The code below takes the data already cleaned up by the code in the previous post and strings separate expirations together in a time series suitable for back testing, using the code found here and here. Options are rolled monthly.
You can view the code in the window below or directly on Gist.
I am sure there are better and more efficient ways of completing the task but this is how I chose to do it. Using Python and various of its libraries including the truly fabulous Pandas.
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