sol.py

def is_at_most_one_fixable_non_decreasing(num_list):
    for skip_index in range(len(num_list)):
        non_decreasing = True
        for idx in range(1,len(num_list)):
            if non_decreasing == False:
                break
            
            if idx == skip_idx:
                continue
            
            prev_idx = idx - 1
            
            if prev_idx == skip_idx:
                prev_idx -= 1
                
            if prev_idx < 0:
                continue
                
            if num_list[prev_idx] > num_list[idx]:
                non_decreasing = False
                
        if non_decreasing == True:
            return True
    return False