New submission from Segev Finer:

We are getting:

Warning C4005   'HAVE_MEMMOVE': macro redefinition      _elementtree    
c:\users\segev\prj\python\cpython\modules\expat\winconfig.h     34      
Warning C4267   '=': conversion from 'size_t' to 'unsigned char', possible loss 
of data _elementtree    
c:\users\segev\prj\python\cpython\modules\expat\siphash.h       316     
Warning C4996   'getenv': This function or variable may be unsafe. Consider 
using _dupenv_s instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS. 
See online help for details.  _elementtree    
C:\Users\Segev\prj\python\cpython\Modules\expat\xmlparse.c      796     
Warning C4005   'HAVE_MEMMOVE': macro redefinition      _elementtree    
c:\users\segev\prj\python\cpython\modules\expat\winconfig.h     34      
Warning C4005   'HAVE_MEMMOVE': macro redefinition      _elementtree    
c:\users\segev\prj\python\cpython\modules\expat\winconfig.h     34

And in 64-bit:

c:\users\segev\prj\python\cpython\modules\expat\siphash.h(201): warning C4244: 
'initializing': conversion from '__int64' to 'char', possible loss of data

I'm not sure how many Python versions this affects.

----------
components: Extension Modules, Windows
messages: 296590
nosy: Segev Finer, paul.moore, steve.dower, tim.golden, zach.ware
priority: normal
severity: normal
status: open
title: [Windows] Warnings in elementtree due to new expat
versions: Python 3.7

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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue30726>
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