pyhton 获取windows文件关联的图标

import wx
from win32com.shell import shell, shellcon
from win32con import FILE_ATTRIBUTE_NORMAL
def extension_to_bitmap(extension):
"""dot is mandatory in extension"""

flags = shellcon.SHGFI_SMALLICON | \
shellcon.SHGFI_ICON | \
shellcon.SHGFI_USEFILEATTRIBUTES
retval, info = shell.SHGetFileInfo(extension,
FILE_ATTRIBUTE_NORMAL,
flags)
# non-zero on success
assert retval
hicon, iicon, attr, display_name, type_name = info
# Get the bitmap
icon = wx.EmptyIcon()
icon.SetHandle(hicon)
return wx.BitmapFromIcon(icon)