建议1：理解pythonic概念

《The Zen of the Python》（python之禅）相信大家都听说过。
Beautiful is better than ugly.
Explicit is better than implicit.
Simple is better than complex.
Complex is better than complicated.
Flat is better than nested.
Sparse is better than dense.
Readability counts.
Special cases aren't special enough to break the rules.
Although practicality beats purity.
Errors should never pass silently.
Unless explicitly silenced.
In the face of ambiguity, refuse the temptation to guess.
There should be one-- and preferably only one --obvious way to do it.
Although that way may not be obvious at first unless you're Dutch.
Now is better than never.
Although never is often better than *right* now.
If the implementation is hard to explain, it's a bad idea.
If the implementation is easy to explain, it may be a good idea.
Namespaces are one honking great idea -- let's do more of those!

断断续续用了python一年多时间，没学得多深入，但是看多了说python哲学的帖子和文章，我觉得对pythonic的理解，得多看别人写的代码，有些实现让人觉得很优美，或许这就是pythonic。

（1）伪代码可以直接改成python代码

根据维基百科中快速排序的描述
可以直接翻译成python代码：

def quick_sort(array):
    if len(array) <= 1:
        return array
    less = []
    greater = []
    pivot = array.pop()

    for x in array:
        if x < pivot:
            less.append(x)
        else:
            greater.append(x)
    return quick_sort(less) + [pivot] + quick_sort(greater)

array = [random.randint(-10000000, 1000000) for x in range(1000)]

A = sorted(array)
B = quick_sort(array)

for i in range(len(array)):
    if A[i] != B[i]:
        print('not equel!')
        print('index are: {index}'.format(index=i))
        print(A[i], B[i])
        break
else:
    print('yes')

实现快排只要短短几行，而且容易理解

（2）交换a, b两个变量的值

在c/c++/java里：

int a=1, b=2;
int c = a;
a = b;
b = c;

c++ STL:
std::swap(a, b)

位运算:
a = a^b;
b = a^b;
a = a^b;

在python里:

a, b = b, a

（3）使用上下文管理器

with open(filename, mode='r', encoding='utf-8') as fp:
    line = fp.readline()
    do something

使用上下文管理器后，不需要显示的关闭，将由系统自动关闭文件

（4）字符串格式化:

以往我是这样输出的print('%s' % 'lrh')这样十分不直观
推荐使用str.format()：

print('{name} from {country}'.format(name='lrh', country='china'))