[Shootout-list] reverse-complement (new) benchmark: Python program

[Tim Rowe]

Here is a rudimentary stab at this (is this the right way to submit?)

Tested under Python 2.4, but should work under any reasonably recent version.

------------------------------- snip -------------------------------

from string import maketrans, translate, join
from sys import stdin

trans = maketrans("acgttumrwsykvhdbnACGTTUMRWSYKVHDBN", "TGCAAAKYWSRMBDHVNTGCAAAKYWSRMBDHVN")
linelength = 60

def printRevBlock(block):
    blockList = list(block)
    blockList.reverse()
    blockList = join(blockList, "")
    while len(blockList) > linelength:
        print blockList[:linelength]
        blockList = blockList[linelength:]
    if blockList:
        print blockList

infile = open("comp_in.txt")
block = ""
for line in stdin.readlines():
    if line[0] == ">":
        if block:
            printRevBlock(block)
            block = ""
        print line.strip()
    else:
        block += translate(line.strip(), trans)
if block:
    printRevBlock(block)

------------------------------- snip -------------------------------
Regards,

Tim
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