[Scons-users] SCons interfers with the constructor of io.TextIOWrapper when pywin32 is installed

[Mats Wichmann]

On 08/23/2018 11:12 AM, François Beaune wrote:
> Hi,
> 
> I'm using scons v3.0.1 under Windows 10:
> 
> SCons by Steven Knight et al.:
>         script: v3.0.1.74b2c53bc42290e911b334a6b44f187da698a668, 2017/11/14
> 13:16:53, by bdbaddog on hpmicrodog
>         engine: v3.0.1.74b2c53bc42290e911b334a6b44f187da698a668, 2017/11/14
> 13:16:53, by bdbaddog on hpmicrodog
>         engine path:
> ['c:\\python36\\lib\\site-packages\\scons-3.0.1\\SCons']
> Copyright (c) 2001 - 2017 The SCons Foundation
> 
> Under (and only under) Python 3.x, when the pywin32 Python module is
> installed, scons wraps a number of classes from the io module
> (io.BufferedReader, io.BufferedWriter, io.BufferedRWPair,
> io.BufferedRandom, io.TextIOWrapper) in order to run some custom code when
> they are constructed. This is done in SCons\Platform\win32.py lines 83-92.

I've run into a couple of problems with this wrapping as well.  One
actually made it into an issue:

https://github.com/SCons/scons/issues/3136

which is clearly not the same, but adds to wondering about this wrapping.