store python code from a notebook cell to a file

asked 2016-04-25 00:09:59 +0100

bekalph
90 ●2 ●10 ●15

During a notebook session I enter a series of SAGE-statements (python code) in a notebook cell. How can I let SAGE store/save this code automatically (not via copy&paste) in a file? The purpose is to reload the stored code in a cell of another session for later processing . I tried to perform this via the "save-session" -command. However, this results in a data volume of several MB, which is much larger than the total length of the code of the session. This I want to avoid.

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Yes, saving a session saves everything associated with it, which is a lot of Sage itself. I don't know that there is a way to do this other than simply cut and paste - though I'll point out you can go to "Edit" or something and cut and paste all at once.

kcrisman ( 2016-04-25 18:39:59 +0100 )edit

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answered 2016-04-26 16:28:08 +0100

tmonteil
27413 ●31 ●204 ●517 http://wiki.sagemath.o...

updated 2016-04-26 16:44:26 +0100

There is no simple solution with the Sage notebook. You can save your worksheet as an .sws file and then from the command line do sage -sws2rst your_worksheet.sws to get an rst file, so that it is easier to post-process the text file to obtain a genuine Python file (this can then easily be done since you just have to select lines that start either with <space><space><space><space>sage:<space> or with <space><space><space><space>...<space><space>).

It is easier with the jupyter notebook:

If you want a short notebook, you can clean all output by clicking on "Kernel" then "Restart & clear output". Then you can save your worksheet that only contains input cells (the cells with your code).
You can also get those input cells in a Python file by clicking on "Flie", then "Download as", then "Python (.py)".

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