@header_info decorator

header.py

import inspect
import os
import os.path
import datetime

def header_info(func):
    def _header(*args, **kwargs):
        exec_path = inspect.currentframe().f_back.f_code.co_filename
        print "# Run '%s' function in %s" % (func.__name__, os.path.abspath(exec_path))
        print "# Host: %s" % (os.uname()[1])
        now = datetime.datetime.now()
        print "# Created at %s" % (now.strftime('%Y/%m/%d %H:%M:%S'))
        return func(*args, **kwargs)
    return _header

@header_info
def run_algorithm_or_experimets():
    result = exec_command(...)
    print "%s,%s" % (result[1], result[2])
    ...

# Run 'run_algorithm_or_experiments' function in /Users/yukke/dev/project/scripts/test_analysis.py
# Host: aichan
# Created at 2015/07/04 16:27:30
A,921.000
B,900.002
C,900.002
....