Expanding pandas data frame with date range in columns : <p>I have a pandas dataframe with dates and strings similar to this:</p>

<pre><code>Start        End           Note    Item
2016-10-22   2016-11-05    Z       A
2017-02-11   2017-02-25    W       B
</code></pre>

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<p>I need to expand/transform it to the below, filling in weeks (W-SAT) in between the <strong>Start</strong> and <strong>End</strong> columns and forward filling the data in <strong>Note</strong> and <strong>Items</strong>:</p>

<pre><code>Start        Note    Item
2016-10-22   Z       A
2016-10-29   Z       A
2016-11-05   Z       A
2017-02-11   W       B
2017-02-18   W       B
2017-02-25   W       B
</code></pre>

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<p>Whats the best way to do this with pandas? Some sort of multi-index apply?</p>
