> It could be prone to breakage. > str(expression) might be changed by people who're not aware that lambdify > depends on things like parseability and adherence to naming conventions in > str(). > > A lambdify of whatever variant that traced the object tree directly would be > much preferrable over parsing a str(expression) output. I agree completely. However, if we stick to using the eval() trick, there will always be some moment when a string is used.
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