Python Programming Tutorials

Python Programming Tutorials And Articles
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Python supports a couple of looping constructs. The for statement is most commonly used. It loops over the elements of a sequence, assigning each to the loop variable. If the body of your loop is simple, the interpreter overhead of the for loop itself can be a substantial amount of the overhead....
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Amazon's Simple Queue Service is a highly scalable service to help cloud-based applications use a queuing system which is reliable & scalable. Amazon's queue has it's pros & cons, like the messages may not be received in the order they were queued, and you may receive duplicates, I had written an...
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Sun Rasterfile also known as Sunrast is an image format developed by Sun Microsystems, It uses a version of Run Length Encoding to compress images. In this tutorial we'll be discussing how Sun Rasterfile's implementation of RLE is different from the basic vanila version and how is it used to...
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Sudoku is a logic based number-placement puzzle, The objective of the puzzle is to fill a n * n grid with digits so that :- Each column of the square contains each of the numbers from 1 to n exactly once. Each row of the square contains each of the numbers from 1 to n exactly once. The...
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At times it's possible to complete a batch job using parallel processing using fork instead of threads which needs much more careful planning. On the other hand fork is easy to implement, although it might not be as efficient and flexible as threads. Forking is an important part of *nix design,...
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Python being one of the most popular languages, it's being used increasingly used for creating dynamic websites or for specific parts of websites, like Google's support fully runs on Python scripts. But, for this type of usage the ability to access RDBMS is indispensable, although unlike PHP,...
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Being in the era of instant updates & notifications one would at some point or the other would need to parse/format date & time, be it any language. Here, we'll see how we can parse & format date/time with Python. Python is natively equipped with the functions to make our job easier, the...
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Geolocation software/services are used to find the actual geographic location of an IP address, the geographic information may be accurate till city/ZIP code level. Maxmind's GeoIP is one such provider of IP address geographic information, they have both free and paid data subscriptions which...
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CSV files are quite common these days owing to the fact that CSV files are simple text and make data transfer between different systems very easy. CSV stands for Comma Separated Values, i.e. the fields are separated by comma, so there exists similar formats where the separator is a different...
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In a previous article Access MySQL Databases in Python few months back, in that I had discussed using MySQLdb python module to access MySQL in Python scripts, though that being easy & good lacked many important features like placeholders/parameterization, lazy execute & fetch, buffering of large...
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SQLite is a very small RDBMS, unlike other popular RDBMS it does not have a client/server model, data is stored in a file. SQLite is very portable, and very popular for creating prototype systems before actual work is started. Here, we'll see how to access & modify SQLite database in Python. Python...
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