# How to use accumulate method in tox

Best Python code snippet using tox_python

hw02.py

Source:hw02.py

`...56 k = 157 for i in range(1, n+1):58 k *= term(i)59 return k60def accumulate(merger, start, n, term):61 """Return the result of merging the first n terms in a sequence and start.62 The terms to be merged are term(1), term(2), ..., term(n). merger is a63 two-argument commutative function.64 >>> accumulate(add, 0, 5, identity) # 0 + 1 + 2 + 3 + 4 + 565 1566 >>> accumulate(add, 11, 5, identity) # 11 + 1 + 2 + 3 + 4 + 567 2668 >>> accumulate(add, 11, 0, identity) # 1169 1170 >>> accumulate(add, 11, 3, square) # 11 + 1^2 + 2^2 + 3^271 2572 >>> accumulate(mul, 2, 3, square) # 2 * 1^2 * 2^2 * 3^273 7274 >>> # 2 + (1^2 + 1) + (2^2 + 1) + (3^2 + 1)75 >>> accumulate(lambda x, y: x + y + 1, 2, 3, square)76 1977 >>> # ((2 * 1^2 * 2) * 2^2 * 2) * 3^2 * 278 >>> accumulate(lambda x, y: 2 * x * y, 2, 3, square)79 57680 >>> accumulate(lambda x, y: (x + y) % 17, 19, 20, square)81 1682 """83 "*** YOUR CODE HERE ***"84 for i in range(1, n+1):85 start = merger(start, term(i))86 return start87def summation_using_accumulate(n, term):88 """Returns the sum: term(1) + ... + term(n), using accumulate.89 >>> summation_using_accumulate(5, square)90 5591 >>> summation_using_accumulate(5, triple)92 4593 >>> # You aren't expected to understand the code of this test.94 >>> # Check that the bodies of the functions are just return statements.95 >>> # If this errors, make sure you have removed the "***YOUR CODE HERE***".96 >>> import inspect, ast97 >>> [type(x).__name__ for x in ast.parse(inspect.getsource(summation_using_accumulate)).body[0].body]98 ['Expr', 'Return']99 """100 # "*** YOUR CODE HERE ***"101 return accumulate(add, 0, n, term)102def product_using_accumulate(n, term):103 """Returns the product: term(1) * ... * term(n), using accumulate.104 >>> product_using_accumulate(4, square)105 576106 >>> product_using_accumulate(6, triple)107 524880108 >>> # You aren't expected to understand the code of this test.109 >>> # Check that the bodies of the functions are just return statements.110 >>> # If this errors, make sure you have removed the "***YOUR CODE HERE***".111 >>> import inspect, ast112 >>> [type(x).__name__ for x in ast.parse(inspect.getsource(product_using_accumulate)).body[0].body]113 ['Expr', 'Return']114 """115 # "*** YOUR CODE HERE ***"...`

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