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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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