blocks|key|527762|text|警告:不建议将默认Python从Ubuntu中删除，这可能会导致GDM(图形显示管理器，提供图形登录功能)失败。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|527763|要完全卸载Python2.x.x，一切都取决于它。使用以下命令：|527764|sudo+apt+purge+python2.x-minimal|code-block|syntax|javascript|527765|因为仍然有很多包依赖于Python2.x.x。因此，在让它继续之前，您应该仔细查看apt想要删除的包。|527766|谢谢，我希望这对你有帮助。|527767|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|P|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|Q|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|R|8|@]|9|@]|A|$]]|$1|K|3|L|5|6|7|S|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

caution : It is not recommended to remove the default Python from Ubuntu, it may cause GDM(Graphical Display Manager, that provide graphical login capabilities) failed.

To completely uninstall Python2.x.x and everything depends on it. use this command:

<pre><code>sudo apt purge python2.x-minimal
</code></pre>

As there are still a lot of packages that depend on Python2.x.x. So you should have a close look at the packages that apt wants to remove before you let it proceed.

Thanks, I hope it will be helpful for you.

blocks|key|527833|text|我是怎么做的：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|527834|#+Remove+python2
sudo+apt+purge+-y+python2.7-minimal

#+You+already+have+Python3+but+
#+don't+care+about+the+version+
sudo+ln+-s+/usr/bin/python3+/usr/bin/python

#+Same+for+pip
sudo+apt+install+-y+python3-pip
sudo+ln+-s+/usr/bin/pip3+/usr/bin/pip

#+Confirm+the+new+version+of+Python:+3
python+--version|code-block|syntax|javascript|527835|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

How I do:

<pre><code># Remove python2
sudo apt purge -y python2.7-minimal

# You already have Python3 but 
# don't care about the version 
sudo ln -s /usr/bin/python3 /usr/bin/python

# Same for pip
sudo apt install -y python3-pip
sudo ln -s /usr/bin/pip3 /usr/bin/pip

# Confirm the new version of Python: 3
python --version
</code></pre>

blocks|key|527807|text|试着跟随查看python的所有实例|type|unstyled|depth|inlineStyleRanges|entityRanges|data|527808|whereis+python
which+python|code-block|syntax|javascript|527809|然后使用以下方法删除所有实例：|527810|sudo+apt+autoremove+python|527811|重复应该这样做的sudo+apt自动删除python(针对所有版本)，然后安装Anaconda，如果需要重新安装它，可以任意管理Pythons。|527812|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|S|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

try following to see all instances of python

<pre><code>whereis python
which python
</code></pre>

Then remove all instances using:

<pre><code>sudo apt autoremove python
</code></pre>

repeat sudo apt autoremove python(for all versions)
that should do it, then install Anaconda and manage Pythons however you like if you need to reinstall it.

blocks|key|1864523|text|sudo+apt+purge+python2.7-minimal|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1864524|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>sudo apt purge python2.7-minimal
</code></pre>

blocks|key|1864597|text|有时，您需要首先更新apt回购列表。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1864598|sudo+apt-get+update
sudo+apt+purge+python2.7-minimal|code-block|syntax|javascript|1864599|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Sometimes you need to first update the apt repo list.
<pre><code>sudo apt-get update
sudo apt purge python2.7-minimal
</code></pre>

blocks|key|527891|text|这就是我在清除所有python版本并只重新安装3.6之后所拥有的。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|527892|root@esp32:/#+python
Python+3.6.0b2+(default,+Oct+11+2016,+05:27:10)+
[GCC+6.2.0+20161005]+on+linux
Type+"help",+"copyright",+"credits"+or+"license"+for+more+information.
>>>+
root@esp32:/#+python3
Python+3.8.0+(default,+Dec+15+2019,+14:19:02)+
[GCC+6.2.0+20161005]+on+linux
Type+"help",+"copyright",+"credits"+or+"license"+for+more+information.|code-block|syntax|javascript|527893|另外，pip和pip3命令完全是f的：|527894|root@esp32:/#+pip
Traceback+(most+recent+call+last):
++File+"/usr/local/bin/pip",+line+7,+in+<module>
++++from+pip._internal.cli.main+import+main
++File+"/usr/local/lib/python3.5/dist-packages/pip/_internal/cli/main.py",+line+60
++++sys.stderr.write(f"ERROR:+{exc}")
+++++++++++++++++++++++++++++++++++%5E
SyntaxError:+invalid+syntax

root@esp32:/#+pip3
Traceback+(most+recent+call+last):
++File+"/usr/local/bin/pip3",+line+7,+in+<module>
++++from+pip._internal.cli.main+import+main
++File+"/usr/local/lib/python3.5/dist-packages/pip/_internal/cli/main.py",+line+60
++++sys.stderr.write(f"ERROR:+{exc}")
+++++++++++++++++++++++++++++++++++%5E
SyntaxError:+invalid+syntax|527895|我是Linux的新手，我只想把Python从2.x升级到3.x，这样Platformio就可以升级了，现在我把一切都搞砸了。|527896|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|S|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

This is what I have after doing purge of all the python versions and reinstalling only 3.6.
<pre><code>root@esp32:/# python
Python 3.6.0b2 (default, Oct 11 2016, 05:27:10) 
[GCC 6.2.0 20161005] on linux
Type &quot;help&quot;, &quot;copyright&quot;, &quot;credits&quot; or &quot;license&quot; for more information.
&gt;&gt;&gt; 
root@esp32:/# python3
Python 3.8.0 (default, Dec 15 2019, 14:19:02) 
[GCC 6.2.0 20161005] on linux
Type &quot;help&quot;, &quot;copyright&quot;, &quot;credits&quot; or &quot;license&quot; for more information.
</code></pre>
Also the pip and pip3 commands are totally f up:
<pre><code>root@esp32:/# pip
Traceback (most recent call last):
 File &quot;/usr/local/bin/pip&quot;, line 7, in &lt;module&gt;
 from pip._internal.cli.main import main
 File &quot;/usr/local/lib/python3.5/dist-packages/pip/_internal/cli/main.py&quot;, line 60
 sys.stderr.write(f&quot;ERROR: {exc}&quot;)
 ^
SyntaxError: invalid syntax

root@esp32:/# pip3
Traceback (most recent call last):
 File &quot;/usr/local/bin/pip3&quot;, line 7, in &lt;module&gt;
 from pip._internal.cli.main import main
 File &quot;/usr/local/lib/python3.5/dist-packages/pip/_internal/cli/main.py&quot;, line 60
 sys.stderr.write(f&quot;ERROR: {exc}&quot;)
 ^
SyntaxError: invalid syntax
</code></pre>
I am totally noob at Linux, I just wanted to update Python from 2.x to 3.x so that Platformio could upgrade and now I messed up everything it seems.

I installed Python 2.7.13 on Ubuntu 16.04 according to <a href="https://tecadmin.net/install-python-2-7-on-ubuntu-and-linuxmint/" rel="noreferrer">this guide</a>, and it became the default version as an alternative to the version 2.7.12. But, I wanted to completely remove Python 2.7.13 and return back to the version 2.7.12 as the default version since the <code>pip</code> command does not work with the following error.
<pre><code>bash: /usr/local/bin/pip: /usr/bin/python: bad interpreter: No such file or directory
</code></pre>
Could you please help me how to completely remove Python 2.7.13 from Ubuntu 16.04? Otherwise, could you please suggest how to fix the above error?

How to completely uninstall python 2.7.13 on Ubuntu 16.04

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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根据，我在Ubuntu16.04上安装了Python2.7.13，它成为了版本2.7.12的默认版本。但是，我希望完全删除Python2.7.13，并将其作为默认版本返回到2.7.12版本，因为pip命令无法处理以下错误。bash: /usr/local/bin/pip: /usr/bin/python: bad interpreter: No such file or directory您能帮我

问如何在Ubuntu 16.04上完全卸载python 2.7.13
EN

回答 6

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问如何在Ubuntu 16.04上完全卸载python 2.7.13EN

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问如何在Ubuntu 16.04上完全卸载python 2.7.13
EN