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[英]How to convert Matplotlib figure to PIL Image object (without saving image)
[英]How can I upload a PIL Image object to a Discord chat without saving the image?
我正在尝试将 PIL Image 对象发送到不和谐聊天(尽管我不想保存文件)我有一个函数可以从互联网上收集图像,将它们垂直连接在一起,然后返回一个 PIL Image 对象。
下面的代码从我本地机器上的 PIL Image 对象创建一个文件图像,然后将其发送到 Discord 聊天。 我不想经常在我的机器上重新创建和保存文件图像。 如何只发送 PIL Image 对象,而不必每次发送请求时都保存图像?
from PIL import Image
from io import BytesIO
import requests
import discord
# Initializes Discord Client
client = discord.Client()
# List of market indexes
indexes = [
'https://finviz.com/image.ashx?dow',
'https://finviz.com/image.ashx?nasdaq',
'https://finviz.com/image.ashx?sp500'
]
# Returns a vertical image of market indexes
def create_image():
im = []
for index in indexes:
response = requests.get(index)
im.append(Image.open(BytesIO(response.content)))
dst = Image.new('RGB', (im[0].width, im[0].height + im[1].height + im[2].height))
dst.paste(im[0], (0, 0))
dst.paste(im[1], (0, im[0].height))
dst.paste(im[2], (0, im[0].height + im[1].height))
return dst
# Prints when bot is online
@client.event
async def on_ready():
print('{0.user} is online'.format(client))
# Uploads vertical image of market indexes when requested
@client.event
async def on_message(message):
if message.content.startswith('^index'):
create_image().save('index.png')
await message.channel.send(file=discord.File('index.png'))
解决方案:
@client.event
async def on_message(message):
if message.content.startswith('^index'):
with BytesIO() as image_binary:
create_image().save(image_binary, 'PNG')
image_binary.seek(0)
await message.channel.send(file=discord.File(fp=image_binary, filename='image.png'))
将我的解决方案作为单独的答案发布。 感谢 Ceres 的推荐。
@client.event
async def on_message(message):
if message.content.startswith('^index'):
with BytesIO() as image_binary:
create_image().save(image_binary, 'PNG')
image_binary.seek(0)
await message.channel.send(file=discord.File(fp=image_binary, filename='image.png'))
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