Re: [Distutils] Microsoft Visual C++ Compiler for Python 2.7

2014-10-01 Thread Olivier Grisel
2014-09-30 18:07 GMT+02:00 Steve Dower :
> Paul Moore wrote:
>> On 30 September 2014 16:56, Olivier Grisel  wrote:
>>> What is the story for project maintainers who want to also support
>>> Python 3.3+ (for 32 bit and 64 bit python) for their project with
>>> binary wheels for windows?
>>
>> It would be so easy at this point to ask "What's the chance of a similarly 
>> packaged
>> version of VS2010 for Python 3.2/3.3/3.4?" But I really don't want Steve to 
>> get into
>> any trouble with people saying "now look what you've started" :-)
>
> :-)
>
> The answer is basically no chance - the slippery slope was considered and 
> shut down.
>
> If VC14 slips significantly and we have to stick with VC10 for Python 3.5, 
> then I'll make the case again and see what we get, but for now the future 
> story is to upgrade. Luckily, 3.3->3.5 is not going to be as hard as 2.7->3.5.

Alright, sounds good. Thanks again.

-- 
Olivier
http://twitter.com/ogrisel - http://github.com/ogrisel
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Re: [Distutils] Microsoft Visual C++ Compiler for Python 2.7

2014-09-30 Thread Paul Moore
On 30 September 2014 17:07, Steve Dower  wrote:
> The answer is basically no chance - the slippery slope was considered and 
> shut down.

Fair enough. Actually, it's good to know that this sort of thing was
thought through.

> If VC14 slips significantly and we have to stick with VC10 for Python 3.5, 
> then I'll make the case again and see what we get, but for now the future 
> story is to upgrade. Luckily, 3.3->3.5 is not going to be as hard as 2.7->3.5.

Agreed - and given that VC14 Express will include 32- and 64-bit
compilers, the whole SDK rigmarole is avoided which was the key pain
point (well, that and the fact that things went out of support, but
the forward compatibility of VC14 addresses that one too).

Paul
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Re: [Distutils] Microsoft Visual C++ Compiler for Python 2.7

2014-09-30 Thread Steve Dower
Paul Moore wrote:
> On 30 September 2014 16:56, Olivier Grisel  wrote:
>> What is the story for project maintainers who want to also support 
>> Python 3.3+ (for 32 bit and 64 bit python) for their project with 
>> binary wheels for windows?
>
> It would be so easy at this point to ask "What's the chance of a similarly 
> packaged
> version of VS2010 for Python 3.2/3.3/3.4?" But I really don't want Steve to 
> get into
> any trouble with people saying "now look what you've started" :-)

:-)

The answer is basically no chance - the slippery slope was considered and shut 
down.

If VC14 slips significantly and we have to stick with VC10 for Python 3.5, then 
I'll make the case again and see what we get, but for now the future story is 
to upgrade. Luckily, 3.3->3.5 is not going to be as hard as 2.7->3.5.

Cheers,
Steve

>
>Paul
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Re: [Distutils] Microsoft Visual C++ Compiler for Python 2.7

2014-09-30 Thread Steve Dower
Olivier Grisel wrote:
> Thank you very Steve for pushing that installer out, this is very appreciated.
> 
> What is the story for project maintainers who want to also support Python 3.3+
> (for 32 bit and 64 bit python) for their project with binary wheels for 
> windows?
> At the moment it's possible to use the Windows SDK as documented here:
> 
> http://scikit-learn.org/dev/install.html#building-on-windows
> 
> However getting VC Express + Windows SDK is hard and slow to setup and cannot 
> be
> scripted in a CI environment.

It can be, but there are a few tricks involved...
 
> In the mean time, it's possible to use CI environments that already feature 
> all
> the necessary versions of the VC compilers and libraries such as appveyor.com,
> see this demo project:
> 
> https://github.com/ogrisel/python-appveyor-demo
> https://ci.appveyor.com/project/ogrisel/python-appveyor-demo

This is the best way to have it set up - create a base VM image for your CI 
environment manually and clone it. I believe all the major cloud providers 
support this, though using a CI specialist like Appveyor makes it even easier.

As far as the future story, it will probably be "move to 3.5 on VC14 as soon as 
possible". Internally, I'll be pushing for a CI-compatible installer for our 
build tools, which I expect will actually get quite a bit of traction right now.

Unfortunately, going back in time to do it for both VC9 and VC10 was not an 
option. We chose VC9 because 2.7 is where people are stuck, while migrating 
from 3.3->3.5 should not be as big an issue.

Cheers,
Steve

> --
> Olivier
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Re: [Distutils] Microsoft Visual C++ Compiler for Python 2.7

2014-09-30 Thread Paul Moore
On 30 September 2014 16:56, Olivier Grisel  wrote:
> What is the story for project maintainers who want to also support
> Python 3.3+ (for 32 bit and 64 bit python) for their project with
> binary wheels for windows?

It would be so easy at this point to ask "What's the chance of a
similarly packaged version of VS2010 for Python 3.2/3.3/3.4?" But I
really don't want Steve to get into any trouble with people saying
"now look what you've started" :-)

Paul
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Re: [Distutils] Microsoft Visual C++ Compiler for Python 2.7

2014-09-30 Thread Olivier Grisel
Thank you very Steve for pushing that installer out, this is very appreciated.

What is the story for project maintainers who want to also support
Python 3.3+ (for 32 bit and 64 bit python) for their project with
binary wheels for windows? At the moment it's possible to use the
Windows SDK as documented here:

  http://scikit-learn.org/dev/install.html#building-on-windows

However getting VC Express + Windows SDK is hard and slow to setup and
cannot be scripted in a CI environment.

In the mean time, it's possible to use CI environments that already
feature all the necessary versions of the VC compilers and libraries
such as appveyor.com, see this demo project:

https://github.com/ogrisel/python-appveyor-demo
https://ci.appveyor.com/project/ogrisel/python-appveyor-demo

-- 
Olivier
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Re: [Distutils] Microsoft Visual C++ Compiler for Python 2.7

2014-09-28 Thread Piotr Dobrogost
On Sep 27, 2014 12:32 AM, "Steve Dower"  wrote:
>
> I'll post this on the various other lists later, but I promised
distutils-sig first taste, especially since the discussion has been raging
for a few days (if you're following the setuptools repo, you may already
know, but let me take the podium for a few minutes anyway :) )
>
> Microsoft has released a compiler package for Python 2.7 to make it
easier for people to build and distribute their C extension modules on
Windows. The Microsoft Visual C++ Compiler for Python 2.7 (a.k.a. VC9) is
available from: http://aka.ms/vcpython27
>
> This package contains all the tools and headers required to build C
extension modules for Python 2.7 32-bit and 64-bit (note that some
extension modules require 3rd party dependencies such as OpenSSL or libxml2
that are not included). Other versions of Python built with Visual C++ 2008
are also supported, so "Python 2.7" is just advertising - it'll work fine
with 2.6 and 3.2

What that buys us in comparision to simply using VC 2008 Express?
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Re: [Distutils] Microsoft Visual C++ Compiler for Python 2.7

2014-09-27 Thread Steve Dower
It's free (VC Express 2008 is behind a pay wall these days)
It's small (85MB download, 300mb on installed)
It's a per-user install with no reboot required

If you have the permissions, time, and access for VC Express 2008, it gains you 
nothing. You're not the intended target audience (I thought I had that wording 
in the announcement, but I guess not).

Most people don't have or want Visual Studio installed on their machine, or 
need to install on a machine where they're not admin (think university student 
on a lab machine who needs Cython).

Cheers,
Steve

Top-posted from my Windows Phone

From: Piotr Dobrogost<mailto:p...@2014.dobrogost.net>
Sent: ‎9/‎27/‎2014 3:34
To: Steve Dower<mailto:steve.do...@microsoft.com>
Cc: distutils sig<mailto:distutils-sig@python.org>
Subject: Re: [Distutils] Microsoft Visual C++ Compiler for Python 2.7


On Sep 27, 2014 12:32 AM, "Steve Dower" 
mailto:steve.do...@microsoft.com>> wrote:
>
> I'll post this on the various other lists later, but I promised distutils-sig 
> first taste, especially since the discussion has been raging for a few days 
> (if you're following the setuptools repo, you may already know, but let me 
> take the podium for a few minutes anyway :) )
>
> Microsoft has released a compiler package for Python 2.7 to make it easier 
> for people to build and distribute their C extension modules on Windows. The 
> Microsoft Visual C++ Compiler for Python 2.7 (a.k.a. VC9) is available from: 
> http://aka.ms/vcpython27
>
> This package contains all the tools and headers required to build C extension 
> modules for Python 2.7 32-bit and 64-bit (note that some extension modules 
> require 3rd party dependencies such as OpenSSL or libxml2 that are not 
> included). Other versions of Python built with Visual C++ 2008 are also 
> supported, so "Python 2.7" is just advertising - it'll work fine with 2.6 and 
> 3.2

What that buys us in comparision to simply using VC 2008 Express?
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Re: [Distutils] Microsoft Visual C++ Compiler for Python 2.7

2014-09-27 Thread Vinay Sajip
> From: Steve Dower 
> Microsoft has released a compiler package for Python 2.7

Great. Thank you very much! Downloading it now :-)

Regards,

Vinay Sajip
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Re: [Distutils] Microsoft Visual C++ Compiler for Python 2.7

2014-09-26 Thread Nick Coghlan
On 27 September 2014 03:59, Steve Dower  wrote:
> I'll post this on the various other lists later, but I promised distutils-sig 
> first taste, especially since the discussion has been raging for a few days 
> (if you're following the setuptools repo, you may already know, but let me 
> take the podium for a few minutes anyway :) )
>
> Microsoft has released a compiler package for Python 2.7 to make it easier 
> for people to build and distribute their C extension modules on Windows. The 
> Microsoft Visual C++ Compiler for Python 2.7 (a.k.a. VC9) is available from: 
> http://aka.ms/vcpython27

Wonderful news Steve, thanks!

Cheers,
Nick.

-- 
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[Distutils] Microsoft Visual C++ Compiler for Python 2.7

2014-09-26 Thread Steve Dower
I'll post this on the various other lists later, but I promised distutils-sig 
first taste, especially since the discussion has been raging for a few days (if 
you're following the setuptools repo, you may already know, but let me take the 
podium for a few minutes anyway :) )

Microsoft has released a compiler package for Python 2.7 to make it easier for 
people to build and distribute their C extension modules on Windows. The 
Microsoft Visual C++ Compiler for Python 2.7 (a.k.a. VC9) is available from: 
http://aka.ms/vcpython27 

This package contains all the tools and headers required to build C extension 
modules for Python 2.7 32-bit and 64-bit (note that some extension modules 
require 3rd party dependencies such as OpenSSL or libxml2 that are not 
included). Other versions of Python built with Visual C++ 2008 are also 
supported, so "Python 2.7" is just advertising - it'll work fine with 2.6 and 
3.2.

You can install the package without requiring administrative privileges and, 
with the latest version of setuptools (from the source repo - there's no 
release yet), use tools such as pip, wheel, or a setup.py file to produce 
binaries on Windows.

The license prevents redistribution of the package itself (obviously you can do 
what you like with the binaries you produce) and IANAL but there should be no 
restriction on using this package on automated build systems under the usual 
one-developer rule (http://stackoverflow.com/a/779631/891 - in effect, the 
compilers are licensed to one user who happens to be using it on a remote 
machine).

My plan is to keep the download link stable so that automated scripts can 
reference and install the package. I have no idea how long that will last... :)

Our intent is to heavily focus on people using this package to produce wheels 
rather than trying to get this onto every user machine. Binary distribution is 
the way Windows has always worked and we want to encourage that, though we do 
also want people to be able to unblock themselves with these compilers.

I should also point out that VC9 is no longer supported by Microsoft. This 
means there won't be any improvements or bug fixes coming, and there's no 
official support offered. Feel free to contact me directly 
 if there are issues with the package.

Cheers,
Steve

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