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Top Forums Shell Programming and Scripting Find common values in python list in ordered format Post 303001181 by Zam_1234 on Friday 28th of July 2017 12:46:07 PM
Old 07-28-2017
Find common values in python list in ordered format

Hello All,
There are various codes available to find the intersection between two sets in python. But my case is the following:

I want to find the continual common pattern in different lists compared to list1.
(i have underlined the longest common patterns in set a and set b)
Code:
a = [1, 2, 3, 5, 8, 9, 4, 9]
b= [1, 3, 2, 3, 9, 4, 9, 5, 9]
common_ordered = [i for in a if i in b]
print common_ordered

The output I get is:
Code:
[1, 2, 3, 5, 9, 4, 9]

but my expected output is:
Code:
[(2 , 3) , (9, 4, 9)]

Any suggestions would help
 

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NAME
isympy - interactive shell for SymPy SYNOPSIS
isympy [-c | --console] isympy [ {-h | --help} | {-v | --version} ] DESCRIPTION
isympy is a Python shell for SymPy. It is just a normal python shell (ipython shell if you have the ipython package installed) that exe- cutes the following commands so that you don't have to: >>> from __future__ import division >>> from sympy import * >>> x, y, z = symbols("xyz") >>> k, m, n = symbols("kmn", integer=True) So starting isympy is equivalent to starting python (or ipython) and executing the above commands by hand. It is intended for easy and quick experimentation with SymPy. For more complicated programs, it is recommended to write a script and import things explicitly (using the "from sympy import sin, log, Symbol, ..." idiom). OPTIONS
-c shell, --console=shell Use the specified shell (python or ipython) as console backend instead of the default one (ipython if present or python otherwise). Example: isympy -c python FILES
${HOME}/.sympy-history Saves the history of commands when using the python shell as backend. BUGS
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ipython(1), python(1) 2007-10-8 isympy(1)
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