python以本机格式打印CQL输出

我有一个python程序，它试图使用python cassandra驱动程序连接到apache cassandra并执行一些查询。我得到的结果集不是列表就是字典。但是，我希望输出以本机cql输出格式（列和行）打印回用户

像这样,

 keyspace | durable_writes | name    | strategy_class | strategy_options
----------+----------------+---------+----------------+---------------------    -------
  history |           True | history | SimpleStrategy | {"replication_factor":"1"}
  ks_info |           True | ks_info | SimpleStrategy |{"replication_factor":"1"}

(2 rows)

是否有一个模块我可以用来实现这一点？我使用以下代码来测试

from cassandra.cluster import Cluster
from cassandra.auth import PlainTextAuthProvider
from cassandra.query import dict_factory

def fireCql(cqlStatement):

auth_provider = PlainTextAuthProvider(
        username='myusername', password='myPassWord')
cluster = Cluster(['cassandra.myhostname.com'],auth_provider=auth_provider)

session = cluster.connect('my_keyspace')
session.row_factory = dict_factory

rows = session.execute(cqlStatement)

return rows

---

Python:2.7

我不相信这是Python驱动程序本身的一个特性。如果您认为很多人会想要这个，您可以向python驱动程序组请求它

但是，下面是Cassandra用来生成格式的代码。您可以使用它作为实现逻辑的基础，以解析您的结果并根据需要设置格式

从

def print_formatted_result(self, formatted_names, formatted_values):
    # determine column widths
    widths = [n.displaywidth for n in formatted_names]
    if formatted_values is not None:
        for fmtrow in formatted_values:
            for num, col in enumerate(fmtrow):
                widths[num] = max(widths[num], col.displaywidth)

    # print header
    header = ' | '.join(hdr.ljust(w, color=self.color) for (hdr, w) in zip(formatted_names, widths))
    self.writeresult(' ' + header.rstrip())
    self.writeresult('-%s-' % '-+-'.join('-' * w for w in widths))

    # stop if there are no rows
    if formatted_values is None:
        self.writeresult("")
        return

    # print row data
    for row in formatted_values:
        line = ' | '.join(col.rjust(w, color=self.color) for (col, w) in zip(row, widths))
        self.writeresult(' ' + line)

    self.writeresult("")