#18107: The codes collection should describe how to import it as a real module
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Reporter: jsrn | Owner:
Type: enhancement | Status: positive_review
Priority: major | Milestone: sage-6.6
Component: coding theory | Resolution:
Keywords: sd66 | Merged in:
Authors: Johan S. R. | Reviewers: Nathann Cohen, Volker
Nielsen | Braun
Report Upstream: N/A | Work issues:
Branch: | Commit:
u/jsrn/18107_coding_module | 28a26eac05663eabf6d79d93eb512082fde27ba8
Dependencies: | Stopgaps:
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Changes (by vbraun):
* status: needs_review => positive_review
* reviewer: Nathann Cohen => Nathann Cohen, Volker Braun
Comment:
Global variables in the repl are a tradeoff. Sure, globals are usually bad
(which is why you have to explicitly import things in the Sage library
code). But then its the commandline, so we want to have a useful set of
defaults. The important fact is: you can always overwrite stuff in the
global namespace with stuff from your preferred module and everything
works:
{{{
$ python
>>> list = 123 # why not
>>> list([1,2]) # of course that doesn't work then any more
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: 'int' object is not callable
>>> from __builtin__ import list # get the old list back
>>> list([1,2])
[1, 2]
}}}
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Ticket URL: <http://trac.sagemath.org/ticket/18107#comment:27>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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