AttributeError： 'NoneType'オブジェクトに 'デコード'属性がありません

Question

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['owner']['html_url'], 
     } 
    plot_dicts.append(plot_dict) 

my_style = LS('#333366', base_style=LCS) 
chart = pygal.Bar(style=my_style, x_label_rotation=45, show_legend=False) 
chart.title = 'Most-Stared Python Project On Github' 
chart.x_labels = names 
chart.add('', plot_dicts) 

chart.render_to_file('new_repos.svg') 

*これを実行するとエラーが発生します。

Traceback (most recent call last): 
    File "new_repos.py", line 54, in <module> 
    chart.render_to_file('new_repos.svg') 
    File "C:\Users\Cao Kangkang\AppData\Roaming\Python\Python36\site-packages\pygal\graph\public.py", line 114, in render_to_file 
    f.write(self.render(is_unicode=True, **kwargs)) 
    File "C:\Users\Cao Kangkang\AppData\Roaming\Python\Python36\site-packages\pygal\graph\public.py", line 52, in render 
    self.setup(**kwargs) 
    File "C:\Users\Cao Kangkang\AppData\Roaming\Python\Python36\site-packages\pygal\graph\base.py", line 217, in setup 
    self._draw() 
    File "C:\Users\Cao Kangkang\AppData\Roaming\Python\Python36\site-packages\pygal\graph\graph.py", line 933, in _draw 
    self._plot() 
    File "C:\Users\Cao Kangkang\AppData\Roaming\Python\Python36\site-packages\pygal\graph\bar.py", line 146, in _plot 
    self.bar(serie) 
    File "C:\Users\Cao Kangkang\AppData\Roaming\Python\Python36\site-packages\pygal\graph\bar.py", line 116, in bar 
    metadata) 
    File "C:\Users\Cao Kangkang\AppData\Roaming\Python\Python36\site-packages\pygal\util.py", line 234, in decorate 
    metadata['label']) 
    File "C:\Users\Cao Kangkang\AppData\Roaming\Python\Python36\site-packages\pygal\_compat.py", line 62, in to_unicode 
    return string.decode('utf-8') 
AttributeError: 'NoneType' object has no attribute 'decode' 

*コードの一部をこれに変更すると、エラーは消えますが、説明は無視されます。

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['owner']['html_url'], 
     } 
    plot_dicts.append(plot_dict) 

*私はこの問題を手伝ってもらえますか？

Answer 1

'label':str(repo_dict['description']) 

トライ列str（）上記のように、あなたが前に得たデータは、「説明」はstorgedという値の型をclarifedしていないようです。