Frame Hack Recipe: Ruby-Style String Interpolation
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Step 0
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.. sourcecode:: python

    from string import Template

    def interpolate(templateStr, d):
        t = Template(templateStr)
        return t.substitute(**d)
        
    name = 'Feihong'
    place = 'Chicago'
    print interpolate("My name is ${name}. I work in ${place}.", locals())

Expected output::

    My name is Feihong. I work in Chicago.
    
Solution: `interpolate0.py <solutions/interpolate0.py>`_

`Go to next step <step1.html>`_