套路【2】实验环境搭建

Environment setting is important in run a project.

python install

• see available python and do something with them
  Run python and see the version of it. You can also check the folder /usr/local/bin or /usr/bin since python is always installed there.

import sys
print(sys.executable)

• get pakage from website
• choose a proper version (ps: the hardest part)
  We take python3.7.0 as example
• compile and build (ps: python depends on gcc)

./configure
make
make install

• build soft link (ps: for mvc)

ln -s /usr/bin/python /usr/local/bin/python3.7 # when type `python`, you actually run `python3.7` useful for mvc

• try and test: make sure you really install the python properly
• how to choose python version
  It depends on the pakcage that your project need --> get info from repo or try (ps: I am confused with this part😭)

network

• do this part first
• basic idea: network need dns & domestic image
• set dns set dns
  You can only have 3 dns ip

vim /etc/resolv.conf # tmp
vim /etc/resolvconf/resolv.conf.d/base # perm   
# nameserver 10.3.3.3
# nameserver 114.114.114.114
# nameserver 8.8.8.8 

• domestic image

vim /etc/apt/sources.list
# add the proper content from [网络设置清华源](https://mirror.tuna.tsinghua.edu.cn/help/ubuntu/)

• reboot the server

pip install

• sudo apt-get install pip
• python get-pip.py (ps: recommend)
  Install get-pip.py from website and run python get-pip.py.
• install pip from pypi
  website contains python’s all pakcages, which inlude pip. You can install pip like other pakages.

pakage install

• pip install [pakage name] （ps: need pip)
• pip install [pakage name] -i [domestic image]

you can choose domestic image from below
https://pypi.tuna.tsinghua.edu.cn/simple/	# 清华大学
https://mirrors.aliyun.com/pypi/simple/		# 阿里云
https://pypi.douban.com/simple/				# 豆瓣
https://pypi.mirrors.ustc.edu.cn/simple/	# 中国科学技术大学
https://pypi.hustunique.com/	
# ————————————————
# 版权声明：本文为优快云博主「Doris404」的原创文章，遵循CC 4.0 BY-SA版权协议，转载请附上原文出处链接及本声明。
# 原文链接：https://blog.youkuaiyun.com/kullollo/article/details/109448254

• install pakage.tar.gz from pypi and run cd [pakage] & python setup.py install
• install pakage from pakage.whl in pypi and run pip install [pakage.whl]

Philosophy

goal first

• don’t update software frequently (ps: update pip)
• see only the important info (ps: warning is ok, useless err is ok)
  
  ps: actually numpy is installed properly, but the info is really scary.

easy first

• passwd free login how to set passwd free login

log and checkpoint

• this README.md
• env set will last long time