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how to check from a python string list which is the largest item and copy it to another list. i was trying this. but i dosnt Works.

cad_1 = ['hello', 'hello', 'ewe', 'uwu']
cad_final = {i,j for i,j in Cad_1 if len(i)>=len(j)}
print(cad_final);
zypro
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PanBASIC
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  • This will produce a `NameError` before even getting to the second line... the second line is a set comprehension and you can't loop through a list like that anyway. If you want help you need to clarify exactly what the error is. – sam-pyt Nov 06 '18 at 07:49
  • @PanBasic you want all longest strings (both "hello"s) or only one? – zypro Nov 06 '18 at 07:50
  • Welcome to StackOverflow! Are `hello`, `ewe`, and `uwu` variables or string? Can you clarify what do you mean by largest? Largest value? Longest string? By alphabetical order? – Andreas Nov 06 '18 at 07:50
  • Specify *"doesn't work"*. What is your expected output, and what is your actual output? As it stands, this code doesn't run. – SiHa Nov 06 '18 at 07:51

1 Answers1

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You can first create a dictionary with the respective string length: 

my_length_list = {i:len(i) for i in my_list}

and then get the largest element by

import operator

max_string_len = max(my_length_list.items(), key=operator.itemgetter(1))[0]

and write this value in another list

max_string_list = [max_string_len]
dheinz
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