I have to write a script in python that will do following actions 
I have a xlsx/csv file in which there are 300 cities listed in one column 

1. I have to make all pairs between them and also with help of google api I have to add their distance and travel time in the second column

my **CSV file** is looks like this:  

```
=======
SOURCE 
=======
Agra 
Delhi 
Jaipur 

```

and expected output **in csv/xlsx file** be like this  

```
=============================================
SOURCE | DESTINATION | DISTANCE | TIME_TRAVEL
=============================================
Agra   |    Delhi    |    247   |      4    
Agra   |    Jaipur   |    238   |      4    
Delhi  |    Agra     |    247   |      4    
Delhi  |    jaipur   |    281   |      5
Jaipur |    Agra     |    238   |      4    
Jaipur |    Delhi    |    281   |      5        

```

and so on.. how to do this.?  

**NOTE**: Distance and Travel Time are from google.