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python-install

python3

mac

通过以下命令安装

brew install python3
brew install python3

异常:

Error: An unexpected error occurred during the `brew link` step
The formula built, but is not symlinked into /usr/local
Permission denied @ dir_s_mkdir - /usr/local/Frameworks
Error: Permission denied @ dir_s_mkdir - /usr/local/Frameworks
Error: An unexpected error occurred during the `brew link` step
The formula built, but is not symlinked into /usr/local
Permission denied @ dir_s_mkdir - /usr/local/Frameworks
Error: Permission denied @ dir_s_mkdir - /usr/local/Frameworks

解决办法:

sudo mkdir /usr/local/Frameworks

sudo chown $(whoami):admin /usr/local/Frameworks

brew link python3
sudo mkdir /usr/local/Frameworks

sudo chown $(whoami):admin /usr/local/Frameworks

brew link python3

vs code

"python.pythonPath": "/usr/local/bin/python3"
"python.pythonPath": "/usr/local/bin/python3"

安装 python3 自带安装 pip3

pip3 -V
pip3 -V

更换 pip 源

cd ~/
mkdir .pip
cd .pip
touch pip.conf
vim pip.conf
cd ~/
mkdir .pip
cd .pip
touch pip.conf
vim pip.conf
[global]

index-url = http://mirrors.aliyun.com/pypi/simple/

[install]

trusted-host=mirrors.aliyun.com
[global]

index-url = http://mirrors.aliyun.com/pypi/simple/

[install]

trusted-host=mirrors.aliyun.com

windows

error: command 'cl.exe' failed: No such file or directory

Microsoft Visual C++ 14.0 is required. Get it with "Microsoft Visual C++ Build Tools"

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