Matplotlib安装失败求助：执行pip安装命令时触发异常

Hey Vijay, looks like you’re hitting a roadblock installing matplotlib with Python 2.7. The core issue here is that Python 2.7 reached end-of-life in 2020, and all modern versions of matplotlib (3.0+) no longer support it. Your pip command is trying to pull the latest incompatible release, which is causing the error.

Here are two actionable solutions to get this working:

Option 1: Install a Python 2.7-compatible matplotlib version #

The last matplotlib release that supports Python 2.7 is 2.2.5. Run this specific command to install it:

python -mpip install matplotlib==2.2.5

If you run into system dependency errors (common on Ubuntu/Debian), first install these required packages:

sudo apt-get install libfreetype6-dev libpng-dev python-dev

Then retry the matplotlib install command.

Option 2: Upgrade to Python 3 (Highly Recommended) #

Since Python 2.7 is no longer maintained, switching to Python 3 is the best long-term fix. All recent matplotlib versions work seamlessly with Python 3.6+. To install matplotlib on Python 3:

python3 -mpip install matplotlib

If you don’t have Python 3 installed yet, grab it with:

sudo apt-get install python3 python3-pip

Quick note about your pip version #

Your current pip is for Python 2.7 and likely outdated. If you still need to use Python 2.7, upgrade pip first to handle older package versions properly:

python -mpip install --upgrade pip==20.3.4

This is the final pip release that supports Python 2.7.

Hope this resolves your issue!

内容的提问来源于stack exchange，提问作者Vijay Sengar