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-rw-r--r--Lib/tempfile.py4
1 files changed, 2 insertions, 2 deletions
diff --git a/Lib/tempfile.py b/Lib/tempfile.py
index 82e5ec0..61c64e4 100644
--- a/Lib/tempfile.py
+++ b/Lib/tempfile.py
@@ -197,8 +197,8 @@ def _get_default_tempdir():
filename = _os.path.join(dir, name)
try:
fd = _os.open(filename, flags, 0o600)
- fp = _io.open(fd, 'w')
- fp.write('blat')
+ fp = _io.open(fd, 'wb')
+ fp.write(b'blat')
fp.close()
_os.unlink(filename)
del fp, fd