import time

import inspect

import sys,os

import traceback

class Logger(object):

"""docstring for MyLogger"""

def __init__(self, filename, *altfiles):

super(Logger, self).__init__()

altfiles = list(altfiles)

altfiles.insert(0,filename)

for name in altfiles:

try:

name = os.path.expandvars(os.path.expanduser(name))

dir = os.path.dirname(name)

if not os.path.exists(dir):

os.makedirs(dir)

self.logfile = open(name,"a")

print "Writing log to",name

break

except:

pass

else:

print >>sys.stderr,"Unable to open any of these files for logging:", self.altfiles

def __call__(self, *args, **kwargs):

caller = traceback.extract_stack()[-2]

if not args or kwargs:

trace = traceback.format_exc()

if not trace:

return

else:

args=[trace]

print >>self.logfile, time.asctime()

print >>self.logfile, "Log message from file "+caller[0]+" at line "+str(caller[1])+":"

for item in args:

print >>self.logfile, item

for key, value in kwargs.iteritems():

print >>self.logfile, key+":", value

print >>self.logfile, ""

self.logfile.flush()

os.fsync(self.logfile)

def DummyLogger(*args,**kwargs):

pass

import os,sys

log_file_name="Log_"+time.strftime("%Y_%m_%d")+".txt"

if "-d" in sys.argv or "--debug" in sys.argv:

log = Logger("$ENV_WATCHER_DIR/"+log_file_name, "$HOME/.envwatcher/"+log_file_name, "$HOME/EnvWatcher_"+log_file_name)

else:

log = DummyLogger