UnicodeEncodeError

先按原文贴出问题：
“UnicodeEncodeError: 'gbk' codec can't encode character '\U0001f917' in position 3664416: illegal multibyte sequence”
查遍了网上的方法，不得其解，可能是我碰到的这个问题的背景与网上解决方案的背景有所不同。这个问题我是在学习Python API用”plotly“可视化"Github"上的”repositories"的过程中碰到的。程序代码如下：

import requests
from plotly.graph_objs import Bar
from plotly import offline

url = 'https://api.github.com/search/repositories?q=language:python&sort=stars'
headers = {'Accept': 'application/vnd.github.v3+json'}
r = resquests.get(url, headers=headers)
print(f"Status code: {r.status_code}")

response_dict = r.json()
repo_dicts = response_dict['items']

repo_links, stars, labels = [], [], []
for repo_dict in repo_dicts:
    repo_name = repo_dict['name']
    repo_url = repo_dict['html_url']
    repo_link = f"<a href='{repo_url}'>{repo_name}</a>"
    repo_links.append(repo_link)

    stars.append(repo_dict['stargazers_count'])
     
    owner = repo_dict['owner']['login']
    description = repo_dict['description']
    label = f"{owner}<br />{description}"
    labels.append(label)

data = [{
    'type': 'bar',
    'x': repo_links,
    'y': stars,
    'hovertext': labels,
    'marker': {
           'color': 'rgb(60,100,150)',
           'line': {'width': 1.5, 'color': 'rgb(25,25,25)'},
    },
    'opacity': 0.6,
}]
my_layout = {
     'title': 'Most-Starred Python Projects on Github',
     'titlefont': {'size': 18, 'color': 'rgb(100,0,100)'},
     'xaxis': {
         'title': 'Repository',
         'titlefont': {'size': 14, 'color': 'rgb(100,0,100)'},
         'tickfont': {'size': 12, 'color': 'rgb(100,0,100)'},
     },
     'yaxis': {
         'title': 'Stars',
         'titlefont': {'size': 14, 'color': 'rgb(100,0,100)'},
         'tickfont': {'size': 12, 'color': 'rgb(100,0,100)'},
     },
}

fig = {'data': data, 'layout': my_layou}
offline.plot(fig, filename='python_repos_visual.html')

运行结果：
PS C:\Users......
Status code: 200
Traceback (most recent call last):
File "c:/Users......\python_repos_visual.py", line 60, in
offline.plot(fig, filename='python_repos_visual.html')
File "C:\Users......\Anaconda3\lib\site-packages\plotly\offline\offline.py", line 597, in plot
auto_open=auto_open,
File "C:\Users......\Anaconda3\lib\site-packages\plotly\io_html.py", line 542, in write_html
path.write_text(html_str)
File "C:\Users......\Anaconda3\lib\pathlib.py", line 1198, in write_text
return f.write(data)
UnicodeEncodeError: 'gbk' codec can't encode character '\U0001f917' in position 3664416: illegal multibyte sequence

直觉上判断，可能是几处HTML标记导致报错，于是对部分代码作修改：

# repo_links, stars, labels = [], [], [] 
# 修改为：
repo_names, stars, labels = [], [], []

# repo_url = repo_dict['html_url']
# repo_link = f"<a href='{repo_url}'>{repo_name}</a>"
# repo_links.append(repo_link)
# 修改为：
repo_names.append(repo_dict['name'])

# label = f"{owner}<br />{description}"
# 修改为：
label = f"{owner}"

#  'x': repo_links,
# 修改为：
‘x’: repo_names,

则程序可以正常运行：

修改后的代码失去了可单击的主页链接、以及鼠标放置条形图上显示完整更多信息的功能。

用plotly5.2.1运行代码没有问题，检查一下plotly版本，试试卸载重新安装一下。

offline.plot(fig, filename='python_repos_visual.html')中设置下读取html文件的编码为utf-8

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