这个模块使用很简单，下面是示例：
file_name = '/path/to/xxx.JPG'
from libxmp import XMPFiles, consts
xmpfile = XMPFiles(file_path=file_name, open_forupdate=True)
xmp = xmpfile.get_xmp()
print(xmp.get_property("http://www.dji.com/drone-dji/1.0/", 'SelfData'))
print(xmp.does_property_exist('http://www.dji.com/drone-dji/1.0/', 'SelfData'))
print(xmp)
print(xmp.get_array_item('http://ns.adobe.com/exif/1.0/', 'ComponentsConfiguration',4))
print(xmp.count_array_items('http://ns.adobe.com/exif/1.0/', 'ComponentsConfiguration'))
print(xmp.get_property_datetime('http://ns.adobe.com/photoshop/1.0/', 'DateCreated'))
print(xmp.get_namespace_for_prefix('drone-dji'))
