how to find the longst element list of lists

[Michael M.]

How to find the longst element list of lists?

I think, there should be an easier way then this:

   s1 = ["q", "e", "d"]
   s2 = ["a", "b"]
   s3 = ["a", "b", "c", "d"]

   if len(s1) >= len(s2) and len(s1) >= len(s3):
     sx1=s1  ## s1 ist längster
     if len(s2) >= len(s3):
       sx2=s2
       sx3=s3
     else:
       sx2=s3
       sx3=s2

   if len(s2) >= len(s3) and len(s2) >= len(s1):
     sx1=s2  ## s2 ist längster
     if len(s3) >= len(s1):
       sx2=s3
       sx3=s1
     else:
       sx2=s1
       sx3=s3

   if len(s3) >= len(s1) and len(s3) >= len(s2):
     sx1=s3  ## s3 ist längster
     if len(s1) >= len(s2):
       sx2=s1
       sx3=s2
     else:
       sx2=s2
       sx3=s1

After, the list ist sorted:

   sx1 = ["a", "b", "c", "d"]
   sx2 = ["q", "e", "d"]
   sx3 = ["a", "b"]