Python 诞生于 1989 年的圣诞期间，由 Guido van Rossum 开发而成，目前 Guido 仍然是 Python 的主要开发者，主导着 Python 的发展方向 ...

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If the mention of algebra conjures bad memories of math classes, a Python library called SymPy could change your mind about the subject. With SymPy, algebraic operations become easier than tedious ...