Poetry-virtualenv environment construction with python of centos-sclo-rh ~ Notes

Background

Trying to use vaex, is it a bug in the OS default Python 2.7.5? Cannot be used by I was lightly addicted to installing Python 2.7.17 and trying to continue the project, so make a note.

environment

CentOS 7.5.1804 Python2.7.17 Poetry 1.0.5 tcsh

Installation

I tried other installation methods such as pyenv, but decided to use sclo python, which seems to be the easiest to build an environment on another machine.

sudo yum -y install centos-release-scl-rh
sudo yum -y install python27

Normally, / opt / rh / python27 / enable should be installed here, but there are times when it is not done for some reason. In that case, either handwrite it or install python36 etc. and copy and modify enable. Since enable is written in bash, rewrite it in tcsh.

vim /opt/rh/python27/enable

#!/usr/bin/env tcsh

if ($?PATH) then
  setenv PATH /opt/rh/python27/root/usr/bin:${PATH}
else
  setenv PATH /opt/rh/python27/root/usr/bin
endif
if ($?LD_LIBRARY_PATH) then
  setenv LD_LIBRARY_PATH /opt/rh/python27/root/usr/lib64:${LD_LIBRARY_PATH}
else
  setenv LD_LIBRARY_PATH /opt/rh/python27/root/usr/lib64
endif

if ($?MANPATH) then
  setenv MANPATH /opt/rh/python27/root/usr/share/man:${MANPATH}
else
  setenv MANPATH /opt/rh/python27/root/usr/share/man
endif

if ($?PKG_CONFIG_PATH) then
  setenv PKG_CONFIG_PATH /opt/rh/python27/root/usr/lib64/pkgconfig:${PKG_CONFIG_PATH}
else
  setenv PKG_CONFIG_PATH /opt/rh/python27/root/usr/lib64/pkgconfig
endif

if ($?XDG_DATA_DIRS) then
  setenv XDG_DATA_DIRS /opt/rh/python27/root/usr/share:${XDG_DATA_DIRS}
else
  setenv XDG_DATA_DIRS /opt/rh/python27/root/usr/share
endif

activation

Since it is tcsh, scl enable python27 tcsh cannot be used like other shells, so enable is directly sourced and enabled.

$ python -V
Python 2.7.5

$ source /opt/rh/python27/enable
$ python -V
Python 2.7.17

OK if the version has changed properly.

Poetry environment creation

p ** in the shell that sourced enable ** poetry init If you have already created virtualenv with OS Python, delete the environment once and poetry install This will create an environment in SCLO Python.

Development environment

There is no problem with the statement used from the terminal so far, but when I tried to use Python in the created environment from PyCharm, an error occurred and it did not work. (Error log disappeared)

The cause was that the environment variable set by enable was not set from PyCharm. It's not very pretty, but I solved it by making python2.7 a shell script and source enable when executing python.

cd `poetry env info --path`/bin
mv python2.7 python2.7_original

vim python2.7

python2.7

#!/usr/bin/env tcsh

source /opt/rh/python27/enable
`dirname $0`/python2.7_original $*