Enable large file support on Win32 systems.

Curious:  the MS docs say stati64 etc are supported even on Win95, but
Win95 doesn't support a filesystem that allows partitions > 2 Gb.

test_largefile:  This was opening its test file in text mode.  I have no
idea how that worked under Win64, but it sure needs binary mode on Win98.
BTW, on Win98 test_largefile runs quickly (under a second).

1 files changed, 4 insertions, 4 deletions

diff --git a/Lib/test/test_largefile.py b/Lib/test/test_largefile.py
index 54fd274..3f3b8f1 100644
--- a/Lib/test/test_largefile.py
+++ b/Lib/test/test_largefile.py
@@ -12,7 +12,7 @@ import os, struct, stat, sys
 
 
 # only run if the current system support large files
-f = open(test_support.TESTFN, 'w')
+f = open(test_support.TESTFN, 'wb')
 try:
     # 2**31 == 2147483648
     f.seek(2147483649L)
@@ -58,13 +58,13 @@ def expect(got_this, expect_this):
 
 if test_support.verbose:
     print 'create large file via seek (may be sparse file) ...'
-f = open(name, 'w')
+f = open(name, 'wb')
 f.seek(size)
 f.write('a')
 f.flush()
-expect(os.fstat(f.fileno())[stat.ST_SIZE], size+1)
 if test_support.verbose:
     print 'check file size with os.fstat'
+expect(os.fstat(f.fileno())[stat.ST_SIZE], size+1)
 f.close()
 if test_support.verbose:
     print 'check file size with os.stat'
@@ -72,7 +72,7 @@ expect(os.stat(name)[stat.ST_SIZE], size+1)
 
 if test_support.verbose:
     print 'play around with seek() and read() with the built largefile'
-f = open(name, 'r')
+f = open(name, 'rb')
 expect(f.tell(), 0)
 expect(f.read(1), '\000')
 expect(f.tell(), 1)