我是python的新手，所以我没有使用任何环境，我要做的就是尝试使用pip安装tensorflow并获取以下信息：
> pip install tensorflow
Collecting tensorflow
Using cached tensorflow-2.3.1-cp38-cp38-win_amd64.whl (342.5 MB)
Requirement already satisfied: google-pasta>=0.1.8 in c:\users\teren\appdata\local\packages\pythonsoftwarefoundation.python.3.8_qbz5n2kfra8p0\localcache\local-packages\python38\site-packages (from tensorflow) (0.2.0)
Requirement already satisfied: tensorboard<3,>=2.3.0 in c:\users\teren\appdata\local\packages\pythonsoftwarefoundation.python.3.8_qbz5n2kfra8p0\localcache\local-packages\python38\site-packages (from tensorflow) (2.3.0)
Requirement already satisfied: grpcio>=1.8.6 in c:\users\teren\appdata\local\packages\pythonsoftwarefoundation.python.3.8_qbz5n2kfra8p0\localcache\local-packages\python38\site-packages (from tensorflow) (1.33.2)
Requirement already satisfied: numpy<1.19.0,>=1.16.0 in c:\users\teren\appdata\local\packages\pythonsoftwarefoundation.python.3.8_qbz5n2kfra8p0\localcache\local-packages\python38\site-packages (from tensorflow) (1.18.5)
Requirement already satisfied: astunparse==1.6.3 in c:\users\teren\appdata\local\packages\pythonsoftwarefoundation.python.3.8_qbz5n2kfra8p0\localcache\local-packages\python38\site-packages (from tensorflow) (1.6.3)
Requirement already satisfied: opt-einsum>=2.3.2 in c:\users\teren\appdata\local\packages\pythonsoftwarefoundation.python.3.8_qbz5n2kfra8p0\localcache\local-packages\python38\site-packages (from tensorflow) (3.3.0)
Requirement already satisfied: wrapt>=1.11.1 in c:\users\teren\appdata\local\packages\pythonsoftwarefoundation.python.3.8_qbz5n2kfra8p0\localcache\local-packages\python38\site-packages (from tensorflow) (1.12.1)
Requirement already satisfied: wheel>=0.26 in c:\users\teren\appdata\local\packages\pythonsoftwarefoundation.python.3.8_qbz5n2kfra8p0\localcache\local-packages\python38\site-packages (from tensorflow) (0.35.1)
Requirement already satisfied: h5py<2.11.0,>=2.10.0 in c:\users\teren\appdata\local\packages\pythonsoftwarefoundation.python.3.8_qbz5n2kfra8p0\localcache\local-packages\python38\site-packages (from tensorflow) (2.10.0)
Requirement already satisfied: six>=1.12.0 in c:\users\teren\appdata\local\packages\pythonsoftwarefoundation.python.3.8_qbz5n2kfra8p0\localcache\local-packages\python38\site-packages (from tensorflow) (1.15.0)
Requirement already satisfied: tensorflow-estimator<2.4.0,>=2.3.0 in c:\users\teren\appdata\local\packages\pythonsoftwarefoundation.python.3.8_qbz5n2kfra8p0\localcache\local-packages\python38\site-packages (from tensorflow) (2.3.0)
Requirement already satisfied: gast==0.3.3 in c:\users\teren\appdata\local\packages\pythonsoftwarefoundation.python.3.8_qbz5n2kfra8p0\localcache\local-packages\python38\site-packages (from tensorflow) (0.3.3)
Requirement already satisfied: absl-py>=0.7.0 in c:\users\teren\appdata\local\packages\pythonsoftwarefoundation.python.3.8_qbz5n2kfra8p0\localcache\local-packages\python38\site-packages (from tensorflow) (0.11.0)
Requirement already satisfied: termcolor>=1.1.0 in c:\users\teren\appdata\local\packages\pythonsoftwarefoundation.python.3.8_qbz5n2kfra8p0\localcache\local-packages\python38\site-packages (from tensorflow) (1.1.0)
Requirement already satisfied: keras-preprocessing<1.2,>=1.1.1 in c:\users\teren\appdata\local\packages\pythonsoftwarefoundation.python.3.8_qbz5n2kfra8p0\localcache\local-packages\python38\site-packages (from tensorflow) (1.1.2)
Requirement already satisfied: protobuf>=3.9.2 in c:\users\teren\appdata\local\packages\pythonsoftwarefoundation.python.3.8_qbz5n2kfra8p0\localcache\local-packages\python38\site-packages (from tensorflow) (3.13.0)
Requirement already satisfied: tensorboard-plugin-wit>=1.6.0 in c:\users\teren\appdata\local\packages\pythonsoftwarefoundation.python.3.8_qbz5n2kfra8p0\localcache\local-packages\python38\site-packages (from tensorboard<3,>=2.3.0->tensorflow) (1.7.0)
Requirement already satisfied: markdown>=2.6.8 in c:\users\teren\appdata\local\packages\pythonsoftwarefoundation.python.3.8_qbz5n2kfra8p0\localcache\local-packages\python38\site-packages (from tensorboard<3,>=2.3.0->tensorflow) (3.3.3)
Requirement already satisfied: setuptools>=41.0.0 in c:\program files\windowsapps\pythonsoftwarefoundation.python.3.8_3.8.1776.0_x64__qbz5n2kfra8p0\lib\site-packages (from tensorboard<3,>=2.3.0->tensorflow) (49.2.1)
Requirement already satisfied: werkzeug>=0.11.15 in c:\users\teren\appdata\local\packages\pythonsoftwarefoundation.python.3.8_qbz5n2kfra8p0\localcache\local-packages\python38\site-packages (from tensorboard<3,>=2.3.0->tensorflow) (1.0.1)
Requirement already satisfied: google-auth-oauthlib<0.5,>=0.4.1 in c:\users\teren\appdata\local\packages\pythonsoftwarefoundation.python.3.8_qbz5n2kfra8p0\localcache\local-packages\python38\site-packages (from tensorboard<3,>=2.3.0->tensorflow) (0.4.2)
Requirement already satisfied: google-auth<2,>=1.6.3 in c:\users\teren\appdata\local\packages\pythonsoftwarefoundation.python.3.8_qbz5n2kfra8p0\localcache\local-packages\python38\site-packages (from tensorboard<3,>=2.3.0->tensorflow) (1.23.0)
Requirement already satisfied: requests<3,>=2.21.0 in c:\users\teren\appdata\local\packages\pythonsoftwarefoundation.python.3.8_qbz5n2kfra8p0\localcache\local-packages\python38\site-packages (from tensorboard<3,>=2.3.0->tensorflow) (2.24.0)
Requirement already satisfied: requests-oauthlib>=0.7.0 in c:\users\teren\appdata\local\packages\pythonsoftwarefoundation.python.3.8_qbz5n2kfra8p0\localcache\local-packages\python38\site-packages (from google-auth-oauthlib<0.5,>=0.4.1->tensorboard<3,>=2.3.0->tensorflow) (1.3.0)
Requirement already satisfied: pyasn1-modules>=0.2.1 in c:\users\teren\appdata\local\packages\pythonsoftwarefoundation.python.3.8_qbz5n2kfra8p0\localcache\local-packages\python38\site-packages (from google-auth<2,>=1.6.3->tensorboard<3,>=2.3.0->tensorflow) (0.2.8)
Requirement already satisfied: rsa<5,>=3.1.4; python_version >= "3.5" in c:\users\teren\appdata\local\packages\pythonsoftwarefoundation.python.3.8_qbz5n2kfra8p0\localcache\local-packages\python38\site-packages (from google-auth<2,>=1.6.3->tensorboard<3,>=2.3.0->tensorflow) (4.6)
Requirement already satisfied: cachetools<5.0,>=2.0.0 in c:\users\teren\appdata\local\packages\pythonsoftwarefoundation.python.3.8_qbz5n2kfra8p0\localcache\local-packages\python38\site-packages (from google-auth<2,>=1.6.3->tensorboard<3,>=2.3.0->tensorflow) (4.1.1)
Requirement already satisfied: chardet<4,>=3.0.2 in c:\users\teren\appdata\local\packages\pythonsoftwarefoundation.python.3.8_qbz5n2kfra8p0\localcache\local-packages\python38\site-packages (from requests<3,>=2.21.0->tensorboard<3,>=2.3.0->tensorflow) (3.0.4)
Requirement already satisfied: idna<3,>=2.5 in c:\users\teren\appdata\local\packages\pythonsoftwarefoundation.python.3.8_qbz5n2kfra8p0\localcache\local-packages\python38\site-packages (from requests<3,>=2.21.0->tensorboard<3,>=2.3.0->tensorflow) (2.10)
Requirement already satisfied: urllib3!=1.25.0,!=1.25.1,<1.26,>=1.21.1 in c:\users\teren\appdata\local\packages\pythonsoftwarefoundation.python.3.8_qbz5n2kfra8p0\localcache\local-packages\python38\site-packages (from requests<3,>=2.21.0->tensorboard<3,>=2.3.0->tensorflow) (1.25.11)
Requirement already satisfied: certifi>=2017.4.17 in c:\users\teren\appdata\local\packages\pythonsoftwarefoundation.python.3.8_qbz5n2kfra8p0\localcache\local-packages\python38\site-packages (from requests<3,>=2.21.0->tensorboard<3,>=2.3.0->tensorflow) (2020.11.8)
Requirement already satisfied: oauthlib>=3.0.0 in c:\users\teren\appdata\local\packages\pythonsoftwarefoundation.python.3.8_qbz5n2kfra8p0\localcache\local-packages\python38\site-packages (from requests-oauthlib>=0.7.0->google-auth-oauthlib<0.5,>=0.4.1->tensorboard<3,>=2.3.0->tensorflow) (3.1.0)
Requirement already satisfied: pyasn1<0.5.0,>=0.4.6 in c:\users\teren\appdata\local\packages\pythonsoftwarefoundation.python.3.8_qbz5n2kfra8p0\localcache\local-packages\python38\site-packages (from pyasn1-modules>=0.2.1->google-auth<2,>=1.6.3->tensorboard<3,>=2.3.0->tensorflow) (0.4.8)
Installing collected packages: tensorflow
ERROR: Could not install packages due to an EnvironmentError: [Errno 2] No such file or directory: 'C:\\Users\\teren\\AppData\\Local\\Packages\\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\\LocalCache\\local-packages\\Python38\\site-packages\\tensorflow\\include\\external\\com_github_grpc_grpc\\src\\core\\ext\\filters\\client_channel\\lb_policy\\grpclb\\client_load_reporting_filter.h'
pip版本是20.2.4，而python版本是3.8。 我正在使用Windows 10，所以不确定这是否是Windows。
我看到pip使用的是缓存包，所以我尝试了
pip --no-cache-dir install tensorflow
但我仍然得到
ERROR: Could not install packages due to an EnvironmentError: [Errno 2] No such file or directory: 'C:\\Users\\teren\\AppData\\Local\\Packages\\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\\LocalCache\\local-packages\\Python38\\site-packages\\tensorflow\\include\\external\\com_github_grpc_grpc\\src\\core\\ext\\filters\\client_channel\\lb_policy\\grpclb\\client_load_reporting_filter.h'
答案 0 :(得分：1)
windows pip install 过程中文件丢失的问题发生在路径过长时。
您可以使用 regedit 解决此问题，转到 HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\FileSystem 并将 LongPathsEnabled 的值更改为 1。
答案 1 :(得分：0)
您需要创建tensorflow社区推荐的环境
请点击以下链接
https://www.tensorflow.org/install/pip
请确保您逐步遵循此文档
如果您觉得它需要大量手动操作，请使用Anaconda导航器 单击“环境”选项卡，创建名为tensorflow的环境，然后右键下载需要安装的所有软件包
完成后，单击您的新环境并启动jupyter笔记本