Sometimes when I write a little python script – with only a few lines of code – it starts growing and I keep adding functionality. When a certain threshold is reached I start thinking that there should be a logger used (instead of print) and maybe a configuration file (instead of all these commandline switches). Since python coding is not something I do on a daily basis python code is not something I come up with just like that. So I either copy & paste code from other scripts or even have to look up how exactly the logger is set up putty download , how a configuration file is loaded or how signal handler is registered. It’s always the same story and as a keen Emacs user I finally made it an end 🙂
Using emacs auto-insert-mode. In my configuration auto-insert-mode inserts the file „“ from my „~/.emacs.d/templates/“ directory and inserts into the buffer whenever I open a yet non-existing file with the .py extension:

(setq auto-insert-directory "~/.emacs.d/templates/"
      auto-insert-query nil)
(add-to-list 'auto-insert-alist '(".*\\.py[3]?$" . [ "" ]))

This works pretty well and of course hosts my nitty gritty python boiler plate that I want to see in my scripts (no matter how small they are 🙂 ):


import logging
import logging.handlers
import signal
import sys
import os
import time
import argparse

# Author     : Matthias
# Description: Python script template

class Application:

    name               = ''
    version            = ''
    log                = None
    properties         = None
    parser             = None
    args               = None

    def __init__(self):
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, Application.signal_int_handler) parser = argparse.ArgumentParser(description="", epilog="") parser.add_argument("-v", "--verbose", help="Be more verbose when logging", action="store_true") parser.add_argument("-P", "--properties", help="A properties file for use by the application", type=str) parser.add_argument("-l", "--loghost", help="Name of host to receive log messages", default="") parser.add_argument("-p" puttygen download , "--logport", help="Port of service to receive log messages", type=int, default=logging.handlers.DEFAULT_TCP_LOGGING_PORT) parser.add_argument("-d", "--logdomain", help="Domain for logging", default="this-script") parser.add_argument("-r", "--remotelog", help="Enable remote logging with default host and port", action="store_true") self.args = parser.parse_args() self.parser = parser self.setup_logging() self.read_properties( def setup_logging(self): self.log = logging.getLogger(self.args.logdomain) rootlogger = logging.getLogger() formatstring='%(asctime)s %(levelname)-15s %(name)s # %(message)s' formatter = logging.Formatter(fmt=formatstring, datefmt='%d.%m.%y %I:%M:%S') handler = None if self.args.remotelog: handler = logging.handlers.SocketHandler(self.loghost_name, self.loghost_port) else: handler = logging.StreamHandler(sys.stderr) handler.setFormatter(formatter) rootlogger.addHandler(handler) level = logging.INFO if self.args.verbose: level = logging.DEBUG self.log.setLevel(level) rootlogger.setLevel(level) self.log.propagate=1 def read_properties(self, filename): """ Read the file passed as parameter as a properties file. """ if filename: properties = {} comment_char = "#" seperator = ":" with open(filename, "rt") as f: for line in f: l = line.strip() if l and not l.startswith(comment_char): key_value = l.split(seperator) key = key_value[0].strip() value = seperator.join(key_value[1:]).strip().strip('"') properties[key] = value = properties @staticmethod def signal_int_handler(signal, frame): interrupt_msg = '\r\n\r\n{} {} terminated by keyboard interrupt'.format(, Application.version) print(interrupt_msg) exit(0) def run(self): pass def main(): app = Application()'{} {} is starting'.format(, app.version))'{} {} is done'.format(, app.version)) if __name__ == '__main__': main() # # Done # # # # end of script