I have python 3.6.3 currently on my system(ubunut 16.04). but i found that python 3.6 is not supported on ubuntu 16.04 so i want to get python 3.5 on my system.
I installed it from here.
Can anyone tell in detail how to do that...
asked Nov 15, 2017 at 20:38
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Please edit your question and include specific details about how exactly you installed the newer python version.– dobeyNov 15, 2017 at 20:40
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2 Answers
Here, this should help.
Download python 3.5
cd /usr/src
wget https://www.python.org/ftp/python/3.5.2/Python-3.5.2.tgz
sudo tar xzf Python-3.5.2.tgz
Install required packages
sudo apt-get install build-essential checkinstall \
libreadline-gplv2-dev libncursesw5-dev libssl-dev \
libsqlite3-dev tk-dev libgdbm-dev libc6-dev libbz2-dev
Install python
cd Python-3.5.2
sudo ./configure
sudo make altinstall
Now check the python version python -V
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I got permission denied in wget command. Therefore using sudo wget worked for me. I was installing python 3.7.6 btw. Reference: stackoverflow.com/a/25816730/6907424– hafiz031Jul 4, 2020 at 12:52
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Simplest way of installing and switching to other version of python is using pyenv.
# Get Pyenv
curl -L https://github.com/pyenv/pyenv-installer/raw/master/bin/pyenv-installer | bash
# add pyenv to ~/.bashrc
echo -e "export PATH="/root/.pyenv/bin:$PATH" \n eval "$(pyenv init -)" \n eval "$(pyenv virtualenv-init -)" " >> ~/.bashrc
source ~/.bashrc
# install python 3 via pyenv
pyenv install 3.5.6
# verify
pyenv versions
# pyenv local <version> : use this to set python version per directory.
# pyenv global <version> : use this to set python version globally.
