电脑重装后 python 2 3快速安装

背景：

电脑重装后，python也要跟着重装，将安装包、环境变量备份等安装完成后直接安装

重装前

1. pip包备份,命令窗口

 pip freeze > py2.txt #python2的包
 pip3 freeze > py3.txt #python3的包

2.环境变量备份,命令窗口

 set >> D:\env.txt

重装后

1.安装python2、3

安装包可以从官网下载，也可以使用网盘中的文件

链接：https://pan.baidu.com/s/1sqejXeezFzU_2XJJtzD_Hw 
提取码：f0q3

2.将python3目录下的 python.exe 复制一份，修改成 python3.exe

3.将重装前2中的环境变量中的 python路径加到 环境变量中

 C:\Python27;
 C:\Python27\Scripts;
 C:\Python27\Lib\site-packages;
 C:\Python37;
 C:\Python37\Scripts;

4.安装VCForPython27 包，不安装的话 第五步会报错 error: Microsoft Visual C++ 9.0 is required

地址：http://www.microsoft.com/en-us/download/confirmation.aspx?id=44266

直接下载安装 或从重装后步骤1中的网盘中下载

5.安装包

 pip install -r py2.txt #安装python2的包
 pip install -r py3.txt #安装python3的包

附录：

自己常用安装包

Python2

 alembic==0.8.7
 aniso8601==6.0.0
 Appium-Python-Client==0.28
 AppMetrics==0.5.0
 APScheduler==3.6.1
 arrow==0.13.1
 asn1crypto==0.24.0
 backports-abc==0.5
 backports.functools-lru-cache==1.5
 bcrypt==3.1.4
 beautifulsoup4==4.6.0
 binaryornot==0.4.4
 blinker==1.4
 certifi==2018.4.16
 cffi==1.11.5
 chardet==3.0.4
 click==6.6
 configparser==3.7.4
 cookiecutter==1.6.0
 cookiejar==0.0.2
 coverage==4.5.1
 cryptography==2.2.2
 cycler==0.10.0
 decorator==4.3.0
 Django==1.11.20
 docutils==0.14
 dominate==2.3.5
 enum34==1.1.6
 et-xmlfile==1.0.1
 Flask==0.11.1
 Flask-Bootstrap==3.3.7.1
 Flask-HTTPAuth==3.1.2
 Flask-JWT==0.3.2
 Flask-Login==0.4.1
 Flask-Mail==0.9.1
 Flask-Migrate==2.0.0
 Flask-Moment==0.7.0
 Flask-RESTful==0.3.7
 Flask-Script==2.0.5
 Flask-SQLAlchemy==2.1
 funcsigs==1.0.2
 future==0.17.1
 futures==3.2.0
 hiredis==0.2.0
 http==0.2
 idna==2.6
 ipaddress==1.0.22
 itsdangerous==0.24
 jdcal==1.4
 jieba==0.39
 Jinja2==2.8
 jinja2-time==0.2.0
 jsonpatch==1.23
 jsonpointer==2.0
 jwt==0.5.4
 kitchen==1.2.5
 kiwisolver==1.1.0
 livetest==0.5
 Mako==1.0.4
 MarkupSafe==0.23
 matplotlib==2.2.4
 mock==2.0.0
 mysql-connector==2.2.9
 MySQL-python==1.2.5
 numpy==1.16.4
 openpyxl==2.6.2
 pager==3.3
 paramiko==2.4.1
 parse==1.8.4
 passlib==1.7.1
 payment==0.0.1.2
 pbr==5.1.3
 Pillow==6.0.0
 pluggy==0.6.0
 poyo==0.4.2
 py==1.5.3
 pyasn1==0.4.3
 pycparser==2.18
 pycrypto==2.6
 PyJWT==1.4.2
 pymongo==3.6.1
 PyMySQL==0.7.6
 PyNaCl==1.2.1
 pyparsing==2.4.0
 python-dateutil==2.8.0
 python-editor==1.0.1
 pytz==2018.9
 redis==2.10.5
 redis-py-cluster==1.3.4
 requests==2.19.0
 robotframework==3.0.4
 robotframework-appiumlibrary==1.4.6
 robotframework-archivelibrary==0.4.0
 robotframework-databaselibrary==1.0.1
 robotframework-ftplibrary==1.6
 robotframework-httplibrary==0.4.2
 robotframework-mongodblibrary==0.3.4
 robotframework-redislibrary==0.1
 robotframework-requests==0.4.7
 robotframework-ride==1.5.2.1
 robotframework-selenium2library==3.0.0
 robotframework-seleniumlibrary==3.1.1
 robotframework-sshlibrary==3.0.0
 schedule==0.6.0
 selenium==3.12.0
 singledispatch==3.4.0.3
 six==1.11.0
 SQLAlchemy==1.0.14
 tornado==5.1.1
 tox==3.0.0
 typing==3.5.3.0
 tzlocal==2.0.0
 urllib3==1.23
 virtualenv==16.0.0
 visitor==0.1.3
 waitress==1.1.0
 webob==1.8.2
 webtest==2.0.29
 Werkzeug==0.11.10
 whichcraft==0.5.2
 wordcloud==1.5.0
 WTForms==2.2.1

Python3

 APScheduler==3.6.0
 arrow==0.15.4
 asn1crypto==0.24.0
 Babel==2.7.0
 backports.ssl-match-hostname==3.7.0.1
 bcrypt==3.1.6
 blinker==1.4
 certifi==2019.3.9
 cffi==1.12.3
 chardet==3.0.4
 Click==7.0
 crcmod==1.7
 cryptography==2.6.1
 docker==3.7.2
 docker-pycreds==0.4.0
 Flask==1.0.2
 Flask-Babel==0.12.2
 Flask-Excel==0.0.7
 Flask-Login==0.4.1
 Flask-Mail==0.9.1
 Flask-OAuthlib==0.9.5
 Flask-Script==2.0.6
 Flask-Session==0.3.1
 Flask-SQLAlchemy==2.4.0
 Flask-WTF==0.14.2
 geoip2==2.9.0
 gevent==1.4.0
 greenlet==0.4.15
 has==0.0.4
 idna==2.8
 ipaddress==1.0.22
 itsdangerous==1.1.0
 Jinja2==2.10.1
 jmespath==0.9.4
 lml==0.0.9
 lxml==4.3.4
 Markdown==2.6.11
 MarkupSafe==1.1.1
 maxminddb==1.4.1
 oauthlib==2.1.0
 olefile==0.46
 packaging==19.0
 paramiko==2.4.2
 pip-review==1.0
 pyasn1==0.4.5
 pycparser==2.19
 pyexcel==0.5.13
 pyexcel-io==0.5.17
 pyexcel-webio==0.1.4
 PyMySQL==0.9.3
 PyNaCl==1.3.0
 pyparsing==2.4.0
 pypiwin32==223
 python-dateutil==2.8.1
 pytz==2019.1
 pywin32==224
 requests==2.21.0
 requests-oauthlib==1.1.0
 robotframework==3.1.2
 six==1.12.0
 SQLAlchemy==1.3.6
 texttable==1.6.1
 tzlocal==1.5.1
 urllib3==1.24.3
 websocket-client==0.56.0
 Werkzeug==0.15.2
 WTForms==2.2.1
 XMind==1.2.0
 xmind2testcase==1.3.0