How do I install Python 3 on an AWS EC2 instance?
Question:
I’m trying to install python 3.x on an AWS EC2 instance and:
sudo yum install python3
doesn’t work:
No package python3 available.
I’ve googled around and I can’t find anyone else who has this problem so I’m asking here. Do I have to manually download and install it?
Answers:
Here are the steps I used to manually install python3 for anyone else who wants to do it as it’s not super straight forward. EDIT: It’s almost certainly easier to use the yum package manager (see other answers).
Note, you’ll probably want to do sudo yum groupinstall 'Development Tools' before doing this otherwise pip won’t install.
wget https://www.python.org/ftp/python/3.4.2/Python-3.4.2.tgz
tar zxvf Python-3.4.2.tgz
cd Python-3.4.2
sudo yum install gcc
./configure --prefix=/opt/python3
make
sudo yum install openssl-devel
sudo make install
sudo ln -s /opt/python3/bin/python3 /usr/bin/python3
python3 (should start the interpreter if it's worked (quit() to exit)
If you do a
sudo yum list | grep python3
you will see that while they don’t have a “python3” package, they do have a “python34” package, or a more recent release, such as “python36”. Installing it is as easy as:
sudo yum install python34 python34-pip
EC2 (on the Amazon Linux AMI) currently supports python3.4 and python3.5.
sudo yum install python35
sudo yum install python35-pip
As of Amazon Linux version 2017.09 python 3.6 is now available:
sudo yum install python36 python36-virtualenv python36-pip
See the Release Notes for more info and other packages
Note: This may be obsolete for current versions of Amazon Linux 2 since late 2018 (see comments), you can now directly install it via yum install python3.
In Amazon Linux 2, there isn’t a python3[4-6] in the default yum repos, instead there’s the Amazon Extras Library.
sudo amazon-linux-extras install python3
If you want to set up isolated virtual environments with it; using yum install‘d virtualenv tools don’t seem to reliably work.
virtualenv --python=python3 my_venv
Calling the venv module/tool is less finicky, and you could double check it’s what you want/expect with python3 --version beforehand.
python3 -m venv my_venv
Other things it can install (versions as of 18 Jan 18):
[ec2-user@x ~]$ amazon-linux-extras list
0 ansible2 disabled [ =2.4.2 ]
1 emacs disabled [ =25.3 ]
2 memcached1.5 disabled [ =1.5.1 ]
3 nginx1.12 disabled [ =1.12.2 ]
4 postgresql9.6 disabled [ =9.6.6 ]
5 python3=latest enabled [ =3.6.2 ]
6 redis4.0 disabled [ =4.0.5 ]
7 R3.4 disabled [ =3.4.3 ]
8 rust1 disabled [ =1.22.1 ]
9 vim disabled [ =8.0 ]
10 golang1.9 disabled [ =1.9.2 ]
11 ruby2.4 disabled [ =2.4.2 ]
12 nano disabled [ =2.9.1 ]
13 php7.2 disabled [ =7.2.0 ]
14 lamp-mariadb10.2-php7.2 disabled [ =10.2.10_7.2.0 ]
Amazon Linux now supports python36.
python36-pip is not available. So need to follow a different route.
sudo yum install python36 python36-devel python36-libs python36-tools
# If you like to have pip3.6:
curl -O https://bootstrap.pypa.io/get-pip.py
sudo python3 get-pip.py
As @NickT said, there’s no python3[4-6] in the default yum repos in Amazon Linux 2, as of today it uses 3.7 and looking at all answers here we can say it will be changed over time.
I was looking for python3.6 on Amazon Linux 2 but amazon-linux-extras shows a lot of options but no python at all. in fact, you can try to find the version you know in epel repo:
sudo amazon-linux-extras install epel
yum search python | grep "^python3..x8"
python34.x86_64 : Version 3 of the Python programming language aka Python 3000
python36.x86_64 : Interpreter of the Python programming language
Adding to all the answers already available for this question, I would like to add the steps I followed to install Python3 on AWS EC2 instance running CentOS 7. You can find the entire details at this link.
https://aws-labs.com/install-python-3-centos-7-2/
First, we need to enable SCL. SCL is a community project that allows you to build, install, and use multiple versions of software on the same system, without affecting system default packages.
sudo yum install centos-release-scl
Now that we have SCL repository, we can install the python3
sudo yum install rh-python36
To access Python 3.6 you need to launch a new shell instance using the Software Collection scl tool:
scl enable rh-python36 bash
If you check the Python version now you’ll notice that Python 3.6 is the default version
python --version
It is important to point out that Python 3.6 is the default Python version only in this shell session. If you exit the session or open a new session from another terminal Python 2.7 will be the default Python version.
Now, Install the python development tools by typing:
sudo yum groupinstall ‘Development Tools’
Now create a virtual environment so that the default python packages don’t get messed up.
mkdir ~/my_new_project
cd ~/my_new_project
python -m venv my_project_venv
To use this virtual environment,
source my_project_venv/bin/activate
Now, you have your virtual environment set up with python3.
On Debian derivatives such as Ubuntu, use apt. Check the apt repository for the versions of Python available to you. Then, run a command similar to the following, substituting the correct package name:
sudo apt-get install python3
On Red Hat and derivatives, use yum. Check the yum repository for the versions of Python available to you. Then, run a command similar to the following, substituting the correct package name:
sudo yum install python36
On SUSE and derivatives, use zypper. Check the repository for the versions of Python available to you. Then. run a command similar to the following, substituting the correct package name:
sudo zypper install python3
Here is the one command to install python3 on Amazon linux ec2 instance:
$sudo yum install python3 -y
$python3 –version
Python 3.7.6
Check the packages available
A> amazon-linux-extras
Find the required python package with version from the list
B> sodo amazon-linux-extras enable python<version_available>
C> sudo yum clean metadata && sudo yum install python<version_available>
try this
sudo yum install python34 python34-pip
I’m trying to install python 3.x on an AWS EC2 instance and:
sudo yum install python3
doesn’t work:
No package python3 available.
I’ve googled around and I can’t find anyone else who has this problem so I’m asking here. Do I have to manually download and install it?
Here are the steps I used to manually install python3 for anyone else who wants to do it as it’s not super straight forward. EDIT: It’s almost certainly easier to use the yum package manager (see other answers).
Note, you’ll probably want to do sudo yum groupinstall 'Development Tools' before doing this otherwise pip won’t install.
wget https://www.python.org/ftp/python/3.4.2/Python-3.4.2.tgz
tar zxvf Python-3.4.2.tgz
cd Python-3.4.2
sudo yum install gcc
./configure --prefix=/opt/python3
make
sudo yum install openssl-devel
sudo make install
sudo ln -s /opt/python3/bin/python3 /usr/bin/python3
python3 (should start the interpreter if it's worked (quit() to exit)
If you do a
sudo yum list | grep python3
you will see that while they don’t have a “python3” package, they do have a “python34” package, or a more recent release, such as “python36”. Installing it is as easy as:
sudo yum install python34 python34-pip
EC2 (on the Amazon Linux AMI) currently supports python3.4 and python3.5.
sudo yum install python35
sudo yum install python35-pip
As of Amazon Linux version 2017.09 python 3.6 is now available:
sudo yum install python36 python36-virtualenv python36-pip
See the Release Notes for more info and other packages
Note: This may be obsolete for current versions of Amazon Linux 2 since late 2018 (see comments), you can now directly install it via
yum install python3.
In Amazon Linux 2, there isn’t a python3[4-6] in the default yum repos, instead there’s the Amazon Extras Library.
sudo amazon-linux-extras install python3
If you want to set up isolated virtual environments with it; using yum install‘d virtualenv tools don’t seem to reliably work.
virtualenv --python=python3 my_venv
Calling the venv module/tool is less finicky, and you could double check it’s what you want/expect with python3 --version beforehand.
python3 -m venv my_venv
Other things it can install (versions as of 18 Jan 18):
[ec2-user@x ~]$ amazon-linux-extras list
0 ansible2 disabled [ =2.4.2 ]
1 emacs disabled [ =25.3 ]
2 memcached1.5 disabled [ =1.5.1 ]
3 nginx1.12 disabled [ =1.12.2 ]
4 postgresql9.6 disabled [ =9.6.6 ]
5 python3=latest enabled [ =3.6.2 ]
6 redis4.0 disabled [ =4.0.5 ]
7 R3.4 disabled [ =3.4.3 ]
8 rust1 disabled [ =1.22.1 ]
9 vim disabled [ =8.0 ]
10 golang1.9 disabled [ =1.9.2 ]
11 ruby2.4 disabled [ =2.4.2 ]
12 nano disabled [ =2.9.1 ]
13 php7.2 disabled [ =7.2.0 ]
14 lamp-mariadb10.2-php7.2 disabled [ =10.2.10_7.2.0 ]
Amazon Linux now supports python36.
python36-pip is not available. So need to follow a different route.
sudo yum install python36 python36-devel python36-libs python36-tools
# If you like to have pip3.6:
curl -O https://bootstrap.pypa.io/get-pip.py
sudo python3 get-pip.py
As @NickT said, there’s no python3[4-6] in the default yum repos in Amazon Linux 2, as of today it uses 3.7 and looking at all answers here we can say it will be changed over time.
I was looking for python3.6 on Amazon Linux 2 but amazon-linux-extras shows a lot of options but no python at all. in fact, you can try to find the version you know in epel repo:
sudo amazon-linux-extras install epel
yum search python | grep "^python3..x8"
python34.x86_64 : Version 3 of the Python programming language aka Python 3000
python36.x86_64 : Interpreter of the Python programming language
Adding to all the answers already available for this question, I would like to add the steps I followed to install Python3 on AWS EC2 instance running CentOS 7. You can find the entire details at this link.
https://aws-labs.com/install-python-3-centos-7-2/
First, we need to enable SCL. SCL is a community project that allows you to build, install, and use multiple versions of software on the same system, without affecting system default packages.
sudo yum install centos-release-scl
Now that we have SCL repository, we can install the python3
sudo yum install rh-python36
To access Python 3.6 you need to launch a new shell instance using the Software Collection scl tool:
scl enable rh-python36 bash
If you check the Python version now you’ll notice that Python 3.6 is the default version
python --version
It is important to point out that Python 3.6 is the default Python version only in this shell session. If you exit the session or open a new session from another terminal Python 2.7 will be the default Python version.
Now, Install the python development tools by typing:
sudo yum groupinstall ‘Development Tools’
Now create a virtual environment so that the default python packages don’t get messed up.
mkdir ~/my_new_project
cd ~/my_new_project
python -m venv my_project_venv
To use this virtual environment,
source my_project_venv/bin/activate
Now, you have your virtual environment set up with python3.
On Debian derivatives such as Ubuntu, use apt. Check the apt repository for the versions of Python available to you. Then, run a command similar to the following, substituting the correct package name:
sudo apt-get install python3
On Red Hat and derivatives, use yum. Check the yum repository for the versions of Python available to you. Then, run a command similar to the following, substituting the correct package name:
sudo yum install python36
On SUSE and derivatives, use zypper. Check the repository for the versions of Python available to you. Then. run a command similar to the following, substituting the correct package name:
sudo zypper install python3
Here is the one command to install python3 on Amazon linux ec2 instance:
$sudo yum install python3 -y
$python3 –version
Python 3.7.6
Check the packages available
A> amazon-linux-extras
Find the required python package with version from the list
B> sodo amazon-linux-extras enable python<version_available>
C> sudo yum clean metadata && sudo yum install python<version_available>
try this
sudo yum install python34 python34-pip