Python Articles

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Color game using Tkinter in Python

karthikeya Boyini
karthikeya Boyini
Updated on 30-Jul-2019 2K+ Views

For developing GUI applications tkinter is very popular and easy. Using tkinter easily develop GUI games. Here also we are trying to develop color game. In this game the player has to enter color of the word that appears on the screen and hence the score increases by one, the total time to play this game is 30 seconds and colors used in this game are Red, Blue, Green, Pink, Black, Yellow, Orange, White, Purple and Brown. The interface will display name of different colors in different colors. User has to identify the color and enter the correct color name ...

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Python program to create a sorted merged list of two unsorted list

karthikeya Boyini
karthikeya Boyini
Updated on 30-Jul-2019 684 Views

Here two user input list is given, the elements of two lists are unsorted. Our task is to merged these two unsorted array and after that sort the list. Example Input: A [] = {100, 50, 150} B [] = {200, 30, 20} Output: Merge List:{20, 30, 50, 100, 150, 200} Algorithm Step 1: first we create two user input list. Step 2: Final merge list size is (size of the first list + the size of the second list). Step 3: then sort two list using sort() method. Step ...

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Python program to count unset bits in a range.

Ankith Reddy
Ankith Reddy
Updated on 30-Jul-2019 290 Views

Given a positive a number and the range of the bits. Our task is to count unset bits in a range. Input : n = 50, starting address = 2, ending address = 5 Output : 2 There are '2' unset bits in the range 2 to 5. Algorithm Step 1 : convert n into its binary using bin(). Step 2 : remove first two characters. Step 3 : reverse string. Step 4 : count all unset bit '0' starting from index l-1 to r, where r is exclusive. Example Code # ...

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Python Program to Cyclic Redundancy Check

Samual Sam
Samual Sam
Updated on 30-Jul-2019 7K+ Views

For detecting errors in digital data CRC is used, this is a good technique in detecting the transmission errors. In this technique mainly binary division is applied. In these technique, cyclic redundancy check bits are present which is a sequence of redundant bits, these bits are appended to the end of data unit so that the resulting data unit becomes exactly divisible by a second which is predetermined binary number. At the destination side, the incoming data is divided by the same number, if there is no remainder then assumed that data is correct and it’s ready to accept. A ...

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Python Internet String Preparation

Ankith Reddy
Ankith Reddy
Updated on 30-Jul-2019 435 Views

To identify different things in the internet, it is necessary to compare different identification for equality. The comparison procedure depends on the application domain. For an example, some things are case-insensitive etc. To check these kind of information stringprep is used. The RFC 3454 defines the procedure to prepare the Unicode strings before transmitting through the wire. After going through the preparation procedure, they have a certain normalized form. The RFC defines a set of tables; these tables can be combined into profiles. For an example there is a profile of stringprep is nameprep. In the nameprep, there are internationalized ...

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Stack and Queue in Python using queue Module

karthikeya Boyini
karthikeya Boyini
Updated on 30-Jul-2019 732 Views

In Python, it is very easy to implement stack and queue data structures. Stack is called LIFO because Stack works on the principle of "Last-in, first-out" and Queue is called FIFO because Queue works on the principle of "First-in, first-out", and the inbuilt functions in Python make the code shorter and simple. The Queue module implements multi-producer, multi-consumer queues and It is especially useful in threaded programming when information must be exchanged safely between multiple threads. The Queue class in this module implements all the required locking semantics and it depends on the availability of thread support in Python. This ...

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How to execute Python CGI Script on Apache Server?

Arnab Chakraborty
Arnab Chakraborty
Updated on 30-Jul-2019 612 Views

in apache server normally python script will not run. SO you have to go httpd.conf file in apache server, inside that you will find some .php, .asp etc in a property called AddHandler, you have to put there .py. save the file and restart the server. then run your python CGI script, it will run properly 

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How will you explain Python Operator Overloading?

Jayashree
Jayashree
Updated on 30-Jul-2019 318 Views

Every class in Python, whether built-in or user defined is inherited from object class. The object class has a number of properties whose name is preceded and followed by double underscores (__). Each of these properties is a wrapper around a method of same name. Such methods are called special or magic methods.The magic methods __lt__(), __gt__(), __eq__(), __ne__(), etc. are overridden in a class to overload == and != operators respectively.

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How can I preserve Python tuples with JSON?

Samual Sam
Samual Sam
Updated on 30-Jul-2019 474 Views

There is no concept of a tuple in the JSON format. Python's JSON module converts Python tuples to JSON lists because that's the closest thing in JSON to a tuple. Immutability will not be preserved. If you want to preserve them, use a utility like a pickle or write your own encoders and decoders.If you're using pickle, it won't store the Python temples in JSON files but in pkl files. This isn't useful if you're sending data across the web. The best way is to use your own encoders and decoders that will differentiate between lists and tuples depending on ...

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Do you think a Python dictionary is thread safe?

George John
George John
Updated on 30-Jul-2019 2K+ Views

Yes, a Python dictionary is thread safe. Actually, all built-ins in python are thread safe. You can read moreabout this in the documentation: https://docs.python.org/3/glossary.html#term-global-interpreter-lock

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