pyecharts零基础起步(win7+Anaconda3)

环境：win7

1、若需要安装Anaconda则前往 https://www.anaconda.com/distribution/ 下载并按其文档说明进行安装

然后前往官网下载安装包Pyecharts

https://pypi.org/project/pyecharts/#files

2、将Pyecharts文件(也就是下载的pyecharts-1.6.2-py3-none-any.whl文件)放到Anaconda3的pkgs目录下
3、打开Anaconda Prompt,输入cd anaconda3/pkgs进入文件夹
4、输入pip install pyecharts-1.6.2-py3-none-any.whl即可安装成功
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版权声明：本文参考优快云博主「恪守不渝」的原创文章，遵循 CC 4.0 BY-SA 版权协议，转载请附上原文出处链接及本声明。
原文链接：https://blog.youkuaiyun.com/weixin_44010678/article/details/88362093

本方案亲自验证有效。

本文以桑基图为例，进行绘制图形的实验。

什么是桑基图？请参考

https://baike.baidu.com/item/%E6%A1%91%E5%9F%BA%E5%9B%BE/10773057?fr=aladdin

桑基图有什么用？请参考

https://www.zhihu.com/question/45502919

接下来看如何绘制图形

按照旧代码添加

from pyecharts import Sankey

会报错：

ImportError: cannot import name 'Sankey' from 'pyecharts' (C:\ProgramData\Anaconda3\lib\site-packages\pyecharts\__init__.py)

然后改成下面桑基图代码例子进行import，则可以绘制任意定义好nodes节点、links边（包含起点、终点、边值的三元组）的桑基图了：

import asyncio
import pyecharts.options as opts
from pyecharts.charts import Sankey

async def get_json_data(url: str) -> dict:
    async with ClientSession(connector=TCPConnector(ssl=False)) as session:
        async with session.get(url=url) as response:
            return await response.json()

# 获取官方的数据

    nodes1=[
    {'name': 'Songhua_PPT'}, {'name': 'Songhua_RWCN'}, {'name': 'Songhua_CWC'},
    {'name': 'Songhua_IWCC'}, {'name': 'Songhua_RWCC'},{'name': 'Songhua_ET'},
    {'name': 'Songhua_FWS'},
    
    {'name': 'Liao_PPT'}, {'name': 'Liao_RWCN'}, {'name': 'Liao_CWC'},
    {'name': 'Liao_IWCC'}, {'name': 'Liao_RWCC'},{'name': 'Liao_ET'},
    {'name': 'Liao_FWS'},
    
    {'name': 'Hai_PPT'}, {'name': 'Hai_RWCN'}, {'name': 'Hai_CWC'},
    {'name': 'Hai_IWCC'}, {'name': 'Hai_RWCC'},{'name': 'Hai_ET'},
    {'name': 'Hai_FWS'},
    
    {'name': 'Yellow_PPT'}, {'name': 'Yellow_RWCN'}, {'name': 'Yellow_CWC'},
    {'name': 'Yellow_IWCC'}, {'name': 'Yellow_RWCC'},{'name': 'Yellow_ET'},
    {'name': 'Yellow_FWS'},
    
    {'name': 'Huai_PPT'}, {'name': 'Huai_RWCN'}, {'name': 'Huai_CWC'},
    {'name': 'Huai_IWCC'}, {'name': 'Huai_RWCC'},{'name': 'Huai_ET'},
    {'name': 'Huai_FWS'},

    {'name': 'Yangtze_PPT'}, {'name': 'Yangtze_RWCN'}, {'name': 'Yangtze_CWC'},
    {'name': 'Yangtze_IWCC'}, {'name': 'Yangtze_RWCC'},{'name': 'Yangtze_ET'},
    {'name': 'Yangtze_FWS'},
    
    {'name': 'Pearl_PPT'}, {'name': 'Pearl_RWCN'}, {'name': 'Pearl_CWC'},
    {'name': 'Pearl_IWCC'}, {'name': 'Pearl_RWCC'},{'name': 'Pearl_ET'},
    {'name': 'Pearl_FWS'},
        ],
links1 =[
    {'source': 'Songhua_ET', 'target': 'Songhua_RWCN', 'value': 371.75},
    {'source': 'Songhua_ET', 'target': 'Songhua_FWS', 'value': 104.92},
    {'source': 'Songhua_PPT', 'target': 'Songhua_ET', 'value':448.01},
    {'source': 'Songhua_ET', 'target': 'Songhua_CWC', 'value': 76.25},
    {'source': 'Songhua_CWC', 'target': 'Songhua_IWCC', 'value': 10.37},
    {'source': 'Songhua_CWC', 'target': 'Songhua_RWCC', 'value': 65.88},
    {'source': 'Liao_ET', 'target': 'Liao_RWCN', 'value': 389.05},
    {'source': 'Liao_ET', 'target': 'Liao_FWS', 'value': 84.44},
    {'source': 'Liao_PPT', 'target': 'Liao_ET', 'value':496.07},
    {'source': 'Liao_ET', 'target': 'Liao_CWC', 'value': 107.021},
    {'source': 'Liao_CWC', 'target': 'Liao_IWCC', 'value': 18.69},
    {'source': 'Liao_CWC', 'target': 'Liao_RWCC', 'value': 88.32},
    {'source': 'Hai_ET', 'target': 'Hai_RWCN', 'value': 285.70},
    {'source': 'Hai_ET', 'target': 'Hai_FWS', 'value': 120.27},
    {'source': 'Hai_PPT', 'target': 'Hai_ET', 'value':450.83},
    {'source': 'Hai_ET', 'target': 'Hai_CWC', 'value': 165.12},
    {'source': 'Hai_CWC', 'target': 'Hai_IWCC', 'value': 43.38},
    {'source': 'Hai_CWC', 'target': 'Hai_RWCC', 'value': 121.74},
    {'source': 'Yellow_ET', 'target': 'Yellow_RWCN', 'value': 347.577},
    {'source': 'Yellow_ET', 'target': 'Yellow_FWS', 'value': 44.624},
    {'source': 'Yellow_PPT', 'target': 'Yellow_ET', 'value':412.6816},
    {'source': 'Yellow_ET', 'target': 'Yellow_CWC', 'value': 65.1038},
    {'source': 'Yellow_CWC', 'target': 'Yellow_IWCC', 'value': 13.5165},
    {'source': 'Yellow_CWC', 'target': 'Yellow_RWCC', 'value': 51.5873},
    {'source': 'Huai_ET', 'target': 'Huai_RWCN', 'value': 365.67},
    {'source': 'Huai_ET', 'target': 'Huai_FWS', 'value': 250.32},
    {'source': 'Huai_PPT', 'target': 'Huai_ET', 'value':711.66},
    {'source': 'Huai_ET', 'target': 'Huai_CWC', 'value': 345.99},
    {'source': 'Huai_CWC', 'target': 'Huai_IWCC', 'value': 90.74},
    {'source': 'Huai_CWC', 'target': 'Huai_RWCC', 'value': 255.24},
    {'source': 'Yangtze_ET', 'target': 'Yangtze_RWCN', 'value': 696.42},
    {'source': 'Yangtze_ET', 'target': 'Yangtze_FWS', 'value': 278.12},
    {'source': 'Yangtze_PPT', 'target': 'Yangtze_ET', 'value':831.75},
    {'source': 'Yangtze_ET', 'target': 'Yangtze_CWC', 'value': 135.32},
    {'source': 'Yangtze_CWC', 'target': 'Yangtze_IWCC', 'value': 33.17},
    {'source': 'Yangtze_CWC', 'target': 'Yangtze_RWCC', 'value': 102.15},
    {'source': 'Pearl_ET', 'target': 'Pearl_RWCN', 'value': 1151.49},
    {'source': 'Pearl_ET', 'target': 'Pearl_FWS', 'value': 210.62},
    {'source': 'Pearl_PPT', 'target': 'Pearl_ET', 'value':1376.94},
    {'source': 'Pearl_ET', 'target': 'Pearl_CWC', 'value': 225.44},
    {'source': 'Pearl_CWC', 'target': 'Pearl_IWCC', 'value': 45.88},
    {'source': 'Pearl_CWC', 'target': 'Pearl_RWCC', 'value': 179.60}
     
]#
(
    Sankey(init_opts=opts.InitOpts(width="1600px", height="800px"))
    .add(
        series_name="",
        nodes=nodes1,
        links=links1,
        itemstyle_opts=opts.ItemStyleOpts(border_width=1, border_color="#aaa"),
        linestyle_opt=opts.LineStyleOpts(color="source", curve=0.5, opacity=0.5),
        tooltip_opts=opts.TooltipOpts(trigger_on="mousemove"),
    )
    .set_global_opts(title_opts=opts.TitleOpts(title="Sankey Diagram"))
    .render(path="F:/Python/sankey_diagram.html",delay=3)
)

更多绘图案例请参考github：

https://github.com/pyecharts/pyecharts-gallery