json.decoder.JSONDecodeError: Unexpected UTF-8 BOM (decode using utf-8-sig): line 1 column 1 (char 0

最近在读取jason文件时报错，原因是因为文件包含BOM字符，去掉BOM字符，

在content = f.read()代码下加上：

if content.startswith(u'\ufeff'):
      content = content.encode('utf8')[3:].decode('utf8')

with open('入库单列表.json') as f :
    content = f.read()
    if content.startswith(u'\ufeff'):
        content = content.encode('utf8')[3:].decode('utf8')
    # temp = json.load(f)
    print(content)