
import concurrent.futures
import requests
def get_image_shape(path):
try:
img = Image.open(BytesIO(requests.get(path).content))
arr = np.array(img, dtype = np.uint8)
return arr.shape
except:
return (0,0,0)
async def main(url_list):
loop = asyncio.get_event_loop()
futures = [
loop.run_in_executor(
None,
get_image_shape,
url
)
for url in url_list]
return [response for response in await asyncio.gather(*futures)]
loop = asyncio.get_event_loop()
response = loop.run_until_complete(main(url_list))