Trim common suffix from sequences

trim_common_suffix.py

def trim_common_suffix(sequences):                                                                                                                                                                               
    """                                                                                                                                                                                                          
    Trim a list of sequences by removing the longest common suffix while                                                                                                                                         
    leaving all of them at least one character in length.                                                                                                                                                        
    """                                                                                                                                                                                                          
    if not sequences:                                                                                                                                                                                            
        return []                                                                                                                                                                                                
    reverses = [seq[::-1] for seq in sequences]                                                                                                                                                                  
    rev_min = min(reverses)                                                                                                                                                                                      
    rev_max = max(reverses)                                                                                                                                                                                      
    if len(rev_min) < 2:                                                                                                                                                                                         
        return sequences                                                                                                                                                                                         
    for i, c in enumerate(rev_min[:-1]):                                                                                                                                                                         
        if c != rev_max[i]:                                                                                                                                                                                      
            if i == 0:                                                                                                                                                                                           
                return sequences                                                                                                                                                                                 
            return [seq[:-i] for seq in sequences]                                                                                                                                                               
    return [seq[:-(i + 1)] for seq in sequences]