树莓派编译安装python3.6

一、更新树莓派系统

$ sudo  apt-get  update
$ sudo  apt-get  upgrade

二、安装python依赖环境

$ sudo apt-get install build-essential libsqlite3-dev sqlite3 bzip2 libbz2-dev

三、下载python3.6版本源码并解压

$ wget https://www.python.org/ftp/python/3.6.1/Python-3.6.1.tgz
$ tar zxvf Python-3.6.1.tgz

四、编译安装

$ cd Python-3.6.1
$ sudo ./configure
$ sudo make
$ sudo make install

五、检查安装

$ ls -al /usr/local/bin/python*
lrwxrwxrwx 1 root staff       9 May 15 14:53 /usr/local/bin/python3 -> python3.6
-rwxr-xr-x 2 root staff 9840168 May 15 14:51 /usr/local/bin/python3.6
lrwxrwxrwx 1 root staff      17 May 15 14:53 /usr/local/bin/python3.6-config -> python3.6m-config
-rwxr-xr-x 2 root staff 9840168 May 15 14:51 /usr/local/bin/python3.6m
-rwxr-xr-x 1 root staff    3103 May 15 14:53 /usr/local/bin/python3.6m-config
lrwxrwxrwx 1 root staff      16 May 15 14:53 /usr/local/bin/python3-config -> python3.6-config

小知识点

1. usr 是指 Unix System Resource,而不是User;
2. /usr/bin:系统预装的可执行程序,会随着系统升级而改变;
3. /usr/local/bin:用户放置自己的可执行程序的地方,推荐放在这里,不会被系统升级而覆盖同名文件;
如果两个目录下有相同的可执行程序,谁优先执行受到PATH环境变量的影响,比如我的一台服务器的PATH变量为:
$ echo $PATH 
/usr/lib64/qt-3.3/bin:/usr/local/bin:/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/sbin:/home/dean/bin 
这里/usr/local/bin优先于/usr/bin.

参考资料:
https://www.aliyun.com/jiaocheng/118743.html
https://blog.csdn.net/lina_acm/article/details/78224656

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