Category: Python

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.

Python

Python tool to expand short URLs

Post author By masnun
Post date May 11, 2009

In one of my last posts, I posted a code snippet which demonstrated how to use php to expand short URLs to their original long form. Here’s the Python version I coded a few minutes ago.

Python 3:

import http.client
from urllib.parse import urlparse
url = input("\nEnter URL:\n>>>").strip()
t = urlparse(url)
print("\n-----Connecting-----\n\n")
conn = http.client.HTTPConnection(t.netloc)
conn.request("GET", t.path)
print(conn.getresponse().getheader("Location"))
print("\n\n");

import http.client

from urllib.parse import urlparse

url = input("\nEnter URL:\n>>>").strip()

t = urlparse(url)

print("\n-----Connecting-----\n\n")

conn = http.client.HTTPConnection(t.netloc)

conn.request("GET", t.path)

print(conn.getresponse().getheader("Location"))

print("\n\n");

These codes are for Python 3. The tool was developed for CLI use.

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