小编Tro*_*aul的帖子

我有一个我正在尝试构建的查询.查询似乎在部分工作,查询的单独部分返回正确数量的元素.但是,组合查询返回空结果集,这是不正确的.

注意:我知道查询1和2不需要and_,但我想确保and_正如我预期的那样工作.

查询1:

• SQLAlchemy查询

  session.query(Lobby).filter(
      and_(
          Lobby.id == spectator_table.c.lobby_id,
          spectator_table.c.player_id == player.steamid
      )
  ).all()
  

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• 生成的SQL

  SELECT lobby.id AS lobby_id, lobby.name AS lobby_name, lobby.owner_id AS lobby_owner_id
  FROM lobby, spectator
  WHERE lobby.id = spectator.lobby_id AND spectator.player_id = ?
  

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查询2:

• SQLAlchemy查询

  session.query(Lobby).filter(
      and_(
          Lobby.id == Team.lobby_id,
          LobbyPlayer.team_id == Team.id,
          LobbyPlayer.player_id == player.steamid
      )
  ).all()
  

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• 生成的SQL

  SELECT lobby.id AS lobby_id, lobby.name AS lobby_name, lobby.owner_id AS lobby_owner_id
  FROM lobby, team, lobby_player
  WHERE lobby.id = team.lobby_id AND lobby_player.team_id = team.id AND lobby_player.player_id = ? …

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我有包含许多UTF-8 xml文件的zip存档.这些文件主要包含英文标签和文本,但有些标签包含非英文文本.我打开zip文件并解析其中的xml文件没有问题,但是非英文文本丢失了它的编码.

当在Notepad ++中提取并打开xml文件时,非英语文本如下所示:

???? ?????????? ? ??????? ?? ????????? ?? ?????????? ????????????? ???????? ????? (????) - 176.100.

当它被Python(在linux盒子上)提取和读取时,文本看起来像:

ÐÑÑÑ ÐºÐ°ÑбованÑа к доллаÑÑ Ð½Ðµ изменилÑÑ Ð½Ð° УкÑаинÑкой ÐежбанковÑкой ÐалÑÑной ÐиÑже (УÐÐÐ) - 176.100.

我的代码看起来像:

def parse(self, fp):
    # open/decompress zip file
    with zipfile.ZipFile(fp, 'r') as f:
        # get all files in zip
        comp_files = f.namelist()
        for comp_file in comp_files:
            cfp = f.open(comp_file, 'r')
            # parse xml
            tree = ElementTree.parse(cfp)
            ...parsing...

我尝试解码/编码来自cfp的文本,并用codecs.EncodedFile()和utf_8和utf_8_sig的输入编码包装,没有任何变化.我该怎么做来修复非英文文本？