在嵌套列表中查找最小值时出错

Question

list1=[['Harry', 37.21], ['Berry', 37.21], ['Tina', 37.2], ['Akriti', 41.0], ['Harsh', 39.0]]
runner=min(list1[:][1])

This is giving an error like:

 runner=min(list1[:][1]) TypeError: '<' not supported between instances of 'float' and 'str'

How can i find the min value of the floats (second elements)

Answer 1

To achieve the result you want, you'll need to iterate over this list!

min([el[1] for el in list1])

What you're actually doing with your statements is selecting element 1 from the list, then trying to find the minimum of ['Berry', 37.21] which obviously raises TypeError: '<' not supported between instances of 'float' and 'str' since "Berry" is not a float that min can compare!

Hope that helps!