Ubuntu 安装python3.8.0b4

使用命令：

aptinstallpython3.8

查看python的软连接：

>>>ls-l/usr/bin|greppython

-rwxr-xr-x1rootroot1056Apr162018dh_python2
lrwxrwxrwx1rootroot23Oct801:39pdb2.7->../lib/python2.7/pdb.py
lrwxrwxrwx1rootroot23Oct720:59pdb3.6->../lib/python3.6/pdb.py
lrwxrwxrwx1rootroot23Oct2900:14pdb3.8->../lib/python3.8/pdb.py
lrwxrwxrwx1rootroot31Oct252018py3versions->../share/python3/py3versions.py
lrwxrwxrwx1rootroot9Apr162018python->python2.7
lrwxrwxrwx1rootroot9Apr162018python2->python2.7
-rwxr-xr-x1rootroot3641704Oct801:39python2.7
lrwxrwxrwx1rootroot33Oct801:39python2.7-config->x86_64-linux-gnu-python2.7-config
lrwxrwxrwx1rootroot16Apr162018python2-config->python2.7-config
lrwxrwxrwx1rootroot9Oct252018python3->python3.6
-rwxr-xr-x2rootroot4526456Oct720:59python3.6
-rwxr-xr-x2rootroot4526456Oct720:59python3.6m
-rwxr-xr-x1rootroot5203488Oct2900:14python3.8
-rwxr-xr-x1rootroot1018Oct292017python3-jsondiff
-rwxr-xr-x1rootroot3661Oct292017python3-jsonpatch
-rwxr-xr-x1rootroot1342May22016python3-jsonpointer
-rwxr-xr-x1rootroot398Nov162017python3-jsonschema
lrwxrwxrwx1rootroot10Oct252018python3m->python3.6m
lrwxrwxrwx1rootroot16Apr162018python-config->python2.7-config
lrwxrwxrwx1rootroot29Apr162018pyversions->../share/python/pyversions.py
-rwxr-xr-x1rootroot2971Oct801:39x86_64-linux-gnu-python2.7-config
lrwxrwxrwx1rootroot33Apr162018x86_64-linux-gnu-python-config->x86_64-linux-gnu-python2.7-config

删除python的软链接，指向python3.7：

rm/usr/bin/python
ln-s/usr/bin/python3.7/usr/bin/python

参考：https://www.jianshu.com/p/fe0b278b8916

（编辑：安卓应用网）

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