Pygritia: Lazy Symbolic Evaluation
Pygritia is a symbolic expression library.
- create symbolic expressions with one or more symbols
- resolve symbolic expressions by substituting values to symbols
- partially resolve symbolic expression
from pygritia import symbol, evaluate, update this = symbol('this') that = symbol('that') arr = [1, 2, 3] print(5 / this + 2 * 6) # 5 / this + 12 print(evaluate(5 / this + 2 * 6, this=2)) # 14.5 print(evaluate(this[that], this=arr)) # [1, 2, 3][that] update(this[that], 42, this=arr, that=1) print(arr) # [1, 42, 3]
Documentation of all public functions can be found in
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