import re
# 将str_model 的内容更换为你想要转换的字段
str_model= """
qty_square_unit = fields.Float(string='平方数')
qty_box_free = fields.Float(string='自由库存/箱')
qty_pieces_free = fields.Float(string='自由库存片')
qty_square_free = fields.Float(string='自由库存/平方')
qty_box_reserved_sale = fields.Float(string='留货量/箱')
qty_box_reserved_sale_direct = fields.Float(string='开单未发量/箱')
qty_box_reserved_store = fields.Float(string='库存加工/箱')
qty_box_reserved_rework = fields.Float(string='返工量/箱')
qty_square_reserved_sale = fields.Float(string='留货量/平方')
qty_square_reserved_sale_direct = fields.Float(string='开单未发/平方')
qty_square_reserved_store = fields.Float(string='库存加工/平方')
qty_square_reserved_rework = fields.Float(string='返工量/平方')
"""
rex = r'(S*) = fields'
res = re.findall(rex,str_model)
# print(res)
str_tree = ''
for i in res:
tmp = '<field name="{}"/>
'.format(i)
str_tree+= tmp
print(str_tree)
执行完成后将输出结果复制到xml代码中上去即可