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# coding:utf-8

'''

filename: roundfloat.py

'''

class RoundFloat:

def __init__(self, val):

assert isinstance(val, float), "value must be a float."

self.value = round(val, 2)

def __str__(self): #①

return "{:.2f}".format(self.value)

__repr__ = __str__ #②

if __name__ == "__main__":

r = RoundFloat(2.185)

print(r)

print(type(r))