Same Python code returns different results for same input string
Question: Below code is supposed to return the most common letter in the TEXT string in
the format:

  * always lowercase
  * ignoring punctuation and spaces
  * in the case of words such as "One" - where there is no 2 letters the same - return the first letter in the alphabet

Each time I run the code using the same string, e.g. "One" the result cycles
through the letters...weirdly though, only from the third try (in this "One"
example).

    
    
    text=input('Insert String: ')
    def mwl(text):
        from string import punctuation
        from collections import Counter
        for l in punctuation:
            if l in text:
                text = text.replace(l,'')
        text = text.lower()
        text=''.join(text.split())
        text= sorted(text)
        collist=Counter(text).most_common(1)
        print(collist[0][0])
    mwl(text)   
    


Answer: `Counter` uses a dictionary:

    
    
    >>> Counter('one')
    Counter({'e': 1, 'o': 1, 'n': 1})
    

Dictionaries are not ordered, hence the behavior.

