It has been about a week since I released Propensity into the wild for your feedback, I have gotten a fair bit of feedback and received a lot of help. You will also notice that I jumped from version 0.1.0.1772 to 0.1.2.1906 well version 0.1.1.xxxx was released as a limited demo but I have pushed forward to release version 0.1.2.190.

New to this version we have:

• The ability to add your own programs to propensity (you can import them or manually add them)
• A Propensity Icon
• Cleaned up and much prettier terminal
• And many other little features.

As always feedback is wanted and bugs can be emailed to earobinson+propensity@gmail.com.

Download Propensity Here
Download Propensity Source Here

Ubuntu forums propensity post can be found here

Screenshots below

From Propensity

From Propensity

From Propensity

Related posts:

1. Propensity v0.1.2.1906 — Now With an Icon!
2. Propensity – feedback wanted
3. Python vte.Terminal example

New to this version we have:

• The ability to add your own programs to propensity (you can import them or manually add them)
• A Propensity Icon
• Cleaned up and much prettier terminal
• And many other little features.

As always feedback is wanted and bugs can be emailed to earobinson+propensity@gmail.com.

Download Propensity Here
Download Propensity Source Here

Ubuntu forums propensity post can be found here

Screenshots below

From Propensity

From Propensity

From Propensity

Related posts:

1. Propensity v0.1.2.1906 — Now With an Icon! (shameless repost)
2. Propensity – feedback wanted
3. DeadlineExceededError on Google App Engine

An so without further ado here is the code (all GPL). Hope this helps someone in the future. You can download the code here, or view it below.

VirtualTerminal.py (This code could be used in your program)
[sourcecode language="python"]#!/usr/bin/env python
#
# VirtualTerminal.py
#
# Copyright 2007 Edward Andrew Robinson <earobinson@gmail>
#
# 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.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#

# Imports
import os
import vte
import gtk
import time

class VirtualTerminal(vte.Terminal):
def __init__(self, log_file = None, history_length = 5, prompt_watch = {}, prompt_auto_reply = True, icon = None):
# Set up terminal
vte.Terminal.__init__(self)

self.history = []
self.history_length = history_length
self.icon = icon
self.last_row_logged = 0
self.log_file = log_file
self.prompt_auto_reply = prompt_auto_reply
self.prompt_watch = prompt_watch

self.connect(‘eof’, self.run_command_done_callback)
self.connect(‘child-exited’, self.run_command_done_callback)
self.connect(‘cursor-moved’, self.contents_changed_callback)

if False:
self.connect(‘char-size-changed’, self.activate_action, ‘char-size-changed’)
#self.connect(‘child-exited’, self.activate_action, ‘child-exited’)
self.connect(‘commit’, self.activate_action, ‘commit’)
self.connect(‘contents-changed’, self.activate_action, ‘contents-changed’)
#self.connect(‘cursor-moved’, self.activate_action, ‘cursor-moved’)
self.connect(‘decrease-font-size’, self.activate_action, ‘decrease-font-size’)
self.connect(‘deiconify-window’, self.activate_action, ‘deiconify-window’)
self.connect(‘emulation-changed’, self.activate_action, ‘emulation-changed’)
self.connect(‘encoding-changed’, self.activate_action, ‘encoding-changed’)
#self.connect(‘eof’, self.activate_action, ‘eof’)
self.connect(‘icon-title-changed’, self.activate_action, ‘icon-title-changed’)
self.connect(‘iconify-window’, self.activate_action, ‘iconify-window’)
self.connect(‘increase-font-size’, self.activate_action, ‘increase-font-size’)
self.connect(‘lower-window’, self.activate_action, ‘lower-window’)
self.connect(‘maximize-window’, self.activate_action, ‘maximize-window’)
self.connect(‘move-window’, self.activate_action, ‘move-window’)
self.connect(‘raise-window’, self.activate_action, ‘raise-window’)
self.connect(‘refresh-window’, self.activate_action, ‘refresh-window’)
self.connect(‘resize-window’, self.activate_action, ‘resize-window’)
self.connect(‘restore-window’, self.activate_action, ‘restore-window’)
self.connect(’selection-changed’, self.activate_action, ’selection-changed’)
self.connect(’status-line-changed’, self.activate_action, ’status-line-changed’)
self.connect(‘text-deleted’, self.activate_action, ‘text-deleted’)
self.connect(‘text-inserted’, self.activate_action, ‘text-inserted’)
self.connect(‘text-modified’, self.activate_action, ‘text-modified’)
self.connect(‘text-scrolled’, self.activate_action, ‘text-scrolled’)
self.connect(‘window-title-changed’, self.activate_action, ‘window-title-changed’)

def activate_action(self, action, string):
print ‘Action ‘ + action.get_name() + ‘ activated ‘ + str(string)

def capture_text(self,text,text2,text3,text4):
return True

def contents_changed_callback(self, terminal):
”’Gets the last line printed to the terminal, it will log
this line using self.log() (if the logger is on, and it will
also prompt this line using self.prompt() if the line needs
prompting”’
column,row = self.get_cursor_position()
if self.last_row_logged != row:
off = row-self.last_row_logged
text = self.get_text_range(row-off,0,row-1,-1,self.capture_text)
self.last_row_logged=row
text = text.strip()

# Log
self.log(text)

# Prompter
self.prompter()

def get_last_line(self):
terminal_text = self.get_text(self.capture_text)
terminal_text = terminal_text.split(‘\\\\n’)
ii = len(terminal_text) – 1
while terminal_text[ii] == ”:
ii = ii – 1
terminal_text = terminal_text[ii]

return terminal_text

def log(self, text):
”’if self.log_file is not None the the line will be logged to
self.log_file. This function also stors the info in self.histoy
if self.history_lenght > 0”’
if self.log_file != None:
date_string = time.strftime(‘[%d %b %Y %H:%M:%S] ‘, time.localtime())
file = open(self.log_file, ‘a’)
file.write(date_string + text + ‘\\\\n’)
file.close

# Append to internal history
if self.history_length != 0:
if len(self.history) >= self.history_length:
self.history.pop(0)
self.history.append(text)

def prompter(self):
last_line = self.get_last_line()
if last_line in self.prompt_watch:
if self.prompt_auto_reply == False:
message = ”
for ii in self.prompt_watch[last_line]:
message = message + self.history[self.history_length - 1 - ii]
if self.yes_no_question(message):
self.feed_child(‘Yes\\\\n’)
# TODO not sure why this is needed twice
self.feed_child(‘Yes\\\\n’)
else:
self.feed_child(‘No\\\\n’)
else:
self.feed_child(‘Yes\\\\n’)

def run_command(self, command_string):
”’run_command runs the command_string in the terminal. This
function will only return when self.thred_running is set to
True, this is done by run_command_done_callback”’
self.thread_running = True
spaces = ”
for ii in range(80 – len(command_string) – 2):
spaces = spaces + ‘ ‘
self.feed(‘$ ‘ + str(command_string) + spaces)
self.log(‘$ ‘ + str(command_string) + spaces)

command = command_string.split(‘ ‘)
pid = self.fork_command(command=command[0], argv=command, directory=os.getcwd())

while self.thread_running:
#time.sleep(.01)
gtk.main_iteration()

def run_command_done_callback(self, terminal):
”’When called this function sets the thread as done allowing
the run_command function to exit”’
#print ‘child done’
self.thread_running = False

def yes_no_question(self, message):
message = message.replace(‘\\\\n\\\\n’, ‘[NEWLINE][NEWLINE]‘).replace(‘\\\\n’, ”).replace(‘[NEWLINE]‘, ‘\\\\n’)

if message.find(‘?’) == -1:
message = message + ‘\\\\n\\\\nDo you want to continue?’

type=gtk.MESSAGE_QUESTION
if message.lower().find(‘warning’) != -1:
type=gtk.MESSAGE_WARNING

dialog = gtk.MessageDialog(parent=None, flags=0, type=type, buttons=gtk.BUTTONS_YES_NO, message_format=message)
dialog.set_icon(self.icon)
dialog.show_all()
responce = dialog.run()
dialog.destroy()

# Responce == yes
return responce == -8
[/sourcecode]

TestVirtualTerminal.py Used to actually make the GUIs, this is the program you should run.
[sourcecode language="python"]#!/usr/bin/env python
#
# TestVirtualTerminal.py
#
# Copyright 2007 Edward Andrew Robinson <earobinson@gmail>
#
# 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.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#

import gtk

from VirtualTerminal import VirtualTerminal

class mainWindow(gtk.Window):
def __init__(self):
gtk.Window.__init__(self)
self.connect(‘destroy’, lambda w: gtk.main_quit())
self.set_default_size(400, 400)

self.button = gtk.Button(‘press me’)
self.button.connect(“clicked”, self.pressed_callback)

self.command_entry = gtk.Entry()
self.command_entry.set_text(‘python count.py’)
#self.command_entry.set_text(’sudo aptitude install gaim-encryption’)

vbox = gtk.VBox()

self.r = 0

self.add(vbox)

vbox.pack_start(self.command_entry, False)
vbox.pack_start(self.button, True)

self.myTerminal = terminal()

self.show_all()

gtk.main()

def pressed_callback(self, button):
print ‘presed’
column,row = self.myTerminal.terminal.get_cursor_position()
if self.r != row:
off = row-self.r
text = self.myTerminal.terminal.get_text_range(row-off,0,row-1,-1,self.capture_text)
self.r=row
text = text.strip()
print text
self.button.set_sensitive(False)
self.myTerminal.terminal.run_command(self.command_entry.get_text())
self.button.set_sensitive(True)
print ‘done’

def capture_text(self,text,text2,text3,text4):
return True

class terminal(gtk.Window):
def __init__(self):
gtk.Window.__init__(self)
#self.set_title(self.settings.application_name)
self.connect(‘destroy’, lambda w: gtk.main_quit())

self.terminal = VirtualTerminal()

#self.child_pid = self.terminal.fork_command()

self.add(self.terminal)
self.show_all()

mainWindow()[/sourcecode]

count.py A little test program but you can run any command you want
[sourcecode language="python"]#!/usr/bin/python

import time

print ‘0′

for ii in range (10):
time.sleep(1)
print ii + 1[/sourcecode]

A special thanks to Alberto Milone for all the help he provided me with for this.

Related posts:

1. Tilda: The gaming style terminal
2. Geek Poll: What Do You Have Open?
3. Posting Source Code to Wordpress.com

I have spent a bit of my summer cleaning up that python program and the result is propensity (I looked for synonyms for aptitude) and now I figure its almost ready to be released into the public. I have uploaded both a deb file and the source to my website, and would love some feedback.

Some features that I would like to add before I release it are:

• I would like propensity to generate a standalone shell script that could be used to standalone install the package
• Icon
• Splash screen
• Ability to add your own programs and save them (so you can load them from a file at a later date) Thanks Ed
• Documentation

To sum up you can get the deb file here, and the source here. Thanks for any feedback you have.

Update 01: I made a post to the ubuntu forums and posted a screenshot
Update 02: I have been dugg.
Update 03: Propensity has only been tested on feisty.

Related posts:

1. Propensity v0.1.2.1906 — Now With an Icon!
2. Propensity v0.1.2.1906 — Now With an Icon! (shameless repost)
3. Lets Let APT-URL Install Repositories