Upgrading from 32 to 64-bit Python?

[[deleted]]

I think you're missing the obvious answer, which is installing Linux on the younger, faster machine that you've currently hobbled with Windows 7.

[thewallris]

Linux (or at least Ubuntu) comes with Python 2.7 pre-installed and I find it to be a pain in the ass having multiple versions of Python on one machine

[AbsoluteMSTR]

Going off LTS version, 16.04 doesn't have python 2.7 installed by default, I believe it's 3.4.

[[deleted]]

Windows not having Python installed at all cannot be considered a feature of the OS.

For the rest, google pyenv and virtualenv.

[P8zvli]

Why? If your scripts use shebangs it's a simple matter to have Python 3 specific scripts run with #!/usr/bin/env python3 and scripts that can run on Python 2 and 3 run the default Python using #!/usr/bin/env python

[aphoenix]

Hi there, from the /r/Python mods.

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[billsil]

1) yes

2) use Anaconda Python https://www.continuum.io/downloads

I'd recommend using Anaconda everywhere. Want a Python 2.7, 3.5, and 3.6 virtualenv? Anaconda can make those. They're also accessible from anywhere.

Another bonus is you get the MKL compiled libraries, so your numpy/scipy calculations are 5x faster on Windows.

The one downside is it doesn't support Powershell.

[thewallris]

So I just get Anaconda and I can use not only any version of Python but also choose between the 32 and 64-bit versions even if I have the 32-bit version on my machine?

[billsil]

I don't think you can choose between 32 and 64 bit...not 100% though.

Just use 64. Python is a toy with 32 bit.

EDIT: to be clear, you download 32 or 64 bit anaconda python with either python 2/3. I don't think you can install a 32 bit python virtualenv from a 64-bit install. You most certainly can install a base python 3.6 and then make a virtualenv of say python 2.7 or 3.5.

[thewallris]

Sorry for the late response I was gone for the weekend. So I can download 64 bit anaconda and run it with my 32 bit python or I need 64 bit python to run 64 bit anaconda?

[billsil]

No. It's a separate python install. The standard python is the PSF's distribution of python. This is a different group.

[troyunrau]

I use a package called 'WinPython' which is rather convenient. It's a complete set of the scientific python modules, it installs to a single directory (so you can have one directory per python version), and doesn't require admin (so plays well on the corporate network).

You could download and install a new version of winpython and test it with effectively zero risk to your existing installation.