3.使用API

coding: utf-8

import requests
import pygal
from pygal.style import LightColorizedStyle as LCS, LightenStyle as LS

执行API调用并存储响应

url = ‘https://api.github.com/search/repositories?q=language:python&sort=stars’
r = requests.get(url)
print("Status code: ", r.status_code)

将API响应存储在一个变量中

response_dict = r.json()
print("Total repositories: ", response_dict[‘total_count’])

研究有关仓库信息

repo_dicts = response_dict[‘items’]
print("Repositories returned: ", len(repo_dicts))

names, plot_dicts = [], []
for repo_dict in repo_dicts:
names.append(repo_dict[‘name’])

plot_dict = {
    'value': repo_dict['stargazers_count'],
    'label': str(repo_dict['description']),
    'xlink': repo_dict['html_url'],
}
plot_dicts.append(plot_dict)

可视化

my_style = LS(’#333366’, base_style=LCS)
my_style.title_font_size = 24
my_style.label_font_size = 24
my_style.major_label_font_size = 18

my_config = pygal.Config()
my_config.x_label_rotation = 45
my_config.show_legend = False
my_config.truncate_label = 15
my_config.show_y_guides = False
my_config.width = 1000

chart = pygal.Bar(my_config, style=my_style)
chart.title = ‘Most-Star Python Projects on Github’
chart.x_labels = names

chart.add(’’, plot_dicts)
chart.render_to_file(‘python_repos.svg’)