Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > comp.lang.python > #30744

sum function

Newsgroups comp.lang.python
Date 2012-10-04 13:52 -0700
Message-ID <7c7beccb-72e4-4cfb-958d-4a7235076fb3@googlegroups.com> (permalink)
Subject sum function
From mike20007@gmail.com

Show all headers | View raw


Hi All,

I am new to python and am getting the data from hbase. 
I am trying to do sum on the column as below


scanner = client.scannerOpenWithStop("tab", "10", "1000", ["cf:col1"])
total = 0.0
r = client.scannerGet(scanner)
while r:
  for k in (r[0].columns):
    total += float(r[0].columns[k].value)
  r = client.scannerGet(scanner)

print total

Do you know of better (faster) way to do sum?

Any thoughts please?

Thanks

Back to comp.lang.python | Previous | NextNext in thread | Find similar | Unroll thread


Thread

sum function mike20007@gmail.com - 2012-10-04 13:52 -0700
  Re: sum function Ian Kelly <ian.g.kelly@gmail.com> - 2012-10-04 15:04 -0600
    Re: sum function Mike <mike20007@gmail.com> - 2012-10-04 14:31 -0700
    Re: sum function Mike <mike20007@gmail.com> - 2012-10-04 14:31 -0700
  Re: sum function Ian Kelly <ian.g.kelly@gmail.com> - 2012-10-04 15:05 -0600
    Re: sum function Mike <mike20007@gmail.com> - 2012-10-04 14:29 -0700
      Re: sum function Dave Angel <d@davea.name> - 2012-10-04 17:39 -0400
        Re: sum function Mike <mike20007@gmail.com> - 2012-10-04 17:40 -0700
          Re: sum function Ian Kelly <ian.g.kelly@gmail.com> - 2012-10-04 18:59 -0600
            Re: sum function Mike <mike20007@gmail.com> - 2012-10-04 19:01 -0700
              Re: sum function Ramchandra Apte <maniandram01@gmail.com> - 2012-10-05 01:31 -0700
              Re: sum function Ramchandra Apte <maniandram01@gmail.com> - 2012-10-05 01:31 -0700
            Re: sum function Mike <mike20007@gmail.com> - 2012-10-04 19:01 -0700
        Re: sum function Mike <mike20007@gmail.com> - 2012-10-04 17:40 -0700
      Re: sum function Chris Angelico <rosuav@gmail.com> - 2012-10-05 07:34 +1000
    Re: sum function Mike <mike20007@gmail.com> - 2012-10-04 14:29 -0700
  Re: sum function Mike <mike20007@gmail.com> - 2012-10-05 06:39 -0700
    Re: sum function Ramchandra Apte <maniandram01@gmail.com> - 2012-10-05 06:41 -0700
      Re: sum function Mike <mike20007@gmail.com> - 2012-10-05 06:47 -0700
        Re: sum function Terry Reedy <tjreedy@udel.edu> - 2012-10-05 14:52 -0400
          Re: sum function Mike <mike20007@gmail.com> - 2012-10-05 13:09 -0700
            Re: sum function Dave Angel <d@davea.name> - 2012-10-05 16:26 -0400
              Re: sum function Ramchandra Apte <maniandram01@gmail.com> - 2012-10-06 05:38 -0700
          Re: sum function Mike <mike20007@gmail.com> - 2012-10-05 13:09 -0700
    Re: sum function Ian Kelly <ian.g.kelly@gmail.com> - 2012-10-05 13:29 -0600
  Re: sum function Mike <mike20007@gmail.com> - 2012-10-05 13:03 -0700
    Re: sum function Ian Kelly <ian.g.kelly@gmail.com> - 2012-10-05 14:10 -0600
      Re: sum function Mike <mike20007@gmail.com> - 2012-10-05 14:19 -0700

csiph-web