Hirokazu Yamamoto <ocean-c...@m2.ccsnet.ne.jp> added the comment:
With following patch for investigation, (release30-maint)
Index: Lib/io.py
===================================================================
--- Lib/io.py (revision 70450)
+++ Lib/io.py (working copy)
@@ -57,6 +57,7 @@
import os
import abc
+import sys
import codecs
import _fileio
# Import _thread instead of threading to reduce startup cost
@@ -931,6 +932,7 @@
while True:
# Read until EOF or until read() would block.
chunk = self.raw.read()
+ print("============>", repr(chunk), file=sys.stderr)
if chunk in empty_values:
nodata_val = chunk
break
///////////////////////
I got this result.
>>> sys.stdin.read()
abc
^Z
============> b'abc\n'
^Z
============> b''
'abc\n'
To get empty chunk, we need to hit CTRL-Z twice.
----------
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue5505>
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