A Simple ToDo App Using Python and MongoDB

mongo.todo.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-

import time
from datetime import datetime

from pymongo.connection import Connection
import pymongo

class ToDoApplication:

	def __init__ ( self, argv ):
		self.argv = argv
		try:
			self.mongo_connection = Connection()
			self.mongo_db = self.mongo_connection.todo
		except Exception, e:
			raise Exception ( "Oops! Error connecting to MongoDB: %s" % e )

	def help ( self, error=None ):
		if None != error:
			print error
			print
		print "usage: %s <method>" % self.argv[0]
		print
		print "== Methods =="
		print
		print "<none>             list all incomplete tasks sorted by priority then chronologically"
		print "help               show this help"
		print "next               list all incomplete tasks that are high priority"
		print "done               list all complete tasks chronologically"
		print "high <argument>    add high priority task called <argument>"
		print "low <argument>     add low priority task called <argument>"
		print "finish <argument>  complete task called <argument>"
		print "dont <argument>    delete unfinished task called <argument>"
		print

	def run ( self ):
		try:
			if 1 >= len( self.argv ):
				self.show(
					{ "complete": False },
					[ ( "level", pymongo.ASCENDING ), ( "added", pymongo.ASCENDING ) ]
				)
			else:
				if "help" == self.argv[1].lower():
					self.help()
				elif "next" == self.argv[1].lower():
					self.show(
						{ "level": "high", "complete": False },
						[ ( "level", pymongo.ASCENDING ), ( "added", pymongo.ASCENDING ) ]
					)
				elif "done" == self.argv[1].lower():
					self.show(
						{ "complete": { "$ne": False } },
						[ ( "completed", pymongo.ASCENDING ) ]
					)
				elif "high" == self.argv[1].lower():
					self.add( "high" )
				elif "low" == self.argv[1].lower():
					self.add( "low" )
				elif "finish" == self.argv[1].lower():
					self.complete( True )
				elif "dont" == self.argv[1].lower():
					self.complete( False )
				else:
					raise Exception( "Bad Method" )
		except Exception, e:
			self.help( str( e ) )

	def show ( self, params = None, sort = None ):
		cursor = self.mongo_db.todos.find( params ).sort( sort )
		for row in cursor:
			print row['task']

	def add ( self, level ):
		if 2 >= len( self.argv ):
			raise Exception( "missing argument" )
		self.mongo_db.todos.insert( 
			{
				"task": sys.argv[2],
				"level": level,
				"complete": False,
				"added": int( time.mktime( datetime.utcnow().timetuple() ) )
			}
		)

	def complete ( self, finish ):
		if 2 >= len( self.argv ):
			raise Exception( "missing argument" )

		document = self.mongo_db.todos.find_one( { "complete": False, "task": sys.argv[2] } )
		if not document:
			print "No Matching ToDo Found"
		else:
			if finish:
				document['complete'] = int( time.mktime( datetime.utcnow().timetuple() ) )
				self.mongo_db.todos.save( document )
			else:
				self.mongo_db.todos.remove( document )

if __name__ == "__main__":
	import sys

	try:
		app = ToDoApplication( sys.argv )
		app.run()
	except Exception, e:
		print e

how can i run this

This was written for Python 2, and you’d need a MongoDB instance running on your local machine. To be honest, it’s 11 years old, I would be shocked if it still worked.

You can give it a shot though, python mongo.todo.py help and see what happens.