from lxml import etree


svg_namespace = "http://www.w3.org/2000/svg"

svg_tree = etree.parse("test_svg.svg")

svg_root = svg_tree.getroot()

g_elements = svg_root.findall(".//{%s}g" % svg_namespace)

for g in g_elements:
    # 处理每个g元素
    print("g元素：")
    print(etree.tostring(g))