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Correct handling of Python2 and Python3

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http://unix.stackexchange.com – What is the correct way running scripts that depend on python2.x but on a system where python3.x is aliased with python. The solution should take into account the following things : Python2 should be used only for that bash run every script that is run form subsequently should also use Python2 The change should be temporary One solution is temporary making alias and setting the location for Python2 at the beginning of the full PATH. What is the right (*nix) way to handle this ? (HowTos)

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Submitted by Songlist on 01/29/2013

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There are many syntax differences in python3. For example, the very first programming lesson of python2:print 'Hello World!'won't work in python 3. It has to beprint('Hello World!')But you can keep both python2 and python3 in archlinux. Just remember python means python3 and python2 means of course python2.

I'm trying to get python3 working and all setup while keeping the python2 libraries in tact (system dependencies and all that).

I've installed Python3.3 (compiled, etc..) and its in /usr/bin/Python3 side by side with /usr/bin/Python2.x

Entering 'python' will take me to a 2.6 IDE and 'python3' or 'python3.3' does nothing.

I've just been attacked with exactly the same console output after running scribes, and after some investigation it seems like some parts of scribes are being run using python3 instead of python2.E.g.

Hi folks,

I just upgraded from Karmic to Precise and it is my first exposure to Unity. Being a beast of habit, my first impression is one of helplessness and subsequently disgust at my helplessness, but I'm stuck now :D

I was hoping on upgrade, that automagically my python2.6 installation (with all packages) would be removed and replaced for the corresponding python2.7 version.

I am not able to install Django.I am using CentOS 5,not able to set python2.7 environment variable.Priviously in my system python2.4.3 is available,but after installing python 2.7 in the terminal i checked the version avail in system using "python -V"cmd it executed as python 2.4.3.But if i checked using "python2.7 -V"cmd it is showing python2.7.Please help me with this.....

1.I need to set pytho

Right. By default arch uses python3. A lot of applications are still using Python2. Try symlinking python to python2 instead of 3. That may be your issue.

mrlithid https://bbs.archlinux.org/profile.php?id=55835

2012-09-20T23:57:35Z

Introduction After trying to upgrade my Arch Linux today running pacman -Syu

I got this error:

error: failed to commit transaction (conflicting files) python2-distribute: /usr/lib/python2.7/site-packages/pkg_resources.pyo exists in filesystem Solving the “python2-distribute: /usr/lib/python2.7/site-packages/pkg_resources.pyo exists in filesystem” error First check which package is us

I am doing maintenance for a python code. Python is installed in /usr/bin, the code installed in /aaa, a python 2.5 installed under /aaa/python2.5. Each time I run Python, it use /usr/bin one. How to make it run /aaa/python2.5?

There were a couple discussions on arch-dev-public about the naming of python2/python3, lua5.2/lua5.1, etc. type packages.

ZekeSulastin https://bbs.archlinux.org/profile.php?id=42797

2012-10-17T23:33:51Z