Huge sis file from small Python script

[florianosc]

Hi,

I just upgraded PyS60 from 1.9.4 to 1.9.5. With 1.9.4 I wrote and packaged two scripts. After installation of 1.9.5 on my phone they refused to start, complaining about missing Python runtime and PIPS.

So I used the 1.9.5 packager to repackage them and reinstalled. Now both work correctly.

A weird thing happened, though. One of the sis is about the same size as the one produced by 1.9.4 packager, while the other is huge! With previous version the sis file was less than 10 kB, now it is 270 kB! I changed nothing in the code.

Here I attach the source code. I hope someone may help me understand what happened.

Thanks
-----------------------------------------------------------------------------------

# BirthWatch 1.0
# Copyright (C) 2007, Floriano Scioscia
#
# A tool for Python S60 to add calendar entries for contacts' birthdays
#
# This program is free software; you can redistribute it and/or modify it under the terms
# of the GNU General Public License as published by the Free Software Foundation;
# either version 2 of the License, or (at your option) any later version.
# This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
# without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# See the GNU General Public License for more details.

import time
import e32
import appuifw
import calendar
import contacts
import time

SIS_VERSION = u"1.0.0"

class BirthdayEntry:

	def __init__(self, name, surname, birthday):
		self.marker = u"- BW"
		self.name = name
		self.surname = surname
		self.birthday = birthday
		self.n = 10  # number of years to repeat

	def __cmp__(self, other):
		b1 = self.get_birthday_string()
		b2 = other.get_birthday_string()
		if b1 < b2:
			return -1
		else:
			return 1

	def get_birthday_string(self):
		return time.strftime("%m/%d", time.localtime(self.birthday))

	def get_birthday_year(self):
		return time.strftime("%Y", time.localtime(self.birthday))

	def get_label(self):
		return self.get_birthday_string() + u": " + self.get_full_name()

	def get_full_name(self):
		return self.name + u" " + self.surname

	def get_anniv_label(self):
		return self.get_full_name() + u" (" + self.get_birthday_year() + u") " + self.marker

	def search_anniversary(self, cal_db):
		bd = time.localtime(self.birthday)
		year = time.localtime(time.time()).tm_year
		start = time.struct_time((bd.tm_year, bd.tm_mon, bd.tm_mday, 0, 0, 0, 0, 1, 0))
		end = time.struct_time((year+self.n, bd.tm_mon, bd.tm_mday, 0, 0, 0, 0, 1, 0))
		return cal_db.find_instances(time.mktime(start), time.mktime(end), self.get_anniv_label())

	def get_repeat(self):
		bd = time.localtime(self.birthday)
		year = time.localtime(time.time()).tm_year
		start = time.struct_time((year, bd.tm_mon, bd.tm_mday, 0, 0, 0, 0, 1, 0))
		end = time.struct_time((year+self.n, bd.tm_mon, bd.tm_mday, 0, 0, 0, 0, 1, 0))
		repeat = {'type':'yearly_by_date', 'interval':1, 'start':time.mktime(start), 'end':time.mktime(end)}
		return repeat

	def add_anniversary(self, cal_db):
		anniv_list = self.search_anniversary(cal_db)
		if len(anniv_list) == 0:
			anniv = cal_db.add_anniversary()
			anniv.set_time(self.birthday)
			anniv.content = self.get_anniv_label()
			repeat = self.get_repeat()
			anniv.set_repeat(repeat)
			anniv.commit()
			return 'added'
		else:
			return 'untouched'

	def remove_anniversary(self, cal_db):
		anniv_list = self.search_anniversary(cal_db)
		if len(anniv_list) > 0:
			cal_db.__delitem__(anniv_list[0]['id'])
			return 'removed'
		else:
			return 'not found'

class BirthWatch:

	def run(self):
		appuifw.note(u"Scanning contacts...");
		self.scan_contacts()
		indexes = appuifw.multi_selection_list(self.labels, style='checkbox', search_field=1)
		while len(indexes) > 0:
			action = appuifw.popup_menu([u"Add selected", u"Remove selected"], u"Select action:")
			if action == 0:
				self.add(indexes)
			elif action == 1:
				self.remove(indexes)
			indexes = appuifw.multi_selection_list(self.labels, style='checkbox', search_field=1)

	def scan_contacts(self):
		db = contacts.open()  # open database
		self.entries = []
		self.labels = []
		for entry_id in db:
			contact = db[entry_id]
			dates = contact.find(type='date')
			if len(dates) > 0:
				name = contact.find('first_name')[0].value
				surname = contact.find('last_name')[0].value
				ent = BirthdayEntry(name, surname, dates[0].value)
				self.entries.append(ent)
		self.entries.sort()
		for ent in self.entries:
			self.labels.append(ent.get_label())

	def add(self, indexes):
		cal_db = calendar.open()
		added = 0
		untouched = 0
		for i in indexes:
			e = self.entries[i]
			r = e.add_anniversary(cal_db)
			if r == 'added':
				added += 1
			elif r == 'untouched':
				untouched += 1
		appuifw.note(u"%d entries processed.\n%d added\n%d already found"%(len(indexes), added, untouched))

	def remove(self, indexes):
		cal_db = calendar.open()
		removed = 0
		notfound = 0
		for i in indexes:
			e = self.entries[i]
			r = e.remove_anniversary(cal_db)
			if r == 'removed':
				removed += 1
			elif r == 'not found':
				notfound += 1
		appuifw.note(u"%d entries processed.\n%d removed\n%d not found"%(len(indexes), removed, notfound))

	def about(self):
		appuifw.note(u'BirthWatch ' + SIS_VERSION + u'\nCopyright (C) 2008, Floriano Scioscia\nfloriano.scioscia@libero.it\nEnjoy!')

# Startup
old_screen = appuifw.app.screen
old_body = appuifw.app.body
old_title = appuifw.app.title
old_menu = appuifw.app.menu
old_exit_handler = appuifw.app.exit_key_handler

b = BirthWatch()
b.run()

# Cleanup
appuifw.app.body = old_body
appuifw.app.title = old_title
appuifw.app.menu = old_menu
appuifw.app.exit_key_handler = old_exit_handler
appuifw.app.screen = old_screen
#appuifw.app.set_exit()

[gaba88]

Hi,

I just upgraded PyS60 from 1.9.4 to 1.9.5. With 1.9.4 I wrote and packaged two scripts. After installation of 1.9.5 on my phone they refused to start, complaining about missing Python runtime and PIPS.

So I used the 1.9.5 packager to repackage them and reinstalled. Now both work correctly.

A weird thing happened, though. One of the sis is about the same size as the one produced by 1.9.4 packager, while the other is huge! With previous version the sis file was less than 10 kB, now it is 270 kB! I changed nothing in the code.

Here I attach the source code. I hope someone may help me understand what happened.

hello florianosc

just a guess may be the python dependencies packaged along with your application sis.

Cheers,
Gaba88

[mahesh.sayibabu]

The packaging tool also packages the modules(if they are imported) that are not available in base runtime. Hence the sis file size can increase. The list of modules that would be available in the base runtime is more refined now and the sis file created with the packager from the next release should be smaller than the current 270kb.

[florianosc]

Thank you very much for your replies!

So the PyS60 1.9.4 runtime contains all modules documented in PyS60 library reference, while 1.9.5 only some of them?
I did not suspect that, since the Python 1.9.5 sis file size about the same size as 1.9.4.

Edit: problem found!
I had not read that PyS60 1.9.5 changed the name of 'calendar' module to 'e32calendar', while a 'calendar' module was imported from standard Python distribution. So the packager inserted that module into my application!

Actually, I should have noticed earlier, since access to Symbian calendar caused an error in the new version (because it was using the old name of the module).

Now the sis package is 58 KB, of which about 20 are for the 'contacts' module and 25 for the 'e32calendar' module.