我试图使用'sudo apt-get install python3.7'在我的Ubuntu虚拟机中安装python 3.7。但是，我得到以下输出：-
Building dependency tree
Reading state information... Done
python3.7 is already the newest version (3.7.4-2~16.04.york1).
You might want to run 'apt-get -f install' to correct these:
The following packages have unmet dependencies:
libpython3.7 : Depends: libpython3.7-stdlib (= 3.7.4-2~16.04.york1) but 3.7.4-1+xenial2 is to be installed
libpython3.7-dev : Depends: libpython3.7-stdlib (= 3.7.4-2~16.04.york1) but 3.7.4-1+xenial2 is to be installed
libpython3.7-stdlib : Depends: libpython3.7-minimal (= 3.7.4-1+xenial2) but 3.7.4-2~16.04.york1 is to be installed
python3.7 : Depends: libpython3.7-stdlib (= 3.7.4-2~16.04.york1) but 3.7.4-1+xenial2 is to be installed
E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).
[之后，我尝试按照上面的输出中的建议执行'apt-get -f install'，但是随后得到了以下内容：-
Reading package lists... Done
Building dependency tree
Reading state information... Done
Correcting dependencies... Done
The following additional packages will be installed:
libpython3.7-stdlib
The following packages will be upgraded:
libpython3.7-stdlib
1 upgraded, 0 newly installed, 0 to remove and 209 not upgraded.
4 not fully installed or removed.
Need to get 0 B/1,756 kB of archives.
After this operation, 66.6 kB disk space will be freed.
Do you want to continue? [Y/n] y
(Reading database ... 189831 files and directories currently installed.)
Preparing to unpack .../libpython3.7-stdlib_3.7.4-2~16.04.york1_amd64.deb ...
Unpacking libpython3.7-stdlib:amd64 (3.7.4-2~16.04.york1) over (3.7.4-1+xenial2) ...
dpkg: error processing archive /var/cache/apt/archives/libpython3.7-stdlib_3.7.4-2~16.04.york1_amd64.deb (--unpack):
trying to overwrite '/usr/lib/python3.7/distutils/__init__.py', which is also in package python3.7-distutils 3.7.4-1+xenial2
dpkg-deb: error: subprocess paste was killed by signal (Broken pipe)
Errors were encountered while processing:
/var/cache/apt/archives/libpython3.7-stdlib_3.7.4-2~16.04.york1_amd64.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)
更新：
即使错误表明python3.7已经存在，当我执行python时，也会得到以下信息：
Python 2.7.12 (default, Oct 8 2019, 14:14:10)
[GCC 5.4.0 20160609] on linux2
Type "help", "copyright", "credits" or "license" for more information.
以及下面当我运行'python3'时：-
Python 3.5.2 (default, Oct 8 2019, 13:06:37)
[GCC 5.4.0 20160609] on linux
Type "help", "copyright", "credits" or "license" for more information.
我要做的就是安装python 3.7。
有人可以帮助我解决此错误吗？
我在您的日志中看到以下内容
python3.7 is already the newest version (3.7.4-2~16.04.york1).
它说已经安装了python3.7。
您可以尝试命令行中的python或python3，明白它的意思吗？如果您看到类似下面的内容，则说明它已成功安装
Python 3.7.3 (v3.7.3 Oct 3 2017, 00:32:08)
[GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on XXX
Type "help", "copyright", "credits" or "license" for more information.