Tensorflow2错误踩坑

ModuleNotFoundError: No module named 'tensorflow'

注意一下，确定你在跑脚本时候的python版本，假如是mac用户，由于mac本身自带低版本的python，所以python xxx.py默认是python2.x的版本，而正确的应该是根据你安装虚拟环境时候选择的python编译版本来，假如是python3，就用python3 xxx.py来执行

AttributeError: module 'tensorflow' has no attribute 'Session'

假如你是tensorflow2.x的，tf.Session()已经在2.0被废弃了， 请把hello world换成以下的内容，在2.0中已经可以直接使用print来打出constant内容。

import tensorflow as tf
msg = tf.constant('TensorFlow 2.0 Hello World')
tf.print(msg)

ssl.SSLCertVerificationError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate

假如你用了virtualenv，请在 env/lib/python3.x/site-packages/tensorflow_core/python/keras/utils/data_utils.py的导入语句下加入以下代码片段，

import requests
requests.packages.urllib3.disable_warnings()
import ssl

try:
    _create_unverified_https_context = ssl._create_unverified_context
except AttributeError:
    # Legacy Python that doesn't verify HTTPS certificates by default
    pass
else:
    # Handle target environment that doesn't support HTTPS verification
    ssl._create_default_https_context = _create_unverified_https_context

未完待续....