如何启动 Tensorboard？

Question

我正在关注https://www.tensorflow.org/guide/low_level_intro 上有关 Tensorflow 的介绍性指南，并设法使用

创建了一个“events.out”文件

writer = tf.summary.FileWriter('.')
writer.add_graph(tf.get_default_graph())
writer.flush() 

在我的 python 文件中并运行它。下一步是使用“shell 命令”tensorboard --logdir 在“终端”中启动 Tensorboard。这个怎么做？我应该使用什么终端？我试过windows powershell，但它似乎不起作用。它给出了错误

tensorboard : 术语“tensorboard”未被识别为 cmdlet、函数、脚本文件或可运行的程序。检查 名称的拼写，或者如果包含路径，请验证路径 是正确的，然后再试一次。在行：1 字符：1 +张量板--logdir + ~~~~~~~~~~~ + CategoryInfo : ObjectNotFound: (tensorboard:String) [], CommandNotFoundException + FullyQualifiedErrorId : CommandNotFoundException

Answer 1

使用 PowerShell 没问题。听起来您的 PATH 未配置为像其他人所说的那样查找 Tensorboard 二进制文件。你能告诉我你从pip show tensorflow得到什么吗？它应该有如下内容：

(1) ➜  ~ pip show tensorflow
DEPRECATION: Python 2.7 will reach the end of its life on January 1st, 2020. Please upgrade your Python as Python 2.7 won't be maintained after that date. A future version of pip will drop support for Python 2.7.
Name: tensorflow
Version: 1.12.0
Summary: TensorFlow is an open source machine learning framework for everyone.
Home-page: https://www.tensorflow.org/
Author: Google Inc.
Author-email: opensource@google.com
License: Apache 2.0
Location: c:\users\stephanwlee\venv\tf\lib\site-packages
Requires: enum34, keras-preprocessing, wheel, astor, backports.weakref, mock, tensorboard, termcolor, protobuf, gast, absl-py, grpcio, six, keras-applications, numpy
Required-by:

在上面的输出中，位置是告诉您二进制文件大致放置在哪里的重要部分。如果您像 TensorFlow 安装指南一样使用 virtualenv（一切都应该无缝设置，我建议您使用它），二进制文件应该在 c:\users\stephanwlee\venv\tf\Scripts 中。请检查路径是否在$env:path。

如果其中任何一个没有帮助，请在回复中添加来自 PowerShell 的 pip show tensorflow 和 $env:path 的结果，谢谢！

Answer 2

pip show tensorflow
Name: tensorflow
Version: 2.7.0
Summary: TensorFlow is an open source machine learning framework for everyone.
Home-page: https://www.tensorflow.org/
Author: Google Inc.
Author-email: packages@tensorflow.org
License: Apache 2.0
Location: c:\users\luis\appdata\local\packages\pythonsoftwarefoundation.python.3.9_qbz5n2kfra8p0\localcache\local-packages\python39\site-packages
Requires: absl-py, astunparse, flatbuffers, gast, google-pasta, grpcio, h5py, keras, keras-preprocessing, libclang, numpy, opt-einsum, protobuf, six, tensorboard, tensorflow-estimator, tensorflow-io-gcs-filesystem, termcolor, typing-extensions, wheel, wrapt
Required-by:
   LUIS@XEONE5-2620-v2  ~ 
❯
   LUIS@XEONE5-2620-v2  ~ 
❯ $env:path
C:\Program Files\Microsoft MPI\Bin\;C:\Program Files (x86)\Common Files\Oracle\Java\javapath;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0\;C:\WINDOWS\System32\OpenSSH\;C:\Program Files\Git\cmd;C:\mingw64\bin;C:\Program Files\Microsoft SQL Server\Client SDK\ODBC\170\Tools\Binn\;C:\Program Files (x86)\Microsoft SQL Server\150\Tools\Binn\;C:\Program Files\Microsoft SQL Server\150\Tools\Binn\;C:\Program Files\Microsoft SQL Server\150\DTS\Binn\;C:\Program Files\Azure Data Studio\bin;C:\Strawberry\c\bin;C:\Strawberry\perl\site\bin;C:\Strawberry\perl\bin;C:\Program Files\MiKTeX\miktex\bin\x64\;C:\Program Files (x86)\Cracklock\Bin;C:\Users\LUIS\AppData\Local\Microsoft\WindowsApps;C:\Program Files\Azure Data Studio\bin;;C:\Users\LUIS\AppData\Local\Programs\oh-my-posh\bin;C:\Users\LUIS\AppData\Local\Programs\oh-my-posh\themes;D:\Program Files\Microsoft VS Code\bin