https://bugs.kde.org/show_bug.cgi?id=358975
Bug ID: 358975
Summary: Make the worksheet path available to backends
(enhancement proposal with patch)
Product: cantor
Version: unspecified
Platform: unspecified
OS: All
Status: UNCONFIRMED
Severity: wishlist
Priority: NOR
Component: general
Assignee: fil...@kde.org
Reporter: mat...@dnet.it
CC: alexanderrie...@gmail.com
It is sometimes needed to access the worksheet path from the backend code.
Specifically, I am trying to access the path information from Sage code: for
example to include a separate script, or to write results to file.
If the current path is not known, then absolute paths must be hardcoded in the
worksheet, which might not be desirable as it is not a flexible solution.
Reproducible: Always
Steps to Reproduce:
1. Start Cantor and choose the Sage backend.
2. Type "import os; print __file__".
3. Save the worksheet.
4. Evaluate the current entry.
Actual Results:
An error is returned:
NameError: name '__file__' is not defined
Expected Results:
It would be useful to obtain the path to the current worksheet.
While this behaviour is completely normal, because the backend runs sage as an
interactive server session which has no notion of "saved path", this limitation
leads to hardcoding absolute paths into the current worksheet.
A workaround would be to set the variable "__file__" when the worksheet is
saved or loaded, so that it can be accessed with sage commands.
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