在python中从stdin读取时出现错误的管道文件描述符 [英] Bad pipe filedescriptor when reading from stdin in python
问题描述
重复的这个问题.投票关闭.
Duplicate of this question. Vote to close.
在Windows命令行中考虑这一点.
Consider this at the windows commandline.
scriptA.py | scriptB.py
在scriptA.py中:
In scriptA.py:
sys.stdout.write( "hello" )
在scriptB.py中:
In scriptB.py:
print sys.stdin.read()
这会产生以下错误:
c:\> scriptA.py | scriptB.py
close failed: [Errno 22] Invalid argument
Traceback (most recent call last):
File "c:\scriptB.py", line 20, in <module>
print sys.stdin.read()
IOError: [Errno 9] Bad file descriptor
关闭失败"消息似乎来自执行scriptA.py.
The "close failed" message seems to come from execution of scriptA.py.
是否使用sys.stdin.read(),sys.stdin.read(1),sys.stdin.readlines()等都没关系.
It doesn't matter if I use sys.stdin.read(), sys.stdin.read(1), sys.stdin.readlines() etc etc.
怎么了?
重复的这个问题.投票关闭.
Duplicate of this question. Vote to close.
推荐答案
从文件关联开始时,似乎stdin/stdout重定向不起作用. 这不是特定于python的问题,而是由win32 cmd.exe引起的问题.
It seems that stdin/stdout redirect does not work when starting from a file association. This is not specific to python, but a problem caused by win32 cmd.exe.
请参阅: http://mail.python. org/pipermail/python-bugs-list/2004-August/024920.html
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