How to Fix Matplotlib Title Encoding Errors in Python

1. Introduction

Hello everyone, I’m PiPi. In a Python community chat I was asked about a Matplotlib visualization problem where the chart title appears as garbled characters. The user tried adding encoding='utf-8' but received the error

AttributeError: Text.set() got an unexpected keyword argument 'encoding'

.

2. Solution

The issue is common and can be resolved by setting the appropriate font and disabling the Unicode minus sign handling in Matplotlib. The following code implements the fix:

import matplotlib.pyplot as plt
plt.rcParams["font.sans-serif"] = ["SimHei"]  # set font to SimHei for Chinese characters
plt.rcParams["axes.unicode_minus"] = False  # fix minus sign garbling

Applying these settings successfully displayed the title without garbling.

3. Summary

This article demonstrated how to troubleshoot a Matplotlib title encoding problem, provided the exact configuration changes needed, and offered practical advice for asking technical questions in community chats, such as sharing minimal reproducible code and screenshots.