通过 Python 运行 Windows CMD 命令
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Run Windows CMD commands via Python
提问by Felix Dombek
I want to create a folder with symlinks to all files in a large directory structure. I used subprocess.call(["cmd", "/C", "mklink", linkname, filename])first, and it worked, but opened a new command windows for each symlink.
我想创建一个文件夹，其中包含指向大型目录结构中所有文件的符号链接。我subprocess.call(["cmd", "/C", "mklink", linkname, filename])首先使用，并且有效，但是为每个符号链接打开了一个新的命令窗口。
I couldn't figure out how to run the command in the background without a window popping up, so I'm now trying to keep one CMD window open and run commands there via stdin:
我不知道如何在不弹出窗口的情况下在后台运行命令，所以我现在试图保持一个 CMD 窗口打开并通过标准输入在那里运行命令：
def makelink(fullname, targetfolder, cmdprocess):
linkname = os.path.join(targetfolder, re.sub(r"[\/\\:\*\?\"\<\>\|]", "-", fullname))
if not os.path.exists(linkname):
try:
os.remove(linkname)
print("Invalid symlink removed:", linkname)
except: pass
if not os.path.exists(linkname):
cmdprocess.stdin.write("mklink " + linkname + " " + fullname + "\r\n")
where
在哪里
cmdprocess = subprocess.Popen("cmd",
stdin = subprocess.PIPE,
stdout = subprocess.PIPE,
stderr = subprocess.PIPE)
However, I now get this error:
但是，我现在收到此错误：
File "mypythonfile.py", line 181, in makelink
cmdprocess.stdin.write("mklink " + linkname + " " + fullname + "\r\n")
TypeError: 'str' does not support the buffer interface
What does this mean and how can I solve this?
这是什么意思，我该如何解决？
采纳答案by Greg Hewgill
Python strings are Unicode, but the pipe you're writing to only supports bytes. Try:
Python 字符串是 Unicode，但您写入的管道仅支持字节。尝试：
cmdprocess.stdin.write(("mklink " + linkname + " " + fullname + "\r\n").encode("utf-8"))
