Question

当在msys2-Python（3.4.3）中时，我怎么能从msys文件系统获取某些文件的本机Windows路径？

我想为本机Windows应用程序编写配置文件，因此不考虑msys路径重写。

有一个解决方案，但我不喜欢它，因为我必须将未知路径提供给shell：

path = "/home/user/workspace"
output = subprocess.check_output( 'cmd //c echo ' + path, shell = True )

返回C:/msys64/home/user/workspace。

这个问题并不是Convert POSIX->WIN path, in Cygwin Python, w/o calling cygpath的重复，因为它与 msys2 有关。

Answer 1

运行cygpath -w NAME。 cygpath是/usr/bin中的命令行实用程序，您可以像运行任何其他命令行实用程序一样运行。输出将是与您传递的NAME参数对应的Windows样式路径。

Answer 2

根据这个伟大的答案https://stackoverflow.com/a/38471976/5892524，这里重写了相同的代码，以便在msys2中使用。

import ctypes
import sys

xunicode = str if sys.version_info[0] > 2 else eval("unicode")

# If running under Msys2 Python, just use DLL name
# If running under non-Msys2 Windows Python, use full path to msys-2.0.dll
# Note Python and msys-2.0.dll must match bitness (i.e. 32-bit Python must
# use 32-bit msys-2.0.dll, 64-bit Python must use 64-bit msys-2.0.dll.)
msys = ctypes.cdll.LoadLibrary("msys-2.0.dll")
msys_create_path = msys.cygwin_create_path
msys_create_path.restype = ctypes.c_void_p
msys_create_path.argtypes = [ctypes.c_int32, ctypes.c_void_p]

# Initialise the msys DLL. This step should only be done if using
# non-msys Python. If you are using msys Python don't do this because
# it has already been done for you.
if sys.platform != "msys":
    msys_dll_init = msys.msys_dll_init
    msys_dll_init.restype = None
    msys_dll_init.argtypes = []
    msys_dll_init()

free = msys.free
free.restype = None
free.argtypes = [ctypes.c_void_p]

CCP_POSIX_TO_WIN_A = 0
CCP_POSIX_TO_WIN_W = 1
CCP_WIN_A_TO_POSIX = 2
CCP_WIN_W_TO_POSIX = 3

def win2posix(path):
    """Convert a Windows path to a msys path"""
    result = msys_create_path(CCP_WIN_W_TO_POSIX, xunicode(path))
    if result is None:
        raise Exception("msys_create_path failed")
    value = ctypes.cast(result, ctypes.c_char_p).value
    free(result)
    return value

def posix2win(path):
    """Convert a msys path to a Windows path"""
    result = msys_create_path(CCP_POSIX_TO_WIN_W, str(path))
    if result is None:
        raise Exception("msys_create_path failed")
    value = ctypes.cast(result, ctypes.c_wchar_p).value
    free(result)
    return value

如何在msys python中获取本机Windows路径？

2 个答案: