#coding:utf-8
        #sort
        
        #データの用意
        import random
        
        data = []
        for i in range(10):
            data.append(random.randint(1,50))
        #print(data)
        
        bsdata = data.copy()
        print(bsdata)
        n = len(bsdata)
        
        #番兵付きバブルソート
        flag = 0
        for i in range(n):
            flag = 0
            for j in range(n-1, i, -1):
                if bsdata[j] < bsdata[j-1]:
                    '''
                    temp = bsdata[j]
                    bsdata[j] = bsdata[j-1]
                    bsdata[j-1] = temp
                    '''
                    flag = 1
                    #python swap
                    bsdata[j],bsdata[j-1] = bsdata[j-1],bsdata[j]
            if flag == 0:
                print(i)
                break
        
        print("バブルソート",bsdata)
        
        #python build-in
        bidata = data.copy()
        bidata.sort()
        print("昇順reverse",bidata)
        
        dedata = data.copy()
        dedata.sort(reverse=True)
        print("降順",dedata)
        
        #文字例ソート
        list1 = ["バナナ","リンゴ","なし","マンゴー","ブドウ"]
        print(list1)
        
        list2 = list1.copy()
        list2.sort()
        print(list2)
        
        #文字ソートbynumber of letters：
        def myfunc(e):
            return len(e)
        
        list3 = list1.copy()
        list3.sort(key=myfunc)
        print(list3)
            

実行結果