Year: 2009

Python

ZIP, Python and TK

The title says it all. Here’s a very simple program written in Python and TK which can extract a ZIP file to the selected location.

Python 3 – Source Codes:

import zipfile
import tkinter, tkinter.filedialog
root = tkinter.Tk()
root.title("ZIP Unzipper")
frame = tkinter.Frame(root)
btn = tkinter.Button(frame)
inputBox = tkinter.Entry(frame)
label = tkinter.Label(frame,text="Target Location:")
def work():
	zipF = zipfile.ZipFile(tkinter.filedialog.askopenfile().name)
	zipF.extractall(inputBox.get())

btn['text'] = "Choose & Extract"
btn['command'] = work
label.pack()
inputBox.pack()
btn.pack()
frame.pack()
root.maxsize(100,100)
root.minsize(100,100)
root.mainloop()

import zipfile

import tkinter, tkinter.filedialog

root = tkinter.Tk()

root.title("ZIP Unzipper")

frame = tkinter.Frame(root)

btn = tkinter.Button(frame)

inputBox = tkinter.Entry(frame)

label = tkinter.Label(frame,text="Target Location:")

def work():

zipF = zipfile.ZipFile(tkinter.filedialog.askopenfile().name)

zipF.extractall(inputBox.get())

btn['text'] = "Choose & Extract"

btn['command'] = work

label.pack()

inputBox.pack()

btn.pack()

frame.pack()

root.maxsize(100,100)

root.minsize(100,100)

root.mainloop()

Explanations It creates a TK interface with a button and a text entry widgets. Clicking on the button invokes the work() function. The work() function displays a filedialog and prompts you to choose a ZIP file. Then it creates a new ZipFile object using the file location. The extractall() method of the ZipFile object extracts all contents of the archive into the directory specified using the inputBox text entry widget. We call inputBox.get() to get it’s value. If the value of target location is null, the files are extracted into the current working directory. In case of an invalid target location, it prints out error messages to the console.

It’s a very basic program with a little functionality. It mainly demonstrates the use of TK and Python to write GUI programs that really does something.

Python

Building GUI with Python and Tk

Post author By masnun
Post date May 27, 2009

I have been looking for a decent GUI toolkit to develop some desktop programs. I worked with Java. Didn’t like the idea of typing that much to develop a app. Used php with WinBinder and PHP-GTK. Liked the first one, but the binary I have won’t load the winbinder extension. To use it, I will have to go back to php4. Again I don’t like the idea of using php4 for GUI while using php5 for web development. So again I had to make a swtich. This time I went for wxPython for Python 2.6.0. Alas, though wxPython used to work fine on my XP, it no longer runs on Windows Vista.

Finally, I deceided to work with TK which comes pre-installed with Python. The IDLE, Module Docs and other GUI tools which comes with a standard Python installations are most often developed using TK on Python.

I liked TK quite a bit because the process of developing TK GUI apps are damn easy and great fun. While learning TK, I converted my old console twitter publisher to a TK powered GUI app. Here’s the sourcecode:

Python 3 Source Code:

import tkinter
root = tkinter.Tk();
root.title("maSnun")
mainFrame = tkinter.Frame(root)
topFrame = tkinter.Frame(mainFrame)
resFrame = tkinter.Frame(mainFrame)
topFrame["height"] = 50
topFrame["width"] = 400
inputBox = tkinter.Entry(topFrame)
okButton = tkinter.Button(topFrame)
okButton["text"] = "OK"
okButton["fg"] = "white"
okButton["bg"] = "black"
label = tkinter.Label(resFrame)
label.pack({"side":"top"})
label["text"] = ""
def ok_act():
	global label,inputBox
	import sys;
	from urllib.request import urlopen,Request;
	import base64;

	username = "username";
	password = "password";
	url = "http://www.twitter.com/statuses/update.xml";
	status = inputBox.get();
	data ="status="+status;
	req = Request(url);
	req.data = data;
	req.headers['Authorization'] = 'Basic %s' %  (base64.b64encode((username + ":" + password).encode())).decode();
	# req.headers['User-Agent'] = 'Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.8.1.20) Gecko/20081217 Firefox/2.0.0.20';
	urlopen(req);
	label["text"] = "Tweet Published!!"
	label.pack({"side":"top"})


okButton["command"] = ok_act
inputBox.pack({"side":"left"})
okButton.pack()
topFrame.pack({"side":"top"})


topFrame.pack({"side":"top"});
resFrame.pack({"side":"top"})
mainFrame.pack()
root.maxsize(400,400)
root.minsize(400,400)
root.mainloop();

import tkinter

root = tkinter.Tk();

root.title("maSnun")

mainFrame = tkinter.Frame(root)

topFrame = tkinter.Frame(mainFrame)

resFrame = tkinter.Frame(mainFrame)

topFrame["height"] = 50

topFrame["width"] = 400

inputBox = tkinter.Entry(topFrame)

okButton = tkinter.Button(topFrame)

okButton["text"] = "OK"

okButton["fg"] = "white"

okButton["bg"] = "black"

label = tkinter.Label(resFrame)

label.pack({"side":"top"})

label["text"] = ""

def ok_act():

global label,inputBox

import sys;

from urllib.request import urlopen,Request;

import base64;

username = "username";

password = "password";

url = "http://www.twitter.com/statuses/update.xml";

status = inputBox.get();

data ="status="+status;

req = Request(url);

req.data = data;

req.headers['Authorization'] = 'Basic %s' % (base64.b64encode((username + ":" + password).encode())).decode();

# req.headers['User-Agent'] = 'Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.8.1.20) Gecko/20081217 Firefox/2.0.0.20';

urlopen(req);

label["text"] = "Tweet Published!!"

label.pack({"side":"top"})

okButton["command"] = ok_act

inputBox.pack({"side":"left"})

okButton.pack()

topFrame.pack({"side":"top"})

topFrame.pack({"side":"top"});

resFrame.pack({"side":"top"})

mainFrame.pack()

root.maxsize(400,400)

root.minsize(400,400)

root.mainloop();

It’s very comfortable to work on TK. Write less, do more. A good set of widgets and a powerful language like Python as the backend… It’s simply cool 🙂

Python

Simple Console Clock for Windows with Python

Post author By masnun
Post date May 27, 2009

The code is self explanatory:

Python 3 Source Code:

from threading import Timer # import the Timer class
import os # import os library
import time # import time library
def main(): # define the main function
	os.system("cls") # Windows: Clear the console (Remove last printout)
	print("Time: "+time.ctime(time.time())) # Display the time
	t = Timer(1,main) # Instantiate the Timer() object with 1 sec interval -- Recursive
	t.start() # Start the timer

if __name__ == "__main__": # Check if the script is being executed from console
	main() # Start the program

from threading import Timer # import the Timer class

import os # import os library

import time # import time library

def main(): # define the main function

os.system("cls") # Windows: Clear the console (Remove last printout)

print("Time: "+time.ctime(time.time())) # Display the time

t = Timer(1,main) # Instantiate the Timer() object with 1 sec interval -- Recursive

t.start() # Start the timer

if __name__ == "__main__": # Check if the script is being executed from console

main() # Start the program

It displays a clock on Windows Command Prompt and updates it every second. It mainly demonstrates the Timer object of threading library.

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