how to merge two data frames based on particular column in pandas python?
<p>I have to merge two dataframes:</p>

<p>df1</p>

<pre><code>company,standard
tata,A1
cts,A2
dell,A3
</code></pre>

<p>df2</p>

<pre><code>company,return
tata,71
dell,78
cts,27
hcl,23
</code></pre>

<p>I have to unify both dataframes to one dataframe. I need output like:</p>

<pre><code>company,standard,return
tata,A1,71
cts,A2,27
dell,A3,78
</code></pre>