List of articles

List of articles

• List of articles
• Preface
• One 、 View installed Libraries
• • 1. Command query
  • 2. From the installation path site-packages see
• Two 、 Export library installation files
• • 1. export
  • 2. install
• summary

Preface

One 、 View installed Libraries

1. Command query

pip list

2. From the installation path site-packages see

Two 、 Export library installation files

1. export

Execute the command in the Library folder we want to export ：

pip ferrze >requirements.txt

If it appears ：

WARNING: Ignoring invalid distribution -ip (e:\py\python3.7\python37\lib\site-packages)

translate ： Warning : Ignore invalid distribution

Cause analysis ： install package Half way interruption .
Solution ： In the corresponding directory （ My directory is ：E:\py\python3.7\Python37\Lib\site-packages） find ip Folder , As shown in the figure , Delete the following two folders .

2. install

Update before installing pip, In case some applications cannot be installed ;

python3 -m pip install --upgrade pip

Install libraries on the new environment ：

# Normal download and installation
pip install -r requirements.txt
# Download and install Tsinghua source
pip install -r requirements.txt -i https://pypi.tuna.tsinghua.edu.cn/simple 
# Download and install watercress
pip install -r requirements.txt -i https://pypi.douban.com/simple 

summary

Share ：
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