用python爬github上星级排名前列的项目报错AttributeError: ‘NoneType’ object has no attribute ‘decode’

代
码：

1. import requests
2. import pygal
3. from pygal.style import LightenStyle as ls,LightColorizedStyle as lcs
4. #执行api调用并存储相应
5. url = ‘https://api.github.com/search/repositories?q=language:python&sort=stars’
6. r = requests.get(url)
7. print(r.status_code)
8. #响应存储在变量中
9. response_dic = r.json()
10. #print(response_dic.keys())
11. print(“total:”+str(response_dic[“total_count”]))
13. #respon_dic :所有仓库，是一个列表，有很多字典
14. respon_dics = response_dic[“items”]
15. print(“dics:”+str(len(respon_dics)))
16. “””找出第一个字典
17. respon_dic = respon_dics[0]
18. print(“\nkeys:”+str(len(respon_dic)))
19. for key in sorted(respon_dic.keys()):
20. print(key)”””
22. names,plot_dicts = [],[]
23. for respon_dic in respon_dics:
24. names.append(respon_dic[‘name’])
25. plot_dict = {
26. ‘value’:respon_dic[‘stargazers_count’],
27. ‘label’:respon_dic[‘description’]
28. }
29. plot_dicts.append(plot_dict)
30. #plot_dicts.append(respon_dic['stargazers_count'])
31. #可视化
32. my_style= ls(‘#333366′,base_style = lcs)
34. my_config = pygal.Config()
35. my_config.x_label_rotation = 45
36. my_config.show_legend = False
37. my_config.title_font_size = 24
38. my_config.label_font_size = 14
39. my_config.major_label_font_size = 18
40. my_config.truncate_label = 15
41. my_config.show_y_guides = False
42. my_config.width = 1000
44. chart = pygal.Bar(my_config,style = my_style)
45. chart.title = “most stared python projects on github”
46. chart.x_labels= names
48. chart.add(”,plot_dicts)
49. chart.render_to_file(“python_respon.svg”)

报错：

Traceback (most recent call last):
File “F:\workspace\python\api\python_request.py”, line 62, in <module>
chart.render_to_file(“python_respon.svg”)
File “C:\Users\zawdcxs\AppData\Local\Programs\Python\Python36\lib\site-packages\pygal\graph\public.py”, line 114, in render_to_file
f.write(self.render(is_unicode=True, **kwargs))
File “C:\Users\zawdcxs\AppData\Local\Programs\Python\Python36\lib\site-packages\pygal\graph\public.py”, line 52, in render
self.setup(**kwargs)
File “C:\Users\zawdcxs\AppData\Local\Programs\Python\Python36\lib\site-packages\pygal\graph\base.py”, line 217, in setup
self._draw()
File “C:\Users\zawdcxs\AppData\Local\Programs\Python\Python36\lib\site-packages\pygal\graph\graph.py”, line 933, in _draw
self._plot()
File “C:\Users\zawdcxs\AppData\Local\Programs\Python\Python36\lib\site-packages\pygal\graph\bar.py”, line 146, in _plot
self.bar(serie)
File “C:\Users\zawdcxs\AppData\Local\Programs\Python\Python36\lib\site-packages\pygal\graph\bar.py”, line 116, in bar
metadata)
File “C:\Users\zawdcxs\AppData\Local\Programs\Python\Python36\lib\site-packages\pygal\util.py”, line 233, in decorate
metadata['label'])
File “C:\Users\zawdcxs\AppData\Local\Programs\Python\Python36\lib\site-packages\pygal\_compat.py”, line 61, in to_unicode
return string.decode(‘utf-8′)
AttributeError: ‘NoneType’ object has no attribute ‘decode’
仔细校对和书上的对比过都打的一样了，还是报错。。

最后看到关键3行：

metadata['label'])

return string.decode(‘utf-8′)
AttributeError: ‘NoneType’ object has no attribute ‘decode’

”空类型“对象没有属性“decode”

应该是label属性 期望是个字符串？

for respon_dic in respon_dics:
names.append(respon_dic['name'])
plot_dict = {
‘value’:respon_dic['stargazers_count'],
‘label’:respon_dic['description']
}
plot_dicts.append(plot_dict)
#plot_dicts.append(respon_dic['stargazers_count'])
里面’label’:respon_dic['description']改为’label’:str(respon_dic['description'])

搞定。

效果：

from:https://blog.csdn.net/qq_15514565/article/details/77688676