Returning the longest word in Python

Question

Dear all! My code should return the longest word in a sentence provided by the user and i should not use "max" or "split" in this exercise. Where's the mistake in my code?

txt = input()
count1 = 0
count2 = 0
for word in list(txt):
for char in word:
count1 =+1
if count2 <= count1:
count2 = count1
longest_word = word
print(longest_word)

EDIT: SOLUTION WITHOUT MAX AND SPLIT:

txt = input()+' '
count = 0
max_length = 0
word = ''
for char in txt:
if char != ' ':
count += 1
word += char
else:
if max_length <= count:
max_length = count
longest_word = word
word = ''
count = 0
print(longest_word)

SOLUTION WITH MAX AND SPLIT:

txt = input()
longest_word = max(txt.split(), key=len)
print(longest_word)

Answer 1

here is a code with 3 variations and 4 outputs:

https://code.sololearn.com/cDUQNNYilTPW/?ref=app

1) print 1st longest 'word' (any not space consecutive char)

2) print 1st longest 'word' (any consecutive letters)

3) print all longest 'words' (any consecutive letter)

4) print same 'words' list, but without repetition and sorted

finally, there is hint to check other chars than letters as well...

example input to provide and see differences of each output:

"there are 'words' without letters and spaces only and with somes letters suit wich occurs twice"

Answer 2

Using for loops on this question can be really tricky, I tried for almost 4hours. but I found a good way. try splitting your input and then use key=len method as shown below:

txt = input()# enter a string
# Finding longest word
longest_word = max(txt.split(), key=len)
print("The longest word is ", longest_word, " ==> ", len(longest_word), "characters")

Answer 3

for w in list(txt): will extract individual charecters from txt to w. But Not words as you expecting... So you get only 1 charecter all time.