import requests
import pygal
from pygal.style import LightColorizedStyle as LCS, LightStyle as LS
# 執(zhí)行API調(diào)用并存儲(chǔ)響應(yīng)
url = 'https://api.github.com/search/repositories?q=language:python&sort=stars'
r = requests.get(url)
print("Status code:", r.status_code)
# 將API響應(yīng)存儲(chǔ)在一個(gè)變量中
response_dict = r.json()
print("Total repositories:", response_dict['total_count'])
# 探索倉(cāng)庫(kù)信息
response_dicts = response_dict['items']
# print("Repositories returned:", len(response_dicts))
names, stars = [], []
for response_dict in response_dicts:
    names.append(response_dict['name'])
    stars.append(response_dict['stargazers_count'])
# 可視化
my_style = LS('#336699', base_style=LCS)  #主要是這句的參數(shù)不對(duì)
chart = pygal.Bar(style=my_style, x_label_rotation=45,show_legend=False)
chart.title = 'Most-Starred Python Projects on GitHub'
chart.x_labels = names
chart.add('', stars)
chart.render_to_file('python_repos.svg')

報(bào)錯(cuò)信息如圖

解決方案

可能是因?yàn)榘?jí)了，參數(shù)不一樣了，所以要輸入正確的參數(shù)

my_style = LS(colors=('#336699',), base_style=LCS)

解決思路

在pycharm中ctrl+鼠標(biāo)左鍵（或者ctrl+B）可以快速定位到函數(shù)，通過(guò)此方式點(diǎn)擊LS，跳轉(zhuǎn)到了pygal包中的該類，可以看到一些屬性如下

class LightStyle(Style):
   """A light style"""
   background = 'white'
   plot_background = 'rgba(0, 0, 255, 0.1)'
   foreground = 'rgba(0, 0, 0, 0.7)'
   foreground_strong = 'rgba(0, 0, 0, 0.9)'
   foreground_subtle = 'rgba(0, 0, 0, 0.5)'
   colors = ('#242424', '#9f6767', '#92ac68',
             '#d0d293', '#9aacc3', '#bb77a4',
             '#77bbb5', '#777777')

再通過(guò)此方式點(diǎn)擊Style，可以跳轉(zhuǎn)到Style對(duì)象，也可以看到colors屬性

猜測(cè)要像base_style=LCS那樣輸入colors=‘#336699’，然而嘗試后還是不行

再看第1和第2點(diǎn)，看到colors是一個(gè)元組，猜測(cè)不能只輸入一個(gè)值，是要輸入一個(gè)元組，所以修改成colors=(’#336699’,)，運(yùn)行后可以了

特此記錄下不專業(yè)的排查解決思路

pygal工具提示失效

初學(xué)python，跟著《Python編程從入門到實(shí)踐》按照書上17章的示例

import requests
import pygal
from pygal.style import LightColorizedStyle as LCS, LightenStyle as LS
# 執(zhí)行API調(diào)用并存儲(chǔ)響應(yīng)， status_code=200表示成功
url = 'https://api.github.com/search/repositories?q=language:python&sort=stars'
r = requests.get(url)
print("Status code:", r.status_code)
# 將API響應(yīng)存儲(chǔ)在一個(gè)變量中
response_dict = r.json()
# 處理結(jié)果
# print(response_dict.keys())
print("Total repositories:", response_dict['total_count'])
# 探索有關(guān)倉(cāng)庫(kù)的信息
repo_dicts = response_dict['items']
# print("Repositories returned:", len(repo_dicts))
names, stars = [], []
for repo_dict in repo_dicts:
    names.append(repo_dict['name'])
    stars.append(repo_dict['stargazers_count'])
# 可視化,x_label_rotation意為標(biāo)簽繞x軸旋轉(zhuǎn)45°，show_legend=False意為隱藏圖例
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.label_font_size = 14
my_config.major_label_font_size = 18
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-Starred python Projects on GitHub'
chart.x_labels = names
chart.add('', stars)
chart.render_to_file('python_repos.svg')

工具使用如下：