Ubuntu 19.04でPython 3.6をインストールする方法？
デフォルトでUbuntu 19.04を持つPython 3.7を最近インストールしました。 Python 3.6を使用する複数のプロジェクトで作業する必要があります。
インストールする方法はDisco Dingo？
私は16.04でも機能しようとしました
milano@milano-desktop:~$ Sudo add-apt-repository ppa:jonathonf/python-3.6
...
milano@milano-desktop:~$ Sudo apt-get install python3.6
Reading package lists... Done
Building dependency tree
Reading state information... Done
Note, selecting 'python3.6-2to3' for regex 'python3.6'
Note, selecting 'libpython3.6-stdlib' for regex 'python3.6'
The following packages were automatically installed and are no longer required:
fonts-liberation2 fonts-opensymbol gir1.2-geocodeglib-1.0
gir1.2-gst-plugins-base-1.0 gir1.2-gstreamer-1.0 gir1.2-gudev-1.0
gir1.2-udisks-2.0 grilo-plugins-0.3-base gstreamer1.0-gtk3 guile-2.2-libs
libboost-date-time1.67.0 libboost-filesystem1.67.0 libboost-iostreams1.67.0
libboost-locale1.67.0 libcdr-0.1-1 libclucene-contribs1v5 libclucene-core1v5
libcmis-0.5-5v5 libcolamd2 libcurl4 libdazzle-1.0-0 libe-book-0.1-1 libeot0
libepubgen-0.1-1 libetonyek-0.1-1 libevent-2.1-6 libfreerdp-client2-2
libfreerdp2-2 libgc1c2 libgee-0.8-2 libgom-1.0-0 libgpgmepp6 libgpod-common
libgpod4 liblangtag-common liblangtag1 liblirc-client0 liblua5.3-0
libmediaart-2.0-0 libminiupnpc17 libmspub-0.1-1 libodfgen-0.1-1
liborcus-0.14-0 libqqwing2v5 libraw19 librevenge-0.0-0 libsgutils2-2
libsuitesparseconfig5 libvncclient1 libwinpr2-2 libxmlsec1 libxmlsec1-nss
lp-solve media-player-info python3-mako python3-markupsafe syslinux
syslinux-common syslinux-legacy usb-creator-common
Use 'Sudo apt autoremove' to remove them.
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
milano@milano-desktop:~$ python3.6
Command 'python3.6' not found, did you mean:
command 'python3.8' from deb python3.8-minimal (3.8.0~a3-2)
command 'python3.7' from deb python3.7-minimal (3.7.3-2)
Try: Sudo apt install <deb name>
Python3 + Tab
milano@milano-desktop:~$ python3
python3 python3.7 python3.7m python3m
デッドスネーク
milano@milano-desktop:~$ Sudo add-apt-repository ppa:deadsnakes/ppa
This PPA contains more recent Python versions packaged for Ubuntu.
Disclaimer: there's no guarantee of timely updates in case of security problems or other issues. If you want to use them in a security-or-otherwise-critical environment (say, on a production server), you do so at your own risk.
Update Note
===========
Please use this repository instead of ppa:fkrull/deadsnakes.
Reporting Issues
================
Issues can be reported in the master issue tracker at:
https://github.com/deadsnakes/issues/issues
Supported Ubuntu and Python Versions
====================================
Python 3.6 - Ubuntu 14.04, Ubuntu 16.04
For Ubuntu up to 18.04, there's also packages for old Python versions from 2.3 to 3.4.
The packages may also work on other versions of Ubuntu or Debian, but that is not tested or supported.
Third-Party Python Modules
==========================
Python modules in the official Ubuntu repositories are packaged to work with the Python interpreters from the official repositories. Accordingly, they generally won't work with the Python interpreters from this PPA. As an exception, pure-Python modules for Python 3 will work, but any compiled extension modules won't.
To install 3rd-party Python modules, you should use the common Python packaging tools. For an introduction into the Python packaging ecosystem and its tools, refer to the Python Packaging User Guide:
https://packaging.python.org/installing/
Sources
=======
The package sources are available at:
https://github.com/deadsnakes/
More info: https://launchpad.net/~deadsnakes/+archive/ubuntu/ppa
Press [ENTER] to continue or Ctrl-c to cancel adding it.
Hit:1 http://cz.archive.ubuntu.com/ubuntu disco InRelease
Ign:2 http://ppa.launchpad.net/deadsnakes/ppa/ubuntu disco InRelease
Get:3 http://cz.archive.ubuntu.com/ubuntu disco-updates InRelease [88,4 kB]
Hit:4 http://security.ubuntu.com/ubuntu disco-security InRelease
Hit:5 http://cz.archive.ubuntu.com/ubuntu disco-backports InRelease
Ign:6 http://ppa.launchpad.net/jonathonf/python-3.6/ubuntu disco InRelease
Err:7 http://ppa.launchpad.net/deadsnakes/ppa/ubuntu disco Release
404 Not Found [IP: 91.189.95.83 80]
Err:8 http://ppa.launchpad.net/jonathonf/python-3.6/ubuntu disco Release
404 Not Found [IP: 91.189.95.83 80]
Reading package lists... Done
E: The repository 'http://ppa.launchpad.net/deadsnakes/ppa/ubuntu disco Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
E: The repository 'http://ppa.launchpad.net/jonathonf/python-3.6/ubuntu disco Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
システムをめちゃくちゃにしないでください。
Ubuntu 19.04 AS Python 3.7与えられた標準として、Python 3.6。*で動作したい場合は、Condaをインストールして、特定Pythonの環境を作成する必要があります。バージョン：
_conda create --name py36 -c conda-forge python=3.6.* pip
_必ず他の仮想環境を作成してPIPを使用することもできます。
それともDockerに行くことができました。
使用できるLinux/Macosでは nix が好き
_nix-env -iA nixpkgs.python37
_たくさんの環境を入力する。この場合Python3.7（バージョンを変更することができます）
あるいは、非常に良いPython（高度な）環境使用できる環境 MACH-NIX （NIX付き）
_mach-nix env ./env -r requirements.txt
_（これはConda [しかし現在ベータ版）をサポートしています）
またはAPIのように
_nix-Shell -p nixFlakes --run "nix run github:davhau/mach-nix#with.ipython.pandas.seaborn.bokeh.scikit-learn "
_あなたが本当にオペレーティングシステムでバージョンを変更したい場合は、Nixosを使用することをお勧めします。