Is there a way to prefix all sage code in order to include a custom module?

asked 2011-10-22 15:28:15 +0100

process91
111 ●2 ●4 ●14

I have a library of commonly used functions and variables which I import, when required, into sage by using the following commands:

import os, sys
cmd_folder = '/home/username/sage'
if cmd_folder not in sys.path:
     sys.path.insert(0, cmd_folder)
import defaults as d

This allows me to access all my frequently used saved functions and variables. I essentially only use Sage through the web interface, and I would like to know if it is possible to make this code run as a "prefix" so that I no longer have to type this include in every worksheet.

answered 2011-10-22 15:41:24 +0100

parzan
977 ●6 ●15 ●36

If you create "~/.sage/init.sage" (where ~ is your homedir) it is executed automatically in the beginning of every session.

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Which of course will only work if you are using it in the web interface off your own computer! But it looks like that's the case here?

kcrisman ( 2011-10-22 22:45:27 +0100 )edit

I think this works from the command line interface too, doesn't it?

Mike Witt ( 2011-10-23 01:59:51 +0100 )edit

For me it works both in command line and notebook, but I am running the program on my computer as commented above.

parzan ( 2011-10-23 03:03:45 +0100 )edit

@Mike Witt: Yes, init.sage should work in both, but it wasn't clear whether process91 is using it on a remote server or on his/her own computer. "Only" modified "your own computer", not the whole following phrase :)

kcrisman ( 2011-10-24 11:51:14 +0100 )edit

This will work for me. I am using it as a server, but on my own hardware.

process91 ( 2011-10-24 19:27:15 +0100 )edit

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