Python将输出行保存到新文件

Question

I get some lines (a record) from log file, but I didn't know how to write function inside it to create a new log file whose name contains the current date in which to store those lines. I'm new python, so I hope you can give me solution. Thanks

 def OnlyRecent(line):
    if  time.strptime(line.split("[")[0].strip(),"%a %b %d %H:%M:%S %Y")> time.gmtime(time.time()-(60*60*24*7)):
        return True
    return False
  for line in f:
    if OnlyRecent(line):
       print line  //store print lines into new log file.  20120911.log

Answer 1

You can redirect print output to a file:

log_file = open('mylog.log', 'w')

print>>log_file, 'hello'

log_file.close()

Answer 2

outside your loop

filename = time.strftime('%Y%m%d') + '.log'
f = open(filename, 'w')

do your loop here, and write each line with

f.write(line)

if you don't have a new line character in your line variable, do

f.write(line +'\n')

after exiting your loop

f.close()