Python

Learning Python scratch pad

Vim as Python IDE

Ubuntu comes with vim-tiny package that has most of things disabled, so get it uninstalled

sudo apt-get purge vim-tiny
sudo apt-get install vim         #py3 support
sudo apt-get install vim-nox-py2 #py2 support
vim --version | grep python  #verify you should see eg: +python -python3

Optimally you may need to set alternatives

 sudo update-alternatives --set vim /usr/bin/vim.nox-py2

Now, open vim and check :python import sys; print(sys.version) you should see similar output

2.7.12 (default, Nov 19 2016, 06:48:10)
[GCC 5.4.0 20160609]

Simple HTTP Server

It provides the local files browser over http protocol and access logs

sudo python -m SimpleHTTPServer 80

print()

Print in v3 is a function, it uses arguments with variables like below:

%s - String (or any object with a string representation, like numbers)
%d - Integers
%f - Floating point numbers
%.<number of digits>f - Floating point numbers with a fixed amount of digits to the right of the dot.
%x/%X - Integers in hex representation (lowercase/uppercase)

Eaxmple:

print("%s is %d years old." % (name, age))

Install Selenium lib on Ubuntu

$ which python python3
/usr/bin/python
/usr/bin/python3
sudo apt-get install python3-pip # install pip for python3
sudo python3 -m pip install -U selenium # install selenium for python3
sudo python3 -m pip install -U pip #upgrade pip

References

• A Beginner's Python Tutorial Wikibooks
• List of free Python learning resources
• VIM and Python - a Match Made in Heaven Vim as Python IDE
• Vundle Vim bundle/plugins manager