将从 API 收到的 png 格式文本转换为 png 文件 - python

Question

尝试在 python 中制作一个程序，请求以下 api 和 return 以及二维码。我返回的这个 QRcode 实际上是格式化文本，我需要将其放入 PNG 文件中。这是我的代码

import requests
import os


user = os.getlogin()
print("Hi there, " + user)
text = input("Enter a word: ")
request = requests.get("https://api.qrserver.com/v1/create-qr-code/?size=150x150&data=" + text)
response = request.text

file = open("output.txt", "w")
file.write(response)
file.close()
print("\nDone !")

尝试将其另存为 png 或文本时出现此错误:

'charmap' codec can't encode character '\ufffd' in position 0: character maps to <undefined>

Answer 1

不确定你说的是什么意思：

this QRcode i get back is actually formatted text and i need to put that into a PNG file

您得到的响应不是 plain-text。您可以检查响应 headers' Content-Type 字段并确认它是图像 (image/png)。您所要做的就是将响应字节写入文件：

def main():

    import requests

    text = "test"
    url = f"https://api.qrserver.com/v1/create-qr-code/?size=150x150&data={text}"

    response = requests.get(url)
    response.raise_for_status()

    with open("output.png", "wb") as file:
        file.write(response.content)

    print("Done.")

    return 0


if __name__ == "__main__":
    import sys
    sys.exit(main())

Answer 2

如果你想将响应保存为 png 你可以这样做

import requests
import os

user = os.getlogin()
print("Hi there, " + user)
text = input("Enter a word: ")
request = requests.get(
    "https://api.qrserver.com/v1/create-qr-code/?size=150x150&data=" + text)

open(text+'.png', 'wb').write(request.content)

print("Done !")

将从 API 收到的 png 格式文本转换为 png 文件 - python

converting png formatted text received from API to png file - python

python

api

format

qr-code

python-3.x