如何处理 TensorFlow 中的错误 "certificate verify failed: certificate has expired"？

Question

我刚刚开始使用 CIFAR10 数据集在 Python 中使用 TensorFlow 创建图像分类程序，遵循 this 教程。到目前为止，这是我的代码：

import tensorflow as tf
from tensorflow.keras import datasets, layers, models
import matplotlib.pyplot as plt
import numpy as np
datasets.cifar10.load_data()

我收到如下错误：

  File "C:\Users\Admin\AppData\Local\Programs\Python\Python39\lib\urllib\request.py", line 1346, in do_open
    h.request(req.get_method(), req.selector, req.data, headers,
  File "C:\Users\Admin\AppData\Local\Programs\Python\Python39\lib\http\client.py", line 1257, in request
    self._send_request(method, url, body, headers, encode_chunked)
  File "C:\Users\Admin\AppData\Local\Programs\Python\Python39\lib\http\client.py", line 1303, in _send_request
    self.endheaders(body, encode_chunked=encode_chunked)
  File "C:\Users\Admin\AppData\Local\Programs\Python\Python39\lib\http\client.py", line 1252, in endheaders
    self._send_output(message_body, encode_chunked=encode_chunked)
  File "C:\Users\Admin\AppData\Local\Programs\Python\Python39\lib\http\client.py", line 1012, in _send_output
    self.send(msg)
  File "C:\Users\Admin\AppData\Local\Programs\Python\Python39\lib\http\client.py", line 952, in send
    self.connect()
  File "C:\Users\Admin\AppData\Local\Programs\Python\Python39\lib\http\client.py", line 1426, in connect
    self.sock = self._context.wrap_socket(self.sock,
  File "C:\Users\Admin\AppData\Local\Programs\Python\Python39\lib\ssl.py", line 500, in wrap_socket
    return self.sslsocket_class._create(
  File "C:\Users\Admin\AppData\Local\Programs\Python\Python39\lib\ssl.py", line 1040, in _create
    self.do_handshake()
  File "C:\Users\Admin\AppData\Local\Programs\Python\Python39\lib\ssl.py", line 1309, in do_handshake
    self._sslobj.do_handshake()
ssl.SSLCertVerificationError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: certificate has expired (_ssl.c:1129)

此错误是什么意思，我该如何解决？我是 TensorFlow 的初学者，未能找到解决此问题的确切方法。

Answer 1

最近在使用 python 3.7 时遇到了类似的错误，只是像这样关闭了验证：

import tensorflow as tf
from tensorflow.keras import datasets, layers, models
import matplotlib.pyplot as plt
import numpy as np
import ssl

ssl._create_default_https_context = ssl._create_unverified_context

datasets.cifar10.load_data()

查看此 issue 了解更多信息。您当然可以尝试为您的 Python 版本安装缺少的证书。我可以确认您的代码适用于 Google Colab。所以这肯定是因为缺少一些证书。

如何处理 TensorFlow 中的错误 "certificate verify failed: certificate has expired"？

How can I handle the error "certificate verify failed: certificate has expired" in TensorFlow?

python

keras

tensorflow

tensorflow2.0