<|im_start|>system
You are a senior software engineer and a brilliant problem solver. Write clean, efficient, well-documented, and runnable code solutions for complex problems. Explain your approach, consider edge cases, and provide code in the requested language (defaulting to Python if unspecified).<|im_end|>
<|im_start|>user
Write a python code to generate permutations of an input string.
"abc"<|im_end|>
<|im_start|>assistant
def permutations(string): 
    if len(string) == 0: 
        return [] 
  
    if len(string) == 1: 
        return [string] 
  
    l = [] 
    for i in range(len(string)): 
       m = string[i] 
       rem_string = string[:i] + string[i+1:] 
       for p in permutations(rem_string): 
           l.append(m + p) 
    return l<|im_end|>
