Python Removing Duplicates in a String Using in and not in -


i'm trying use in , not in operators accumulator pattern remove duplicate letters string , return new string while maintaining order. 

withdups = "the quick brown fox jumped on lazy dog"  def removedups(s):     alphabet = "abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz"     swithoutdups = ""     eachchar in withdups:         if eachchar in alphabet:             swithoutdups = eachchar + swithoutdups         return swithoutdups  print(removedups(withdups))

my current code returns first letter of string. i'm new python , coding in general, please excuse if i'm overlooking simple, current code not right direction, or if i'm posting shouldn't be. 

withdups = "the quick brown fox jumped on lazy dog" withoutdups = ""  letter in withdups:     if letter not in withoutdups:         withoutdups += letter  print withoutdups

have in mind whitespaces considered character too.


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