添加后删除 BOM 字符<?xml version="1.0" encoding="UTF-8"?>使用 Python 到 SQL 生成的 XML 文件

Question

["

def append_prologue(file, orgID, schema):
    timestamp = datetime.today().strftime('%Y%m%d')
    new_name = f'{orgID}_000_2022TSDS_{timestamp}1500_' + schema
    new_file = file.parent.parent / 'results/with_prologue' / new_name
    if new_file.exists():
        print(f'{new_file.name} already exists')
    with open(file, 'r') as original:
        data = original.read()
        data = data[3:] #how the original writer dealt with the issue
    with open(new_file, 'w+') as modified:
        modified.write("<?xml version=\"1.0\" encoding=\"UTF-8\"?>" + data)
    return

Answer 1

编解码器包应该可以解决问题。

StreamReader = codecs.getreader('utf-8-sig')
with StreamReader(open(file, 'rb')) as original:
    ...

或更短的版本：

with codecs.open(file, 'r', 'utf-8-sig') as original:
    ...