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> 【记录】折腾Python中的一个绘制图表的模块：pycha
背景看到提到pycha，说是关于用python画图表的。之前也已经折腾过一个类似的，操作Excel中去画图表的：现在这个，貌似是独立的，画图表的。pycha简介根据Python官网和其主页的介绍:pycha是啥pycha是个Python模块，用来画图表的的模块。pycha是PYthon CHArts的缩写； 一些例子： pycha的优点/特点轻量级用起来简单使用默认值，画出来的效果就已经很好看了可以自定义，定制化没打算支持所有类型的图表，但是尽量支持最常见的，最通用的图表 pycha的相关介绍1.其用到了库。2. 与此类似的模块，还有：3. Pycha基于，而又基于之前其是用javascript实现的（运行在客户端），作者希望其可以在服务端运行，所以将移植成用Python实现。4. 官网文档： 下载pycha在中就可以找到下载地址：下载得到pycha-0.6.0.tar.gz，解压，得到文件夹pycha-0.6.0。 安装pycha安装之前，发现此处依赖的cairo，还没安装，肯定待会使用也是不行的。所以先去折腾安装cairo，详见：安装完毕了python版本的cairo，Pycairo后，再去继续安装pycha。 打开cmd，切换到对应目录pycha-0.6.0，去执行setup.py install，此处竟然出现没有setuptools的错误。详细折腾过程参见：然后再去安装，就正常了：D:\tmp\dev_tools\python\pycha\dist\pycha-0.6.0&setup.py install
running install
running bdist_egg
running egg_info
writing pycha.egg-info\PKG-INFO
writing top-level names to pycha.egg-info\top_level.txt
writing dependency_links to pycha.egg-info\dependency_links.txt
writing entry points to pycha.egg-info\entry_points.txt
reading manifest file 'pycha.egg-info\SOURCES.txt'
reading manifest template 'MANIFEST.in'
writing manifest file 'pycha.egg-info\SOURCES.txt'
installing library code to build\bdist.win-amd64\egg
running install_lib
running build_py
creating build
creating build\lib
creating build\lib\pycha
copying pycha\bar.py -& build\lib\pycha
copying pycha\chart.py -& build\lib\pycha
copying pycha\color.py -& build\lib\pycha
copying pycha\line.py -& build\lib\pycha
copying pycha\pie.py -& build\lib\pycha
copying pycha\scatter.py -& build\lib\pycha
copying pycha\stackedbar.py -& build\lib\pycha
copying pycha\utils.py -& build\lib\pycha
copying pycha\__init__.py -& build\lib\pycha
creating build\lib\chavier
copying chavier\app.py -& build\lib\chavier
copying chavier\dialogs.py -& build\lib\chavier
copying chavier\gui.py -& build\lib\chavier
copying chavier\__init__.py -& build\lib\chavier
creating build\bdist.win-amd64
creating build\bdist.win-amd64\egg
creating build\bdist.win-amd64\egg\chavier
copying build\lib\chavier\app.py -& build\bdist.win-amd64\egg\chavier
copying build\lib\chavier\dialogs.py -& build\bdist.win-amd64\egg\chavier
copying build\lib\chavier\gui.py -& build\bdist.win-amd64\egg\chavier
copying build\lib\chavier\__init__.py -& build\bdist.win-amd64\egg\chavier
creating build\bdist.win-amd64\egg\pycha
copying build\lib\pycha\bar.py -& build\bdist.win-amd64\egg\pycha
copying build\lib\pycha\chart.py -& build\bdist.win-amd64\egg\pycha
copying build\lib\pycha\color.py -& build\bdist.win-amd64\egg\pycha
copying build\lib\pycha\line.py -& build\bdist.win-amd64\egg\pycha
copying build\lib\pycha\pie.py -& build\bdist.win-amd64\egg\pycha
copying build\lib\pycha\scatter.py -& build\bdist.win-amd64\egg\pycha
copying build\lib\pycha\stackedbar.py -& build\bdist.win-amd64\egg\pycha
copying build\lib\pycha\utils.py -& build\bdist.win-amd64\egg\pycha
copying build\lib\pycha\__init__.py -& build\bdist.win-amd64\egg\pycha
byte-compiling build\bdist.win-amd64\egg\chavier\app.py to app.pyc
byte-compiling build\bdist.win-amd64\egg\chavier\dialogs.py to dialogs.pyc
byte-compiling build\bdist.win-amd64\egg\chavier\gui.py to gui.pyc
byte-compiling build\bdist.win-amd64\egg\chavier\__init__.py to __init__.pyc
byte-compiling build\bdist.win-amd64\egg\pycha\bar.py to bar.pyc
byte-compiling build\bdist.win-amd64\egg\pycha\chart.py to chart.pyc
byte-compiling build\bdist.win-amd64\egg\pycha\color.py to color.pyc
byte-compiling build\bdist.win-amd64\egg\pycha\line.py to line.pyc
byte-compiling build\bdist.win-amd64\egg\pycha\pie.py to pie.pyc
byte-compiling build\bdist.win-amd64\egg\pycha\scatter.py to scatter.pyc
byte-compiling build\bdist.win-amd64\egg\pycha\stackedbar.py to stackedbar.pyc
byte-compiling build\bdist.win-amd64\egg\pycha\utils.py to utils.pyc
byte-compiling build\bdist.win-amd64\egg\pycha\__init__.py to __init__.pyc
creating build\bdist.win-amd64\egg\EGG-INFO
copying pycha.egg-info\PKG-INFO -& build\bdist.win-amd64\egg\EGG-INFO
copying pycha.egg-info\SOURCES.txt -& build\bdist.win-amd64\egg\EGG-INFO
copying pycha.egg-info\dependency_links.txt -& build\bdist.win-amd64\egg\EGG-INFO
copying pycha.egg-info\entry_points.txt -& build\bdist.win-amd64\egg\EGG-INFO
copying pycha.egg-info\top_level.txt -& build\bdist.win-amd64\egg\EGG-INFO
copying pycha.egg-info\zip-safe -& build\bdist.win-amd64\egg\EGG-INFO
creating dist
creating 'dist\pycha-0.6.0-py2.7.egg' and adding 'build\bdist.win-amd64\egg' to it
removing 'build\bdist.win-amd64\egg' (and everything under it)
Processing pycha-0.6.0-py2.7.egg
Copying pycha-0.6.0-py2.7.egg to d:\tmp\dev_install_root\python27_x64\lib\site-packages
Adding pycha 0.6.0 to easy-install.pth file
Installing chavier-script.pyw script to D:\tmp\dev_install_root\Python27_x64\Scripts
Installing chavier.exe script to D:\tmp\dev_install_root\Python27_x64\Scripts
Installing chavier.exe.manifest script to D:\tmp\dev_install_root\Python27_x64\Scripts
Installed d:\tmp\dev_install_root\python27_x64\lib\site-packages\pycha-0.6.0-py2.7.egg
Processing dependencies for pycha==0.6.0
Finished processing dependencies for pycha==0.6.0 使用pycha都安装好了，就可以去试试效果了。参考：去写代码。后来还是从：找到：试了试代码：#!/usr/bin/python
# -*- coding: utf-8 -*-
【记录】折腾Python中的一个绘制图表的模块：pycha
https://www.crifan.com/python_making_charts_module_pycha
admin at crifan dot com
import pycha.
def pycharDemo(output):
surface = cairo.ImageSurface(cairo.FORMAT_ARGB32, 800, 800)
dataSet = [(line[0], [[0, line[1]]]) for line in lines]
options = {
'ticks': [dict(v=i, label=d[0]) for i, d in enumerate(lines)],
'legend': {
'hide': True,
'title': 'Pie Chart',
chart = pycha.pie.PieChart(surface, options)
chart.addDataset(dataSet)
chart.render()
surface.write_to_png(output)
if __name__ == '__main__':
if len(sys.argv) & 1:
output = sys.argv[1]
output = 'piechart.png'
pycharDemo(output);运行结果竟然又是缺少一个lines：D:\tmp\tmp_dev_root\python\tutorial_summary\pycha_demo&pycha_demo.py
Traceback (most recent call last):
File &D:\tmp\tmp_dev_root\python\tutorial_summary\pycha_demo\pycha_demo.py&, line 17, in &module&
ImportError: No module named lines所以，还得再去安装lines：然后后来就是去把相关示例代码都下载下来了：此处，运行对应代码，会生成对应的piechart.png，效果和开始官网的例子，一模一样：再去试试其他的：barchart.py会生成两个： errorbarchart.py也是生成两个： interval.py的效果： linechart.py的效果： pychadownloads.py的效果： scatterchart.py的效果： stackedbarchart.py效果： svg.py会生成对应的testsvg.svg，效果是： test.py的效果，三个： 总之，效果相当的不错。 总结pycha，安装起来，稍微有点麻烦，但是效果那是相当地不错哇。转载请注明： & 与本文相关的文章
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