问题
I am using Msys2 portable under Win 10. I have 2 python 3.8 installations. The original question asked if that is so. I am now certain it is, so for the time being I want to deal with their maintenance.
I also posted another related question Msys2: readline in two python installations
I am posting below information on both.
My questions are:
Can they interfere with each other? If so, what steps/configuration should I deal with? (
PYTHONPATH,site-packages, etc.)Would it be safe removing any one of them, without breaking the other? Dependencies below seem to me this implies no risk, but I am not certain that is enough information to answer this.
Which would be the best one to keep? I mean to use
numpy,pandas, gcc-toolchain and debugger via Eclipse CDT, and a number of other packages.
PS1: This is in addition to python2, for which the same questions would apply.
PS2: It seems strange to me that the available subversions are not exactly the same, even if versions are both 3.8.2.
PS3:
These two pythons are likely upgrades from the main characters of this "play", python 3.8 (3.8.1 before) upgraded to mingw-w64-x86_64-python 3.8.2-2 and python 3.7 upgraded to python 3.8.2-1.
Packages providing python
$ pacman -Sl | grep "python " | grep "installed"
mingw64 mingw-w64-x86_64-python 3.8.2-2 [installed]
msys python 3.8.2-1 [installed]
Additional info on each (dependencies, etc.)
$ pacman -Qi mingw-w64-x86_64-python
Name : mingw-w64-x86_64-python
Version : 3.8.2-2
Description : A high-level scripting language (mingw-w64)
Architecture : any
URL : https://www.python.org/
Licenses : PSF
Groups : None
Provides : mingw-w64-x86_64-python3=3.8.2
Depends On : mingw-w64-x86_64-gcc-libs mingw-w64-x86_64-expat mingw-w64-x86_64-bzip2 mingw-w64-x86_64-libffi mingw-w64-x86_64-mpdecimal
mingw-w64-x86_64-ncurses mingw-w64-x86_64-openssl mingw-w64-x86_64-sqlite3 mingw-w64-x86_64-tcl mingw-w64-x86_64-tk mingw-w64-x86_64-zlib
mingw-w64-x86_64-xz
Optional Deps : None
Required By : mingw-w64-x86_64-gdb mingw-w64-x86_64-glib2 mingw-w64-x86_64-gtest mingw-w64-x86_64-mono mingw-w64-x86_64-postgresql
mingw-w64-x86_64-python-apipkg mingw-w64-x86_64-python-appdirs mingw-w64-x86_64-python-atomicwrites mingw-w64-x86_64-python-attrs
mingw-w64-x86_64-python-cairo mingw-w64-x86_64-python-colorama mingw-w64-x86_64-python-contextlib2 mingw-w64-x86_64-python-cycler
mingw-w64-x86_64-python-defusedxml mingw-w64-x86_64-python-imagesize mingw-w64-x86_64-python-importlib-metadata mingw-w64-x86_64-python-iniconfig
mingw-w64-x86_64-python-jdcal mingw-w64-x86_64-python-kiwisolver mingw-w64-x86_64-python-lxml mingw-w64-x86_64-python-more-itertools
mingw-w64-x86_64-python-numpy mingw-w64-x86_64-python-olefile mingw-w64-x86_64-python-ordered-set mingw-w64-x86_64-python-packaging
mingw-w64-x86_64-python-pathlib2 mingw-w64-x86_64-python-pillow mingw-w64-x86_64-python-pluggy mingw-w64-x86_64-python-py
mingw-w64-x86_64-python-pyparsing mingw-w64-x86_64-python-pytest mingw-w64-x86_64-python-pytz mingw-w64-x86_64-python-scandir
mingw-w64-x86_64-python-seaborn mingw-w64-x86_64-python-setuptools mingw-w64-x86_64-python-sip mingw-w64-x86_64-python-six
mingw-w64-x86_64-python-wcwidth mingw-w64-x86_64-python-zipp mingw-w64-x86_64-vapoursynth
Optional For : mingw-w64-x86_64-vtk
Conflicts With : mingw-w64-x86_64-python3 mingw-w64-x86_64-python2<2.7.16-7
Replaces : mingw-w64-x86_64-python3
Installed Size : 112.87 MiB
Packager : Alexey Pavlov <alexpux@gmail.com>
Build Date : Thu, Apr 9, 2020 10:17:39 AM
Install Date : Wed, Apr 22, 2020 10:04:36 AM
Install Reason : Explicitly installed
Install Script : No
Validated By : Signature
$ pacman -Qi python
Name : python
Version : 3.8.2-1
Description : Next generation of the python high-level scripting language
Architecture : i686
URL : https://www.python.org/
Licenses : custom
Groups : None
Provides : python3
Depends On : libbz2 libexpat libffi liblzma ncurses libopenssl libreadline mpdecimal libsqlite zlib
Optional Deps : None
Required By : gdb python3-appdirs python3-attrs python3-pip python3-pyparsing python3-six scons
Optional For : None
Conflicts With : None
Replaces : python3
Installed Size : 47.27 MiB
Packager : Alexey Pavlov <alexpux@gmail.com>
Build Date : Thu, Apr 16, 2020 12:31:48 PM
Install Date : Wed, Apr 22, 2020 10:15:54 AM
Install Reason : Explicitly installed
Install Script : No
Validated By : Signature
Packages providing python2
$ pacman -Sl | grep "python2 " | grep "installed"
mingw64 mingw-w64-x86_64-python2 2.7.18-1 [installed: 2.7.17-2]
msys python2 2.7.18-1 [installed: 2.7.17-1]
来源：https://stackoverflow.com/questions/61378854/msys2-maintaining-two-python-installations