Skel.py
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Intro
Some skeleton Python scripts...
Also check out - Python Skeleton Scripts - and - Implementing a Standard Library
Using Enums
#!/usr/bin/env python27
#
# @(#) [1.0.01] skel.py 2012-02-04
#
#
# NAME
# skel.py - Skeleton python script
#
# SYNOPSIS
# skel.py [-dv]
#
# PARAMETERS
# See __doc__ below
#
# DESCRIPTION
# ...
#
# RETURNS
# 0 for successful completion, 1 for any error
#
# FILES
# ...
#
#--------------------------------------------------------------------------
"""
Usage:
$ skel.py [-dv] -apn 10y
$ skel.py [-dv] -o # ...
Parameters:
-a ...
-p ...
-n 10 No of ...
-o ...
-d Debug
-v Verbose
"""
#--------------------------------------------------------------------------
import os
import re
import sys
import time
import getopt
import random
import pickle
import pprint
import logging
import urllib
from datetime import datetime
#--------------------------------------------------------------------------
__version__ = "1.2.0"
__id__ = "@(#) skel.py [%s] 2011-11-01"
verbose_flg = False
debug_level = 0
table_name = "people"
DSERVER_PORT = 9570
MAX_REQUESTS = 200
lf = None
log = None
targets = {
'dev' : { 'host': 'ldap-dev', 'port' : 2389, 'type' : 'OracleOID' },
'prod' : { 'host': 'openldap', 'port' : 2389, 'type' : 'OpenLDAP' },
}
LOG_DIR = "/tmp"
home_dir = None
p_crlf = re.compile(r'[\r\n]*')
pp = pprint.PrettyPrinter(indent=3)
#==========================================================================
class Enum(set):
pass
#--------------------------------------------------------------------
def __getattr__(self, name):
if name in self:
return name
raise AttributeError
#==========================================================================
class Data:
TotalCount = 0
#--------------------------------------------------------------------
@classmethod
def count_row(cls):
cls.TotalCount += 1
#--------------------------------------------------------------------
def __init__(self, row):
Data.count_row()
cols = row.split(',')
self.One = cols[0]
self.Two = cols[1]
#==========================================================================
def INFO(msg):
if log: log.info(' ' + msg)
if verbose_flg: print "[skel] %s" % msg
#--------------------------------------------------------------------------
def ERROR(msg):
if log: log.error(msg)
sys.stderr.write('[skel] %s\n' % msg)
#--------------------------------------------------------------------------
def WARNING(msg):
if log: log.warning('*****' + msg + '*****')
if verbose_flg: print "[skel] %s" % msg
#--------------------------------------------------------------------------
def init_logging(fname=None):
global lf
global log
pid = os.getpid()
if debug_level > 0: print "[skel] My PID is %d" % pid
if not fname:
fname = '%s/%s.log' % (LOG_DIR, 'skel')
log = logging.getLogger('skel')
hdlr = logging.FileHandler(fname)
fmtr = logging.Formatter('%(asctime)s %(levelname)s %(message)s')
hdlr.setFormatter(fmtr)
log.addHandler(hdlr)
log.setLevel(logging.INFO)
INFO("===== Started processing %s" % ('=' * 50))
cnt = 0
#=========================================================================
def the_time():
t = float(ref_time(False)) * 0.001
return t
#------------------------------------------------------------------------------
t_reference = None
def ref_time(flg):
global t_reference
t_now = datetime.now()
if (flg):
t_reference = t_now
t = 0
else:
t_delta = t_now - t_reference
t = ((t_delta.seconds * 1000000) + t_delta.microseconds)/1000.0
return t
#=========================================================================
# And here is the real work...
def csv_reader(fname):
csv_data = []
f_in = open(fname, "rb")
reader = csv.reader(f_in)
cnt = 0
total = 0
for row in reader:
cnt += 1
if cnt < 2: continue # Skip headings
data = Data(row)
if data.TotalCount < 1000: continue
total += data.TotalCount
# print data
csv_data.append(data)
f_in.close() # Explicitly close the file *NOW*
no_lines = len(csv_data)
print "Read %d data items..." % no_lines
print " -> Total data %d" % total
return csv_data
#------------------------------------------------------------------------------
def do_work(fname):
INFO("[do_work]")
fname_in = "%s.log" % fname
fname_out = "%s.dat" % fname
try:
f_in = open(fname_in, 'r')
except IOError, msg:
sys.stderr.write(fname_in + ': cannot open: ' + `msg` + '\n')
sys.exit(1)
try:
f_out = open(fname_out, 'a+')
except IOError, msg:
sys.stderr.write(fname_out + ': cannot open: ' + `msg` + '\n')
sys.exit(1)
while True:
line = f_in.readline()
if not line: break
# Truncate EoL markers from end of line
line = p_crlf.sub('', line) # or 'line = line[:-1]'
data = Data(line)
f_out.write("[%s]\n" % (line, ))
f_in.close()
f_out.close()
#=========================================================================
def usage():
print __doc__
#-------------------------------------------------------------------------
def main(argv):
global verbose_flg
global debug_level
global target
global home_dir
try:
home_dir = os.environ['HOME']
except:
print "Set HOME environment variable and re-run"
sys.exit(0)
Modes = Enum(["Info", "Parse", ])
mode = Modes.Info
filename = "test"
try:
opts, args = getopt.getopt(argv, "dD:f:hvV?",
("debug", "debug-level=", "file=", "help", "verbose", "version"))
except getopt.error, msg:
usage()
return 1
for opt, arg in opts:
if opt in ("-?", "-h", "--help"):
usage()
return 0
elif opt in ('-d', '--debug'):
debug_level += 1
elif opt in ('-D', '--debug-level'):
debug_level = int(arg)
elif opt in ('-f', '--file'):
mode = Modes.Parse
filename = arg
elif opt in ('-v', '--verbose'):
verbose_flg = True
elif opt in ('-v', '--version'):
print "[skel] Version: %s" % __version__
return 1
else:
usage()
return 1
sys.stderr.write("[skel] Working directory is %s\n" % os.getcwd())
if (debug_level > 0): sys.stderr.write("[skel] Debugging level set to %d\n" % debug_level)
sys.stderr.flush()
init_logging()
if mode == Modes.Info:
INFO('Info')
elif mode == Modes.Parse:
INFO('Parsing')
do_work(filename)
else:
INFO('Nothing to do')
return 0
#--------------------------------------------------------------------------
if __name__ == '__main__' or __name__ == sys.argv[0]:
try:
sys.exit(main(sys.argv[1:]))
except KeyboardInterrupt, e:
print "[skel] Interrupted!"
#--------------------------------------------------------------------------
"""
Revision History:
Date Who Description
-------- --- ------------------------------------------------------------
20031014 plh Initial implementation
20111101 plh Add in Enums for modal behaviour
Problems to fix:
To Do:
Issues:
"""
Version Incorporating Python Logging
#!/usr/bin/env python
#
# Purpose: Skeleton Python script
#
#
#-------------------------------------------------------------------------------
"""
Skeleton Python script
...
"""
#-------------------------------------------------------------------------------
import os
import re
import sys
import getopt
import logging
#-------------------------------------------------------------------------------
from datetime import datetime
#-------------------------------------------------------------------------------
__version__ = "1.0.0"
__id__ = "@(#) skel.py [%s] 2008-05-03"
debug_level = 0
verbose_flg = False
LOGFILE = "log/skel.log"
PIDFILE = "DATA/skel.pid"
tables = []
log = None
pid = None
#===============================================================================
def INFO(msg):
if log: log.info(' ' + msg)
if verbose_flg: print "[skel] %s" % msg
#-------------------------------------------------------------------------------
def ERROR(msg):
if log: log.error(msg)
sys.stderr.write('[skel] %s\n' % msg)
#-------------------------------------------------------------------------------
def WARNING(msg):
if log: log.warning('*****' + msg + '*****')
if verbose_flg: print "[skel] %s" % msg
#===============================================================================
def init():
global log
global pid
pid = os.getpid()
log = logging.getLogger('skel')
hdlr = logging.FileHandler(LOGFILE)
fmtr = logging.Formatter('%(asctime)s %(levelname)s %(message)s')
hdlr.setFormatter(fmtr)
log.addHandler(hdlr)
log.setLevel(logging.INFO)
INFO("Started processing with PID %d" % pid)
if (not verbose_flg):
INFO("PID is %d" % pid)
#===============================================================================
def the_time():
t = float(ref_time(False)) * 0.001
return t
#------------------------------------------------------------------------------
t_reference = None
def ref_time(flg):
global t_reference
t_now = datetime.now()
if (flg):
t_reference = t_now
t = 0
else:
t_delta = t_now - t_reference
t = ((t_delta.seconds * 1000000) + t_delta.microseconds)/1000.0
return t
#===============================================================================
def main():
global verbose_flg
global debug_level
try:
opts, args = getopt.getopt(sys.argv[1:], "dD:vVw?")
except getopt.error, msg:
print __doc__
return 1
try:
terminal_type = os.environ["TERM"]
except KeyError, e:
print "Set TERM environment variable and rerun!"
return 1
wrk_path = os.getcwd()
wrk_dir = os.path.basename(wrk_path)
data_dir = wrk_dir + '/DATA/'
pid_path = data_dir + PIDFILE
# os.chdir(data_dir)
for o, a in opts:
if o == '-d':
debug_level += 1
elif o == '-D':
debug_level = int(a)
elif o == '-v':
verbose_flg = True
elif o == '-V':
print "[skel] Version: %s" % __version__
return 1
elif o == '-?':
print __doc__
return 1
print "[skel] Working directory is %s" % os.getcwd()
if (debug_level > 0): print "Debugging level set to %d" % debug_level
if args:
for arg in args:
print arg
init()
return 0
#-------------------------------------------------------------------------------
if __name__ == '__main__' or __name__ == sys.argv[0]:
try:
sys.exit(main())
except KeyboardInterrupt, e:
print "[skel] Interrupted!"
#-------------------------------------------------------------------------------
"""
Revision History:
Date Who Description
-------- --- ------------------------------------------------------------
20031014 plh Initial implementation
Problems to fix:
To Do:
Issues:
"""
Version Incorporating Dates
#!/usr/bin/env python
#
# @(#) [1.0.01] skel.py 2006-03-07
#
#
# NAME
# skel.py - Sample script
#
# SYNOPSIS
# skel.py [-dv] [-D <DATE>|-S <STARTDATE>|-E <ENDDATE>]
#
# PARAMETERS
# -D <DATE> Date (in ISO format
# -d Debug
# -v Verbose
#
# DESCRIPTION
# ...
#
# RETURNS
# 0 for successful completion, 1 for any error
#
# FILES
# ...
#
# $Id:$
#
#---------------------------------------------------------------------
"""
...
"""
#---------------------------------------------------------------------
import sys
import getopt
#---------------------------------------------------------------------
debug_level = 0
verbose_flg = True
#---------------------------------------------------------------------
def is_weekday(dow):
if ((dow >= 0) and (dow <=4)):
return 1
else:
return 0
#---------------------------------------------------------------------
def to_datetime(date):
date = int(date)
mday = date % 100
month = ( date % 10000) / 100
year = date / 10000
return datetime.date(day=mday, month=month, year=year)
#---------------------------------------------------------------------
def main():
global debug_flg
global verbose_flg
if None:
try:
userId = os.environ['USER']
except:
print "***** USER environment variable not set"
# sys.exit(0)
try:
opts, args = getopt.getopt(sys.argv[1:], "dD:E:S:vVY?")
except getopt.error, msg:
print __doc__
return 1
date = None
start_date = None
end_date = None
for o, a in opts:
if o == '-?':
print __doc__
return 1
elif o == '-d':
debug_level += 1
elif o == '-D':
date = to_datetime(a)
elif o == '-E':
end_date = to_datetime(a)
elif o == '-S':
start_date = to_datetime(a)
elif o == '-Y':
date = datetime.date.today() - datetime.timedelta(days=1)
elif o == '-v':
verbose_flg = True
elif o == '-V':
print "Version: %s" % __version__
return 1
else:
return 1
return 1
#---------------------------------------------------------------------
if __name__ == '__main__' or __name__ == sys.argv[0]:
try:
sys.exit(main())
except KeyboardInterrupt, e:
print "[skel] Interrupted!"
#---------------------------------------------------------------------
"""
Revision History:
Date Who Description
-------- --- --------------------------------------------------
20030920 plh Initial implementation
20031002 plh Cleaned up args in main(). Added '-h', '-?', '-V'
Problems to fix:
To Do:
Issues:
"""
A Really Old Version
#!/usr/bin/env python
#
#
# Purpose: Skeleton python script
#
#
# Copyright (C) Peter Harding, 2003
# All rights reserved
#
# $Id: skel.py,v 1.1.1.1 2003/10/22 11:57:35 zyx Exp $
#
#---------------------------------------------------------------------
"""
Skeleton Python Framework
Usage: skel.py -g <no> -v
The '-g <no>' option is used to specify the number of groups.
The '-v' turns on verbose mode.
"""
#---------------------------------------------------------------------
import os
import sys
import getopt
import string
import random
#---------------------------------------------------------------------
__version__ = "1.0.0"
wrk = None
no = None
#---------------------------------------------------------------------
def process():
pass
#---------------------------------------------------------------------
def main():
global debugFlg
global no
global verboseFlg
try:
opts, args = getopt.getopt(sys.argv[1:], "dg:vV?")
except getopt.error, msg:
print __doc__,
return 1
for o, a in opts:
if o == '-d':
debugFlg = 1
elif o == '-g':
no = int(a)
elif o == '-v':
verboseFlg = 1
elif o == '-V':
print "Version: %s" % __version__
return 0
elif o == '-?':
print __doc__()
return 0
if args:
for arg in args:
process arg
global wrk
wrk = os.getcwd()
process()
#---------------------------------------------------------------------
if __name__ == '__main__' or __name__ == sys.argv[0]:
sys.exit(main())
#---------------------------------------------------------------------
"""
Revision History:
Date Who Description
-------- --- --------------------------------------------------
20030920 plh Initial implementation
20031002 plh Cleaned up args in main(). Added '-h', '-?', '-V'
Problems to fix:
To Do:
Issues:
"""