Adding a column in pandas df using a function
<p>I have a Pandas df [see below].
How do I add values from a function to a new column "price"?</p>

<pre><code>function:

    def getquotetoday(symbol):
        yahoo = Share(symbol)
        return yahoo.get_prev_close()

df:

Symbol    Bid      Ask
MSFT     10.25   11.15
AAPL     100.01  102.54


  (...)
</code></pre>