rustpython 0.1.0

A python interpreter written in rust.
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from testutils import assertRaises

x = "An interesting piece of text"
assert x is str(x)

class Stringy(str):
    def __new__(cls, value=""):
        return str.__new__(cls, value)

    def __init__(self, value):
        self.x = "substr"

y = Stringy(1)
assert type(y) is Stringy, "Type of Stringy should be stringy"
assert type(str(y)) is str, "Str of a str-subtype should be a str."

assert y + " other" == "1 other"
assert y.x == "substr"

## Base strings currently get an attribute dict, but shouldn't.
# with assertRaises(AttributeError):
#     "hello".x = 5