class_docstr: This class implements rational numbers.
  
  In the two-argument form of the constructor, Fraction(8, 6) will
  produce a rational number equivalent to 4/3. Both arguments must
  be Rational. The numerator defaults to 0 and the denominator
  defaults to 1 so that Fraction(3) == 3 and Fraction() == 0.
  
  Fractions can also be constructed from:
  
    - numeric strings similar to those accepted by the
      float constructor (for example, '-2.3' or '1e10')
  
    - strings of the form '123/456'
  
    - float and Decimal instances
  
    - other Rational instances (including integers)
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code: def __copy__(self):
      if type(self) == Fraction:
          return self  # I'm immutable; therefore I am my own clone
      return self.__class__(self._numerator, self._denominator)
  
imports: from decimal import Decimal
  import math
  import numbers
  import operator
  import re
  import sys
label_desc: Use image node_id 37 for calling the Fraction obj's underlying member method code with example usage: obj.__copy__() and returns: self, self