[玩转树莓派]树莓派编译安装python3.8.5_apt-get安装python3.8.5

1.更新资源

pi@raspberrypi:~ $ sudo apt-get update
pi@raspberrypi:~ $ sudo apt-get upgrade
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2.安装python依赖环境

pi@raspberrypi:~ $ sudo apt-get install build-essential libsqlite3-dev sqlite3 bzip2 libbz2-dev
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3.下载python3.8.5版本源码并解压

你也可以 下载其他的python版本

pi@raspberrypi:~ $ wget https://www.python.org/ftp/python/3.8.5/Python-3.8.5.tgz 
pi@raspberrypi:~ $ tar zxvf Python-3.8.5.tgz 
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4.编译安装python

pi@raspberrypi:~ $ cd Python-3.8.5/
pi@raspberrypi:~/Python-3.8.5 $ sudo ./configure 
pi@raspberrypi:~/Python-3.8.5 $ sudo make
pi@raspberrypi:~/Python-3.8.5 $ sudo make install
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5.检查安装

# 安装了python3.8.5
pi@raspberrypi:~ $ python3
Python 3.8.5 (default, Sep 14 2020, 11:24:11) 
[GCC 6.3.0 20170516] on linux
Type "help", "copyright", "credits" or "license" for more information.

# 之前卸载了python2.7
pi@raspberrypi:~ $ python
bash: python: 未找到命令
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6.替换命令别名

vi .bashrc
# 修改别名
alias python='python3'

# 保存退出，用source让配置生效
source .bashrc
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现在可以用python命令咯，打开默认是python3.8.5