You can install Python-3.6 on Debian 8 as follows:
1 2 3 4 5 6 7 | 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 installcan overwrite or masquerade the python binary.make altinstallis therefore recommended instead ofmake installsince it only installsexec_prefix/bin/pythonversion.
Some packages need to be installed to avoid some known problems, see: Common build problems(updated)
Ubuntu/Debian:
1 2 3 | 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:
1 | sudo apt install libedit-dev |
Fedora/CentOS/RHEL(aws ec2):
1 2 | sudo yum install zlib-devel bzip2 bzip2-devel readline-devel sqlite sqlite-devel \ openssl-devel xz xz-devel libffi-devel |
Alternative of openssl-devel:
1 | 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:
1 2 3 | /usr/local/bin/python3.7 /usr/bin/python2.7 /usr/bin/python3.5 |
Add the python versions:
1 2 3 | 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:
1 | Python 3.7.0b2 |
To switch between them, use:
1 | update-alternatives --config python |
Sample output:
1 2 3 4 5 6 7 8 9 10 | 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: |
Refer: https://unix.stackexchange.com/questions/332641/how-to-install-python-3-6
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