Python Recipes vs Matplotlib教程

An everyday Python reference, from strings and collections to threading and design patterns. Every example comes with an explanation, and most of them run. The construct is on the tip of your tongue, but the exact syntax slips away: • How do you sort a dictionary by value? • How do you serialize a class to JSON and read it back? • How do you start a thread and wait for the result? The app answers with a working example; all that is left is to fit it to your task. • 22 sections: basic types, arrays and collections, classes, files, serialization, functions and lambdas, exceptions, regular expressions, threading, databases, algorithms, design patterns. • Run in the app: the example actually runs and the output appears under the code. Needs an internet connection. • What changed in new versions: 8 sections from Python 3.0 to 3.13, with the old and the new code side by side. • Keyword and function reference: over 200 articles, open in full, with no daily limit. • SQL alongside: over 200 queries against a live practice database (JOIN, GROUP BY, subqueries, data types). • Edit examples and add your own; they stay in the app and are always at hand. • Search looks inside the code itself, not just the titles: remember a fragment and you will find the example. • Everything except running works offline. No account needed. WHAT THE FREE VERSION INCLUDES 12 runs and 12 edits a day; the counter resets every morning. The keyword reference is open without limits. Up to 5 examples of your own. The full version unlocks every example, lifts the daily limits and raises the run limit to 30 a day. One purchase, no subscription. Built by a developer for developers. In active development since 2015.

Matplotlib 是 Python 的绘图库，它能让使用者很轻松地将数据图形化，并且提供多样化的输出格式。 Matplotlib 可以用来绘制各种静态，动态，交互式的图表。 Matplotlib 是一个非常强大的 Python 画图工具，我们可以使用该工具将很多数据通过图表的形式更直观的呈现出来。 Matplotlib 可以绘制线图、散点图、等高线图、条形图、柱状图、3D 图形、甚至是图形动画等等。