Sum up values in a column using Pandas
<p>I have a dataframe where one column has a list of zipcodes and the other has property values corresponding to the zipcode. I want to sum up the property values in each row according to the appropriate zipcode. </p>

<p>So, for example:</p>

<pre><code>zip  value
2210 $5,000
2130 $3,000
2210 $2,100
2345 $1,000
</code></pre>

<p>I would then add up the values </p>

<pre><code>$5,000 + $2,100  = $7,100 
</code></pre>

<p>and reap the total property value of for zipcode 2210 as $7,100. </p>

<p>Any help in this regard will be appreciated</p>