搜索关键字：

• python interview question
• Python 面试问题

参考链接：

• http://www.ilian.io/python-interview-question-and-answers/
• http://xiaocong.github.io/blog/2013/06/16/python-interview-question-and-answer/
• http://www.toptal.com/python/interview-questions
• http://www.reddit.com/r/Python/comments/1knw7z/python_interview_questions
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• http://www.geekinterview.com/Interview-Questions/Programming/Python
• http://www.quora.com/What-are-good-Python-interview-questions
• http://www.careerride.com/python-interview-questions.aspx

参考问题列表：

• 字符串的处理和正则表达式。
• 如何操作json和xml数据。
• 参数是如何传递的？传值还是传引用？(How are arguments passed – by reference of by value?)
• 什么是列表和字典推导(list and dict comprehensions)？你能给个例子吗？
• 什么是 PEP 8？
• 如何计算列表里所有元素的和？如何计算列表里所有元素的乘积？
• 你能列出列表(list)和元组(tuple)的区别吗？举例子说明用法的不同。
• 你知道range和xrange的区别吗？
• 请说出一些 python2.x 与 python3.x 之间的区别。
• 什么是修饰器(Decorator)？你能说出它的用途吗？
• with语句及其用法？
• Package/Module的定义和区别，以及模块加载的原则。
• 如何进行Package/Module的打包和分发？
• 生成器(generator)的概念以及使用方式。
• 你常用的 built-in 类型和函数有哪些？好处在哪？
• 什么是 WSGI ？
• 元类编程(metaclass)的概念，以及如何使用？

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• http://www.reddit.com/r/Python/comments/1knw7z/python_interview_questions
• http://www.reddit.com/r/Python/comments/dxvtv/favorite_python_interview_question/
• http://programmers.stackexchange.com/questions/21917/python-interview-questions
• http://ilian.i-n-i.org/python-interview-question-and-answers/

##

easy/intermediate
    #Python中的装饰器(decorator)是什么，有什么作用？
    What are Python decorators and how would you use them?
    #你如何解决项目中使用依赖于不同Python版本的第三方库的问题的？
    How would you setup many projects where each one uses different versions of Python and third party libraries?
    #PEP8是什么，你自己在编码时会考虑到其中的规范问题么？
    What is PEP8 and do you follow its guidelines when you're coding?
    #Python中的参数传递到底是值传递还是引用传递？
    How are arguments passed – by reference of by value? (easy, but not that easy, I'm not sure if I can answer this clearly)
    #列表推导式和字典推导式
    Do you know what list and dict comprehensions are? Can you give an example?
    #用3种不同的方法取每一个列表中的第三个元素
    Show me three different ways of fetching every third item in the list
    #列表和元组的不同之处在哪？
    Do you know what is the difference between lists and tuples? Can you give me an example for their usage?
    #Python2中range和xrange的不同之处
    Do you know the difference between range and xrange?
    #Python2和Python3的不同之处有哪些？
    Tell me a few differences between Python 2.x and 3.x?
    #with语句的使用
    The with statement and its usage.
    #如何避免重复引用？
    How to avoid cyclical imports without having to resort to imports in functions?
    #from xx import * 这样有什么不好？
    What's wrong with import all?
    #GIL的重要性
    Why is the GIL important? (This actually puzzles me, don't know the answer)
    #什么是特殊方法，它们如何工作的，举例说明
    What are "special" methods (<foo>), how they work, etc
    #你能像操作"first-class object"那样操作函数么？
    can you manipulate functions as first-class objects?
    #"class Foo" 和 "class Foo(object)" 的不同之处
    the difference between "class Foo" and "class Foo(object)"

tricky, smart ones
    #在Python中如何读取一个8G大小的文件？
    how to read a 8GB file in python?
    #你不喜欢Python中的什么特性/语法？
    what don't you like about Python?
    #如何独立将一个ascii码转换成整数而不使用内置方法或函数？
    can you convert ascii characters to an integer without using built in methods like string.atoi or int()? curious one

subjective ones
    #你在Python编码时使用Tab还是空格？
    do you use tabs or spaces, which ones are better?

Ok, so should I add something else or is the list comprehensive?

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Python中module和package的不同之处

• http://stackoverflow.com/questions/7948494/whats-the-difference-between-a-python-module-and-a-python-package
• http://stackoverflow.com/questions/19198166/whats-the-difference-between-a-module-and-a-library-in-python
• http://programmers.stackexchange.com/questions/111871/module-vs-package
• http://www.quora.com/What-is-the-difference-between-a-python-module-package-And-when-to-use-which-one

Python中的WSGI是什么？

• https://www.python.org/dev/peps/pep-0333/
• http://wsgi.readthedocs.org/en/latest/
• http://blog.csdn.net/on_1y/article/details/18803563
• https://github.com/minixalpha/SourceLearning/tree/master/wsgiref-0.1.2
• http://blog.kenshinx.me/blog/wsgi-research/
• http://www.ibm.com/developerworks/library/wa-wsgi/

Python的元类编程

• http://blog.jobbole.com/21351/
• http://www.ibm.com/developerworks/cn/linux/l-pymeta/
• http://blog.csdn.net/gzlaiyonghao/article/details/3048947
• http://pycon.b0.upaiyun.com/ppt/shell909090-meta-class.html
• =
• http://www.liaoxuefeng.com/wiki/001374738125095c955c1e6d8bb493182103fac9270762a000/001386820064557c69858840b4c48d2b8411bc2ea9099ba000
• http://dnscai.com/blog/2013/05/08/python-meta-programming-auto-create-class/

Python中的修饰器(@decorator)

• #Python的修饰符详解http://coolshell.cn/articles/11265.html
• #在使用Python的修饰符时需要注意的地方http://blog.sina.com.cn/s/blog_967e337b01012bxb.html

对Python中 *args 和 **kwargs 的解释

搜索关键字：python *args **kwargs

• http://www.cnblogs.com/Blaxon/p/4520128.html
• http://pythontips.com/2013/08/04/args-and-kwargs-in-python-explained/
• http://stackoverflow.com/questions/287085/what-do-args-and-kwargs-mean
• http://stackoverflow.com/questions/3394835/args-and-kwargs

Python中参数是如何传递的？传值还是传引用？

回答：“都不是”，事实上 Python 里是传对象(a reference to an object)

搜索关键字：

python How are arguments passed

参考链接：

• http://stackoverflow.com/questions/986006/how-do-i-pass-a-variable-by-reference
• http://robertheaton.com/2014/02/09/pythons-pass-by-object-reference-as-explained-by-philip-k-dick/
• https://www.jeffknupp.com/blog/2012/11/13/is-python-callbyvalue-or-callbyreference-neither/

在Python中如何计算列表里所有元素的和？如何计算列表里所有元素的乘积？

#基本loop方式，sum函数方式，以及使用reduce函数
# the basic way
s = 0
for x in range(10):
	s += x

# the right way
s = sum(range(10))

# the other way
from operator import add
s = reduce(add, range(10))

你能列出列表(list)和元组(tuple)的区别吗？举例子说明用法的不同。

搜索关键字：python difference between list and tuple

参考链接：

• http://stackoverflow.com/questions/626759/whats-the-difference-between-list-and-tuples
• http://www.quora.com/What-are-the-differences-between-tuples-and-lists-in-Python
• https://www.daniweb.com/software-development/python/threads/140142/list-vs-tuples

参考解答：

列表和元组是 Python 里最基本的两个数据类型：

首先，列表对象是可变的(mutable)，但元组不是；

其次，元组可被哈希(hashable)，例如可以用作字典对象的键(key)；

至于例子，地图上的地理坐标可以用二元组表示，而地图上的路径可以用坐标点列表来表示。

但也并不是所有的 tuple 都是可被hash的，比如：包含了list等不可hash的内容的tuple就无法被hash

• http://stackoverflow.com/questions/8072515/unable-to-use-a-tuple-as-a-dictionary-key

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