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pythonpython-3.xtuplesargsgeopy

Calling a Python Function (geopy.distance.great_circle()) with multiple dynamic tuples in arguments

I've a List of Tuples which is created dynamically and hence, its length can vary. An example of this list is:-

mylist=[(18.521428, 73.8544541), (28.6517178, 77.2219388), (18.9387711, 72.8353355)]

Now, I need to call the great_circle() of geopy.distance, in such a way that I should pass all my tuples as the parameters. Something like this-

great_circle((18.521428, 73.8544541), (28.6517178, 77.2219388), (18.9387711, 72.8353355))

But unable to do so, because the function great_circle(*args, **kwargs) is expecting individual tuples instead of a list of tuples. It is raising following exception:-

TypeError: unsupported operand type(s) for +=: 'int' and 'list'

So, can you suggest how it can be done ?

Solution

  • You can do it in one line, as long as you are sure that your list contains exactly the same amount of input as required. Just do:

    great_circle(*mylist)

    The * Operator will extract your data from the list, which will be equivalent to what you want.

    Hope this helps.