第十七章 使用API

17.1使用web API(有待修改)

import requests

url = 'https://api.github.com/search/repositories?q=language:python&sort=stars'
r = requests.get(url)
print(r.status_code)

response_dict = r.json()

17.2使用Pygal可视化仓库

import os
import pygal
import json
from pygal.style import LightColorizedStyle as LCS,LightenStyle as LS
path = "/Users/anchror/Documents/python/20200305"   
os.chdir(path)

file_name='repositories.json'
with open(file_name) as f:
	requests_dict=json.load(f)


repo_dicts = requests_dict['items']
names, stars = [], []
for repo_dict in repo_dicts:
	names.append(repo_dict['name'])
	stars.append(repo_dict['stargazers_count'])

my_style = LS('#333366', base_style=LCS)
chart = pygal.Bar(style=my_style, x_label_rotation=45, show_legend=False)
chart.title = 'most-starred python projects'
chart.x_labels = names

chart.add('', stars)
chart.render_to_file('python_repos.svg')

17.3改进Pygal图表

import os
import pygal
import json
from pygal.style import LightColorizedStyle as LCS,LightenStyle as LS
path = "/Users/anchror/Documents/python/20200305"   
os.chdir(path)

file_name='repositories.json'
with open(file_name) as f:
	requests_dict=json.load(f)


repo_dicts = requests_dict['items']
names, plot_dicts = [], []
for repo_dict in repo_dicts:
	names.append(repo_dict['name'])
	plot_dict={
	'value':repo_dict['stargazers_count'],
	'label':repo_dict['description'],
	'xlink':repo_dict['html_url'],
	}
	plot_dicts.append(plot_dict)

my_style = LS('#333366', base_style=LCS)
my_config = pygal.Config()
my_config.x_label_rotation = 45
my_config.show_legend = False 
my_config.title_font_size = 24
my_config.major_label_font_size =18 # 坐标字体
my_config.truncate_label =15 # 名称缩短为15个字符
my_config.show_y_guides = Fales # 隐藏X轴
my_config.width = 1000
# chart = pygal.Bar(style=my_style, x_label_rotation=45, show_legend=False)
chart = pygal.Bar(my_config, style=my_style)
chart.title = 'most-starred python projects'
chart.x_labels = names

chart.add('', plot_dicts)
chart.render_to_file('python_repos_full.svg')