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windows default iconpsifas for Windows Publisher's description

Psifas (or pypsifas) is a python library for parsing and building of data structures with

Psifas (or pypsifas) is a python library for parsing and building of data structures with the ability of solving simple heuristics of interdepent sub-structures. It is based on the concept of defining data structures in a declarative manner, where complex structures are composed by combining simpler ones.


Bit-level - you can work with individual bits.
Byte ordering - supports both little and big endian byte ordering
Componentized - combine the primitives into more complex structures
Symmetrical - psifases can both parse (create an object from raw data) and build (create raw data from an object)
Ready - comes with many built-in primitives and inventory psifases that you can use out-of-the-box.
Declarative - you write a data structure, not code.
Easy to debug - much easier to correct a data structure instead of code. Furthermore, when an exception is raised, the user is told the position in the psifas structure in which the error happend.
Easy to test - componentization means that once a component works, it always works. You can easily share structures between modules without something breaking.
Easy to extend - when the need arises, just subclass from one of the generic classes.
Thread-safe - Psifas is fully thread safe; you can parse the same psifas in parallel threads.
Nameless - psifases do not have names. Their names are given when they're put in other structures. For example, several fields with different names can be of type "Bigendian 4 bytes number".
Verifiable - Easy design of fields that are expected to contain a specific value, or one value out of a range (enums, checksums, and more..)
Orderless dependencies - The value a field can be dependent on the values of previous or following fields.
Dynamic dependencies (Links) - Psifases use Links to mention which other fields' values they require. For example, when a string with a dynamic length (Segment) is created, it will be created with a Link to the field that should contain its length. The Segment class is generic, and can use any Link you want.
Work on payloads - Calculate values from the raw-buffer (the payload) that was used to evaluate other fields (usefull in checksums & crcs)
Sorted print - When printing containers (the result of parsing structures with several fields, like a IP header), their attributes will be displayed in the order they were set (unlike python dictionaries in which the keys can be reordered).

What's New in This Release:

В· now in MIT License.

System Requirements:

В· Python
Program Release Status: New Release
Program Install Support: Install and Uninstall

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