what is the easiest way to install multiple Python versions?

Albert-Jan Roskam fomcl at yahoo.com
Thu Oct 16 10:32:22 CEST 2014

----- Original Message -----

> From: Rustom Mody <rustompmody at gmail.com>
> To: python-list at python.org
> Cc: 
> Sent: Monday, October 13, 2014 10:00 AM
> Subject: Re: what is the easiest way to install multiple Python versions?
> On Monday, October 13, 2014 1:24:27 PM UTC+5:30, Chris Angelico wrote:
>>  On Mon, Oct 13, 2014 at 1:31 PM, Rustom Mody wrote:
>>  > Hearing a bit about docker nowadays.
>>  > Here's why its supposedly better than a VM:
>>  > https://www.docker.com/whatisdocker/
>>  > Downsides?? No idea!
>>  One obvious downside is that it doesn't allow guests to modify the OS
>>  at all. A VM gives you an entire OS, so you can use and manipulate
>>  anything. If you don't *need* all that flexibility, then a VM is
>>  paying an unnecessary cost, ergo Docker will have no downside.
> Was talking of more pragmatic downsides eg "Does it really work?" :-)
> [Docker is still quite new]

I have not used Docker before but I did look into it. Reason why I chose I full VM (Virtualbox in conjunction with Jenkins CI) is that I also needed to test Windows platforms. AFAIK, the Docker guest systems *must* be unix, possibly only Linux. A big plus of Docker is that the guest systems share resources, so it is a lot lighter to run multiple guest machines. I did hear that nowadays it is possible to use a Windows *host* system.

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