Port variant v11
Summary Single expression evaluator library (3.11)
Package version 0.9.13
Keywords python
Maintainer Python Automaton
License Not yet specified
Other variants v12
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Last modified 22 OCT 2023, 16:37:00 UTC
Port created 22 OCT 2023, 16:37:00 UTC
Subpackage Descriptions
single simpleeval (Simple Eval) ======================== :alt: Build Status :alt: Code Coverage :alt: PyPI Version A single file library for easily adding evaluatable expressions into python projects. Say you want to allow a user to set an alarm volume, which could depend on the time of day, alarm level, how many previous alarms had gone off, and if there is music playing at the time. Or if you want to allow simple formulae in a web application, but don't want to give full eval() access, or don't want to run in javascript on the client side. It's deliberately trying to stay simple to use and not have millions of features, pull it in from PyPI (pip or easy_install), or even just a single file you can dump into a project. Internally, it's using the amazing python ast module to parse the expression, which allows very fine control of what is and isn't allowed. It should be completely safe in terms of what operations can be performed by the expression. The only issue I know to be aware of is that you can create an expression which takes a long time to evaluate, or which evaluating requires an awful lot of memory, which leaves the potential for DOS attacks. There is basic protection against this, and you can lock it down further if you desire. (see the Operators_ section below) You should be aware of this when deploying in a public setting. The defaults are pretty locked down and basic, and it's easy to add whatever extra specific functionality you need (your own functions, variable/name lookup, etc). Basic Usage ----------- To get very simple evaluating: .. code-block:: python from simpleeval import simple_eval simple_eval("21 + 21") returns 42. Expressions can be as complex and convoluted as you want: .. code-block:: python simple_eval("21 + 19 / 7 + (8 % 3) ** 9") returns ``535.714285714``. You can add your own functions in as well. .. code-block:: python simple_eval("square(11)", functions={"square": lambda x: x*x}) returns 121. For more details of working with functions, read further down. Note: ~~~~~ all further examples use ``>>>`` to designate python code, as if you are using the python interactive prompt. .. _Operators: Operators --------- You can add operators yourself, using the operators argument, but these are the defaults: +--------+------------------------------------+ | ``+`` | add two things. ``x + y`` | | | ``1 + 1`` -> 2 | +--------+------------------------------------+ | ``-`` | subtract two things ``x - y`` | | | ``100 - 1`` -> 99 | +--------+------------------------------------+ | ``/`` | divide one thing by another |
Configuration Switches (platform-specific settings discarded)
PY311 ON Build using Python 3.11 PY312 OFF Build using Python 3.12
Package Dependencies by Type
Build (only) python-pip:single:v11
Build and Runtime python311:single:standard
Download groups
main mirror://PYPIWHL/0a/51/bedb4af4f3fe4bb32a3cabfd285be388958c6d676f6b0fa65997812a381b
Distribution File Information
22a2701a5006e4188d125d34accf2405c2c37c93f6b346f2484b6422415ae54a 15277 simpleeval-0.9.13-py2.py3-none-any.whl
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