binary_heap.py
def _lchild(self, index):
        """
        Returns the index of the left child.
        No bounds checking.
        """
        return 2*index+1

        Returns the index of the left child.
        No bounds checking.
        
Returns the index of the left child.
No bounds checking.
Returns the index of the left child . No bounds checking .
def _lchild(self, index):
        return 2*index+1
def _lchild ( self , index ) : return 2 * index + 1
Returns the index of the left child.
Returns the index of the left child .
"""
        Returns the index of the left child.
        No bounds checking.
        """
self
index