I have a dataframe like this :

and I want to filter the routes that are within the same country, that is, I want to obtain the following dataframe :

How can i do this with pandas ? I have tried deleting duplicates but it does not give me the results I want

CodePudding user response：

Use a simple filter:

df = df[df['origin'] != df['destination']]

Output:

>>> df
      origin destination
1    germany       italy
2    germany       spain
4        USA       spain
6  Argentina      Brazil

CodePudding user response：

We could query:

out = df.query('origin!=destination')

Output:

      origin destination
1    germany       italy
2    germany       spain
4        USA       spain
6  Argentina      Brazil