Python练习遇UnicodeEncodeError：charmap无法编码◄字符求助

运行练习代码时触发UnicodeEncodeError错误，具体错误信息：

Exception has occurred: UnicodeEncodeError
'charmap' codec can't encode character '\u25c4' in position 276398: character maps to
文件"C:\Users\Faizan\My Drive\Python\Practice_files\dice_visual.py"第30行：
offline.plot({'data': data, 'layout': my_layout}, filename='d6_d6.html')

完整代码如下：

from plotly.graph_objs import Bar, Layout
from plotly import offline

from die import Die

#Create two D6 dice
die_1 = Die()
die_2 = Die()

#Make some rolls, and store results in a list
results = []
for roll_num in range(1000):
    result = die_1.roll() + die_2.roll()
    results.append(result)

#Analyze the results
frequencies = []
max_result = die_1.num_sides + die_2.num_sides
for value in range(2, max_result+1):
    frequency  = results.count(value)
    frequencies.append(frequency)

#Visulaize the results
x_values = list(range(2, max_result+1))
data = [Bar(x=x_values, y=frequencies)]

x_axis_config = {'title': 'Result', 'dtick':1}
y_axis_config = {'title': 'Frequency of Result'}
my_layout = Layout(title='Result of rolling two D6 dice 1000 times', xaxis=x_axis_config, yaxis=y_axis_config)
offline.plot({'data': data, 'layout': my_layout}, filename='d6_d6.html')

这个错误是Windows系统默认编码（charmap）无法处理plotly生成的HTML文件中的特殊字符（\u25c4是左指向三角符号）导致的，直接在offline.plot调用中指定UTF-8编码即可解决：

修改第30行代码为：

offline.plot({'data': data, 'layout': my_layout}, filename='d6_d6.html', encoding='utf-8')

原理：UTF-8编码支持所有Unicode字符，指定后plotly会用UTF-8编码写入HTML文件，避免charmap编码的局限性。

若die.py文件存在编码异常，也需确保它保存为UTF-8格式，但从错误位置判断，核心问题出在HTML文件写入环节，优先修改offline.plot的encoding参数即可。

内容的提问来源于stack exchange，提问作者faizan masood