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Data Python scripts

File Subclass

If the 'file' object looks for a '.filename.pkl' file which contains the seek offset of the previous end of the file, then this subclass sets the seek offset to that number before returning the file.On closing the file or StopIteration, it writes the new max offset to this pickle file. ...
Python

catenateFilesFactory

... common variations.Catenating (or concatenating) files is a common data processing task, but there are at least three independent binary choices for the functional requirements. This could mean 8 different functions, or one functions with three additional boolean arguments.Binary files are relatively easy to handle. So are text files - unless the last ...
Python

Record Jar Parser

... method to parse a file like object containing data in the record jar format. ...
Python

Parse and create fixed size binary data

Python's struct library is too low-level for direct usage. This script having only 40 lines shows how it can be turned into more developer-friendly tool. ...
Python

Symmetric data obfuscation using xor

... be conveniently used to obfuscate a string of data using simple xor without using any key. ...
Python

Merge sorted sequences

... will run a C speed merge on the data. So, all that is involved is concatenating the sequences and running a sort. ...
Python

Two pass Pairing Heap with Auxiliary List

This script allows you to manage data collections.For random data, this implementation still makes more comparisons than a ... heapq or the builtin sort. For partially ordered data, it can perform better than the builtin sort. Because of the list of lists data structure, it always takes more memory than either
Python

Metakit for safe reading and writing

Metakit is a reliable/lightweight/fast database library that python can use. Metakit has an ... simultaneous readers and one writer w/out needing a database server to synchronize things. ...
Python

Design mini lanugage

... text handling capability to parse and build the data structure from the input text. ...
Python

Recover files from damaged media

Files existing on damaged media (eg old CD-ROMs) are not completely lost. Often, readers will read sectors unreadable in other readers.The "trick" shown by this script is to merge the successful reads from several devices. ...
Python

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