Status: Accepted
Owner: asmeurer
Labels: Type-Enhancement Priority-Medium
New issue 2513 by asmeurer: Create a SymPyDeprecationWarning for deprecated
SymPy behavior
http://code.google.com/p/sympy/issues/detail?id=2513
DeprecationWarning is turned off by default in Python 2.7, so all of our
deprecated behavior that we deprecate with DeprecationWarning is not shown
to the majority of our users (unless they are specifically looking for it,
they won't find it). This was done because most users of Python programs
can't do anything if the program uses deprecated behavior, so they don't
care to see the warning. But I think most developers don't really do a
good job of turning the warnings on, unfortunately.
I think we should create a SymPyDeprecationWarning that subclasses from
DeprecationWarning, but is turned on by default in isympy. See issue
2142. That way, users of scripts that use sympy won't be bothered by them,
but people who use isympy, who should be bothered by them in my opinion,
will be. This will likely also include the developers of most of those
scripts.
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