深度学习框架 Tensorflow -Python初体验1.Hello World

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环境:

1.Anaconda3(64-bit)

2.Python 3.6.5

import  os

import  tensorflow as tf

a=tf.constant("hello world")
print(a) #Tensor("Const:0", shape=(), dtype=string)
print(type(a)) #<class 'tensorflow.python.framework.ops.Tensor'>
sess = tf.Session()
print(sess) #<tensorflow.python.client.session.Session object at 0x000001E332C9FCC0>
print(type(sess)) #<class 'tensorflow.python.client.session.Session'>

print(sess.run(a)) #b'hello world'

异常信息:

1.
D:\softWare\anaconda3\anaconda\lib\site-packages\h5py\__init__.py:36:
FutureWarning: Conversion of the second argument of issubdtype from `float` to `np.floating` is deprecated. In future, it will be treated as `np.float64 == np.dtype(float).type`.from ._conv import register_converters as _register_converters

解决方案:

升级h5py(本环境下h5py 2.7.1-->2.8.0)完美解决

2.

2018-09-22 13:56:18.803780: I tensorflow/core/platform/cpu_feature_guard.cc:141]

Your CPU supports instructions that this TensorFlow binary was not compiled to use: AVX AVX2

解决方案:

import  os
​​​​​​​os.environ['TF_CPP_MIN_LOG_LEVEL'] = '2'

os.environ["TF_CPP_MIN_LOG_LEVEL"]='1'# 这是默认的显示等级,显示所有信息 
os.environ["TF_CPP_MIN_LOG_LEVEL"]='2' # 只显示 warning 和 Error 
os.environ["TF_CPP_MIN_LOG_LEVEL"]='3' # 只显示 Error