On Sat, Jul 14, 2018 at 8:23 PM Mats Wichmann <m...@wichmann.us> wrote: > > take a look at pyenv. should make it fairly easy. > > https://github.com/pyenv/pyenv
I just completed getting access to Python 3.6.6 using pyenv, so I guess I'll post my experience for future searchers. It was not totally painless, and I am still pondering whether I used "sudo" inappropriately or not. Recall I am on Linux Mint 19 Cinnamon edition. First, the page Mats linked to mentioned an automatic installer for pyenv in another GitHub project of the author's, so I used that. It was here: https://github.com/pyenv/pyenv-installer I used the recommended "GitHub way" instead of the PyPi way which apparently is still in development and doesn't work for Python 3 anyway. So I ran: $ curl -L https://github.com/pyenv/pyenv-installer/raw/master/bin/pyenv-installer | bash Then I added to the end of my .bashrc: export PATH="/home/bob/.pyenv/bin:$PATH" eval "$(pyenv init -)" eval "$(pyenv virtualenv-init -)" This apparently allows pyenv's "shims" to take precedence in the search path for Python versions. Warning: On the page Mats linked there are some reports of getting into an infinite search loop if these lines are added to .bashrc. After pondering the specifics I did not think it would affect me, so I went ahead with what I did. I then did the suggested restart of my shell with: $ exec "$SHELL" pyenv seemed to be successfully installed. I ran $ pyenv update just to be sure I had the latest, greatest, which I did. I then ran $pyenv install --list to see if Python 3.6.6 was available. It was and the list of available versions is HUGE running from 2.1.3 to 3.8-dev to Active Python versions to Anaconda versions, IronPython, Jython, MiniConda, PyPy, Stackless, etc. So I thought I was ready to download and install Python 3.6.6 with $ pyenv install 3.6.6 It *did* download from https://www.python.org/ftp/python/3.6.6/Python-3.6.6.tar.xz, something you could tell I was concerned about from my earlier posts. Unfortunately I got: Installing Python-3.6.6... BUILD FAILED (LinuxMint 19 using python-build 20180424) So I went to https://github.com/pyenv/pyenv/wiki/Common-build-problems, which at the very top of the page recommended running this: $ 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 So without pausing for further thought I did run it, but now wonder if this will cause me future consequences with system stuff as later I read on the FAQ page a similar command without granting sudo privileges. So I jumped into the fire on this one without fully understanding what I was doing. But after doing this I was able to get 3.6.6, but there was still one more thing to do and that was to run $ pyenv global 3.6.6 because I did want to be able to type python3 in the shell and get specifically 3.6.6 as my default version -- for now at least. I probably did not do everything like I should, but maybe this will help someone down the line do better. So far I seem to have everything working and doing what I had hoped for. pyenv looks like a fine tool for managing as many Python versions as one wants to play around with, and does seem to support virtual environments with a plugin. boB _______________________________________________ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor
