Python 模块子进程没有属性“STARTF_USESHOWWINDOW”
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Module subprocess has no attribute 'STARTF_USESHOWWINDOW'
提问by Rhys
Hi Stack Overflow users,
嗨堆栈溢出用户，
I've encountered a frustrating problem, can't find the answer to it.
我遇到了一个令人沮丧的问题，找不到答案。
Yesterday I was trying to find a way to HIDE a subprocess.Popen. So for example, if i was opening the cmd. I would like it to be hidden, permanently.
昨天我试图找到一种隐藏 subprocess.Popen 的方法。例如，如果我打开 cmd。我希望它被永久隐藏。
I found this code:
我找到了这个代码：
kwargs = {}
if subprocess.mswindows:
su = subprocess.STARTUPINFO()
su.dwFlags |= subprocess.STARTF_USESHOWWINDOW
su.wShowWindow = subprocess.SW_HIDE
kwargs['startupinfo'] = su
subprocess.Popen("cmd.exe", **kwargs)
It worked like a charm!
它就像一个魅力！
But today, for reasons I don't need to get into, I had to reinstall python 3 (32bit)
但是今天，由于我不需要进入的原因，我不得不重新安装python 3（32位）
Now, when I run my program I get this error:
现在，当我运行我的程序时，出现此错误：
Traceback (most recent call last):
File "C:\Python31\hello.py", line 7, in <module>
su.dwFlags |= subprocess.STARTF_USESHOWWINDOW
AttributeError: 'module' object has no attribute 'STARTF_USESHOWWINDOW'
I'm using 32bit, python3.1.3 ... just like before.
我正在使用 32 位，python3.1.3 ......就像以前一样。
If you have any clues/alternatives PLEASE post, thanks.
如果您有任何线索/替代方案，请发布，谢谢。
NOTE: I am looking for a SHORT method to hide the app, not like two pages of code please
注意：我正在寻找一种简短的方法来隐藏应用程序，而不是像两页代码那样
采纳答案by Rhys
python 3.1.3 > and 2.7
python 3.1.3 > 和 2.7
import subprocess
import sys
params = dict()
startupinfo = subprocess.STARTUPINFO()
startupinfo.dwFlags |= subprocess.STARTF_USESHOWWINDOW
params['startupinfo'] = startupinfo
p = subprocess.Popen("cmd.exe", **params)
回答by TryPyPy
I had misread the question, sorry. You might have something shadowing either the subprocessor _subprocessmodule. If it's an install glitch, try removing and reinstalling Python 3.
我误读了这个问题，抱歉。您可能有一些东西遮蔽了subprocess或_subprocess模块。如果是安装故障，请尝试删除并重新安装 Python 3。
回答by Lennart Regebro
Either the reinstall went wrong or you created a module called subprocess.py and forgot it. :)
要么重新安装出错，要么您创建了一个名为 subprocess.py 的模块并忘记了它。:)
Try the following:
请尝试以下操作：
import subprocess
print(subprocess.__file__)
That should give you the path to your current Windows installations subprocess module, ie.
这应该为您提供当前 Windows 安装子进程模块的路径，即。
C:\Python31\Lib\subprocess.pyc
If it instead says
如果它改为说
C:\PYthon31\subprocess.py
It's importing a module you created. (You may want to consider notputting your Python files in the Python directory, as in your example above. Having a separate directory for each project is a better idea, and might mean you don't have to install Python so often. ;) )
它正在导入您创建的模块。（您可能要考虑不要将 Python 文件放在 Python 目录中，如上面的示例所示。为每个项目设置一个单独的目录是一个更好的主意，这可能意味着您不必经常安装 Python。;） )
回答by ladivadesigne
You can recreate or check the described problem in your Python installation:
您可以在 Python 安装中重新创建或检查所描述的问题：
import subprocess
subprocess.STARTF_USESHOWWINDOW
If the problem persists you should receive error message ending with line like this:
如果问题仍然存在，您应该收到以这样的行结尾的错误消息：
AttributeError: 'module' object has no attribute 'STARTF_USESHOWWINDOW'
Possible solution of the problem is to import in your code old library by this way:
问题的可能解决方案是通过这种方式导入您的代码旧库：
import subprocess
import _subprocess
And later use it only for these two problematic properties:
稍后仅将其用于这两个有问题的属性：
# do not show window
info = subprocess.STARTUPINFO()
info.dwFlags = _subprocess.STARTF_USESHOWWINDOW
info.wShowWindow = _subprocess.SW_HIDE
That's it. Simple and functional - without any uninstall/install of Python or reverting back to the old builds.
就是这样。简单实用 - 无需卸载/安装 Python 或恢复到旧版本。
