Using doctest-mode inside python-mode (1/7)

Note: To use doctest-mode within python-mode, you must have mmm-mode installed, and enable doctest-mode's support for mmm-mode. See MMM-Mode Support for instructions. This walk-through assumes that mmm-mode support has already been enabled.

Open or create a Python file whose docstrings have doctest examples. The example file to the right defines a single function, x-intercept().

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def x_intercept(m, b):
    """
    Return the x intercept of the line y=m*x+b.
        >>> x_intercept(3, 6)
        -2.0
        >>> x_intercept(-4, 2)
        0.5
    """
    return -float(b)/m

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