Finding the length of items in a Tuple (python)

Question

I'm looking for a "for loop" that finds the length of each item and choose the largest number.

>>>T=[chicken, soda, candy]
>>>Highest = 0
>>>"for loop goes here"
>>>print (highest)
7

Answer 1

You need quotes around your strings (e.g. "chicken"), and the case of variables matters so Highest and highest are different. Also use round parentheses () for a tuple and square [] for a list.

A simple way to do this in Python is be to use max() to find the longest string, and len() to find the lengths, with the for keyword creating a generator expression:

T=("chicken", "soda", "candy")
Highest = max(len(x) for x in T)
print(Highest)

Slightly older versions of Python would use a list comprehension:

Highest = max([len(x) for x in T])

erip's answer showed how to use a for loop instead.

Answer 2

T is not a tuple, but a list. You can find out by doing print(type(T)). Try to read up on lists and Python programming in general, there are quite a few good resources available. If you want T to be a Tuple, simply change the brackets [] to regular () parenthesis like this T = ("chicken", "soda", "candy"), looping through it works the same way as mentioned below, so no need to change any of that.

The elements in your list T needs to be some kind of type or variable. What you are looking for is probably a String. To create the words as the String type, put it in double quotes like this "chicken".

Heres what I suspect that you are looking for:

T = ["chicken", "soda" ,"candy"]
Highest = 0
for word in T:
    lengthOfWord = len(word)
    if lengthOfWord > Highest:
        Highest = lengthOfWord
print(Highest)

You can also check out a live version here.

Answer 3

You can create list of lengths with the following:

[len(i) for i in T]

You can then call max on an iterable, which will return the maximum element.

Putting this together you have:

print(max([len(i) for i in T]))

If you want a for-loop explicitly, you can use this:

max_length = 0

for i in T:
  max_length = max(len(i), max_length))

print(max_length)

Note these both work for lists and tuples.

Answer 4

The question is not clear. But I hope this will help you.

T = ('chicken', 'soda', 'candy')

Highest = 0

for i in range(0, len(T)):
    if len(T[i]) > int(Highest):
        Highest = len(T[i])

print ("Highest is %d" % Highest)