Say that I want to sort a list of numbers but prioritize one group of numbers to come f...
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Item 21: Know How Closures Interact with Variable Scope
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Item 20: Prefer Raising Exceptions to Returning None
When writing utility functions, there’s a draw for Python programmers to give special m...
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Item 19: Never Unpack More Than Three Variables When Functions Return Multiple Values
One effect of the unpacking syntax (see Item 6: “Prefer Multiple Assignment Unpacking O...
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Item 18: Know How to Construct Key-Dependent Default Values with __missing__
The built-in dict type’s setdefault method results in shorter code when handling missin...
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Item 17: Prefer defaultdict Over setdefault to Handle Missing Items in Internal State
When working with a dictionary that you didn’t create, there are a variety of ways to h...
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看一下演示效果（二）
由于视频文件无法在文档中直接播放，请点击查看演示效果[https://www.bilibili.com/video/BV113411e7jL?share_source=cop...
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Item 16: Prefer get Over in and KeyError to Handle Missing Dictionary Keys
The three fundamental operations for interacting with dictionaries are accessing, assig...
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拜拜了~Print ! 这个神器PySnooper 来了！
PySnooper是一个非常方便的调试器。如果您正在试图弄清楚为什么您的Python代码没有按照您的预期去做，您会希望使用具有断点和监视功能的成熟Debug工具，但是许多De...
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NiceBigBoyAutoTestFramework简介(一)
这是一个「易于实现、易于使用」的自动化测试框架。 "人生苦短，我用python"，本框架是使用python语言实现的，它是一门易于上手的语言，我用python的一些基础语法实...
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Item 15: Be Cautious When Relying on dict Insertion Ordering
In Python 3.5 and before, iterating over a dict would return keys in arbitrary order. T...
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Item 14: Sort by Complex Criteria Using the key Parameter
The list built-in type provides a sort method for ordering the items in a list instance...
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Item 13: Prefer Catch-All Unpacking Over Slicing
One limitation of basic unpacking (see Item 6: “Prefer Multiple Assignment Unpacking Ov...
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Item 12: Avoid Striding and Slicing in a Single Expression
In addition to basic slicing (see Item 11: “Know How to Slice Sequences”), Python has s...
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Item 11: Know How to Slice Sequences
Python includes syntax for slicing sequences into pieces. Slicing allows you to access ...
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Item 10: Prevent Repetition with Assignment Expressions
An assignment expression—also known as the walrus operator—is a new syntax introduced i...
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Item 9: Avoid else Blocks After for and while Loops
Python loops have an extra feature that is not available in most other programming lang...
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Item 8: Use zip to Process Iterators in Parallel
Often in Python you find yourself with many lists of related objects. List comprehensio...
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Item 7: Prefer enumerate Over range
The range built-in function is useful for loops that iterate over a set of integers:ran...
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Item 6: Prefer Multiple Assignment Unpacking Over Indexing
Python has a built-in tuple type that can be used to create immutable, ordered sequence...
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Item 5: Write Helper Functions Instead of Complex Expressions
Python’s pithy syntax makes it easy to write single-line expressions that implement a l...