1. Download the installation package
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1
2
3
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https:
/
/
www.python.org
/
ftp
/
python
/
2.7
.
14
/
python
-
2.7
.
14.amd64
.msi
# 2.7安装包
https:
/
/
www.python.org
/
ftp
/
python
/
3.6
.
4
/
python
-
3.6
.
4
-
amd64.exe
# 3.6安装包
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2. Install python3.6
|
1
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增加环境变量
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3. In the command-line test
4. Installation python2.7
5. python2 added environment variable
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1
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C:\Python27\Scripts\;C:\Python27\;
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6. C: \ python.exe and pythonw.exe under Python27 directory to python2.exe and pythonw2.exe
7. C: \ python.exe and pythonw.exe under Python36 directory to python3.exe and pythonw3.exe
8. At this time, the command line input python2 python3 python3 Representative Representative python2
Two. Pip installation
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1
2
3
4
5
6
7
8
9
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#在cmd上执行
python3
-
m pip install
-
-
upgrade pip
-
-
force
-
reinstall
python2
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m pip install
-
-
upgrade pip
-
-
force
-
reinstall
#查看pip版本
pip3
-
V
pip2
-
V
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