symengine
Passing locals dict to sympify
When constructing an expression from a string in SymPy, it is often useful to pass around a locals dict defining necessary symbols. This functionality is present in sympy.sympify via the argument locals, and in sympy.parsing.sympy_parser.parse_expr via the argument local_dict.
Rather than declaring them in the local environment and constructing an expression with eval, we can pass around a dict of symbols resulting in cleaner code (e.g. no linter complaints about variables only used inside eval, re-use is more straightforward, etc).
It would be nice to have this in symengine.py as well!
Yes, we'd like to have this. Let me know if you'd like to work on this and I can give pointers and help you with it.
