Home » How to install Python 3.6?

How to install Python 3.6?

Solutons:


[*]

You can install Python-3.6 on Debian 8 as follows:

wget https://www.python.org/ftp/python/3.6.9/Python-3.6.9.tgz
tar xvf Python-3.6.9.tgz
cd Python-3.6.9
./configure --enable-optimizations --enable-shared
make -j8
sudo make altinstall
python3.6

It is recommended to use make altinstall according to the official website.

If you want pip to be included, you need to add --with-ensurepip=install to your configure call. For more details see ./configure --help.

Warning: make install can overwrite or masquerade the python binary. make altinstall is therefore recommended instead of make install since it only installs exec_prefix/bin/pythonversion.

Some packages need to be installed to avoid some known problems, see: Common build problems(updated)

Ubuntu/Debian:

sudo apt-get install -y make build-essential libssl-dev zlib1g-dev libbz2-dev 
libreadline-dev libsqlite3-dev wget curl llvm libncurses5-dev libncursesw5-dev 
xz-utils tk-dev libffi-dev liblzma-dev

Alternative of libreadline-dev:

sudo apt install libedit-dev

Fedora/CentOS/RHEL(aws ec2):

sudo yum install zlib-devel bzip2 bzip2-devel readline-devel sqlite sqlite-devel 
openssl-devel xz xz-devel libffi-devel

Alternative of openssl-devel:

sudo yum install compat-openssl10-devel --allowerasing

Update

You can download the latest python-x.y.z.tar.gz from here.

To set a default python version and easily switch between them , you need to update your update-alternatives with the multiple python version.

Let’s say you have installed the python3.7 on debian stretch , use the command whereis python to locate the binary (*/bin/python). e,g:

/usr/local/bin/python3.7
/usr/bin/python2.7
/usr/bin/python3.5

Add the python versions:

update-alternatives --install /usr/bin/python python /usr/local/bin/python3.7 50
update-alternatives --install /usr/bin/python python /usr/bin/python2.7 40
update-alternatives --install /usr/bin/python python /usr/bin/python3.5 30

The python3.7 with the 50 priority is now your default python , the python -V will print:

Python 3.7.0b2

To switch between them, use:

update-alternatives --config python

Sample output:

There are 3 choices for the alternative python (providing /usr/bin/python).

  Selection    Path                      Priority   Status
------------------------------------------------------------
* 0            /usr/local/bin/python3.7   50        auto mode
  1            /usr/bin/python2.7         40        manual mode
  2            /usr/bin/python3.5         30        manual mode
  3            /usr/local/bin/python3.7   50        manual mode

Press <enter> to keep the current choice[*], or type selection number: 

[*]

Editorial note:[*]
Warning: this answer shows how to install Python from future releases of Debian. This will result in a system which mixes Debian releases, and will affect more than Python — in most cases, applying these instructions will pull in newer libraries too. The resulting setup won’t benefit from security updates with the same speed as might be expected, for packages which are updated. This is known as a FrankenDebian.

Consider the other answers to this question instead, in particular this one showing how to build from source, and this one showing how to use virtual environments.


Debian does not have Python 3.6 in its repositories, but testing has it.

$ sudo nano /etc/apt/sources.list
# add
deb http://ftp.de.debian.org/debian testing main
$ echo 'APT::Default-Release "stable";' | sudo tee -a /etc/apt/apt.conf.d/00local
$ sudo apt-get update
$ sudo apt-get -t testing install python3.6
$ python3.6 -V

You asked for:

the proper and officially accepted procedure

but I must point it out that this is not official solution because it uses testing repositories.

[*]

The official recommendation is “you don’t actually need newer software”

Don’t suffer from Shiny New Stuff Syndrome – DontBreakDebian | Debian Wiki

Most of the advice on that page is geared towards what to do if you want the software to be available system-wide, but I don’t think that’s necessary in this case.

If you fetch the python sources, build the 3.6 interpreter using --prefix to control where it ends up, and then use virtualenv with the --python option, then you can use python 3.6 without affecting anything outside your project.

The process might go something like this:

$ cd ~
$ mkdir pythonroot
$ mkdir opt
$ mkdir app
$ cd opt
$ wget <python tarball>
$ tar -xvf <python tarball>
$ cd python-3.6
$ ./configure --prefix="$HOME"/pythonroot
$ make
$ make install
$ cd ~
$ cd app
$ virtualenv venv --python ~/pythonroot/bin/python
$ . venv/bin/activate
[venv]$ which python
/home/<user>/pythonroot/bin/python

If you’re going to do this, you may want to consider the --enable-optimizations flag in the Python configure script, which seems to enable some features like profile-guided optimization. It increases build times but seems to result in a faster interpreter by 10% or so according to some benchmarks.

[*]

Related Solutions

Joining bash arguments into single string with spaces

[*] I believe that this does what you want. It will put all the arguments in one string, separated by spaces, with single quotes around all: str="'$*'" $* produces all the scripts arguments separated by the first character of $IFS which, by default, is a space....

AddTransient, AddScoped and AddSingleton Services Differences

TL;DR Transient objects are always different; a new instance is provided to every controller and every service. Scoped objects are the same within a request, but different across different requests. Singleton objects are the same for every object and every...

How to download package not install it with apt-get command?

Use --download-only: sudo apt-get install --download-only pppoe This will download pppoe and any dependencies you need, and place them in /var/cache/apt/archives. That way a subsequent apt-get install pppoe will be able to complete without any extra downloads....

What defines the maximum size for a command single argument?

Answers Definitely not a bug. The parameter which defines the maximum size for one argument is MAX_ARG_STRLEN. There is no documentation for this parameter other than the comments in binfmts.h: /* * These are the maximum length and maximum number of strings...

Bulk rename, change prefix

I'd say the simplest it to just use the rename command which is common on many Linux distributions. There are two common versions of this command so check its man page to find which one you have: ## rename from Perl (common in Debian systems -- Ubuntu, Mint,...

Output from ls has newlines but displays on a single line. Why?

When you pipe the output, ls acts differently. This fact is hidden away in the info documentation: If standard output is a terminal, the output is in columns (sorted vertically) and control characters are output as question marks; otherwise, the output is...

mv: Move file only if destination does not exist

mv -vn file1 file2. This command will do what you want. You can skip -v if you want. -v makes it verbose - mv will tell you that it moved file if it moves it(useful, since there is possibility that file will not be moved) -n moves only if file2 does not exist....

Is it possible to store and query JSON in SQLite?

SQLite 3.9 introduced a new extension (JSON1) that allows you to easily work with JSON data . Also, it introduced support for indexes on expressions, which (in my understanding) should allow you to define indexes on your JSON data as well. PostgreSQL has some...

Combining tail && journalctl

You could use: journalctl -u service-name -f -f, --follow Show only the most recent journal entries, and continuously print new entries as they are appended to the journal. Here I've added "service-name" to distinguish this answer from others; you substitute...

how can shellshock be exploited over SSH?

One example where this can be exploited is on servers with an authorized_keys forced command. When adding an entry to ~/.ssh/authorized_keys, you can prefix the line with command="foo" to force foo to be run any time that ssh public key is used. With this...

Why doesn’t the tilde (~) expand inside double quotes?

The reason, because inside double quotes, tilde ~ has no special meaning, it's treated as literal. POSIX defines Double-Quotes as: Enclosing characters in double-quotes ( "" ) shall preserve the literal value of all characters within the double-quotes, with the...

What is GNU Info for?

GNU Info was designed to offer documentation that was comprehensive, hyperlinked, and possible to output to multiple formats. Man pages were available, and they were great at providing printed output. However, they were designed such that each man page had a...

Set systemd service to execute after fstab mount

a CIFS network location is mounted via /etc/fstab to /mnt/ on boot-up. No, it is not. Get this right, and the rest falls into place naturally. The mount is handled by a (generated) systemd mount unit that will be named something like mnt-wibble.mount. You can...

Merge two video clips into one, placing them next to each other

To be honest, using the accepted answer resulted in a lot of dropped frames for me. However, using the hstack filter_complex produced perfectly fluid output: ffmpeg -i left.mp4 -i right.mp4 -filter_complex hstack output.mp4 ffmpeg -i input1.mp4 -i input2.mp4...

How portable are /dev/stdin, /dev/stdout and /dev/stderr?

It's been available on Linux back into its prehistory. It is not POSIX, although many actual shells (including AT&T ksh and bash) will simulate it if it's not present in the OS; note that this simulation only works at the shell level (i.e. redirection or...

How can I increase the number of inodes in an ext4 filesystem?

It seems that you have a lot more files than normal expectation. I don't know whether there is a solution to change the inode table size dynamically. I'm afraid that you need to back-up your data, and create new filesystem, and restore your data. To create new...

Why doesn’t cp have a progress bar like wget?

The tradition in unix tools is to display messages only if something goes wrong. I think this is both for design and practical reasons. The design is intended to make it obvious when something goes wrong: you get an error message, and it's not drowned in...