title: Getting country name from longitude and latitude
body: <p>I would like to extract the country name from the latitude and longitude of the location in my dataframe.</p>
  <p>Here is a sample of my data:</p>
  <pre><code>{'Country/Region': {0: nan, 1: nan, 2: nan, 3: nan, 4: nan},
           'Lat': {0: '33.93911',
            1: '41.1533',
            2: '28.0339',
            3: '42.5063',
            4: '-11.2027'},
           'Long': {0: '67.709953',
            1: '20.1683',
            2: '1.6596',
            3: '1.5218',
            4: '17.8739'},
           'Province/State': {0: nan, 1: nan, 2: nan, 3: nan, 4: nan}}
  </code></pre>
  <p>Note: this is a pandas dataframe that I only converted to a dictionary for the purpose of asking this question.</p>
  <p>This is what I have tried:</p>
  <pre><code>df[['Lat','Long']].apply(lambda x,y : geocoder.osm([x,y], method='reverse'),axis=1)
  </code></pre>
  <p>From this I got this error message:</p>
  <pre><code>TypeError: (&quot;&lt;lambda&gt;() missing 1 required positional argument: 'y'&quot;, 'occurred at index 0')
  </code></pre>