gaia-simpleeval 0.1.0

High-performance drop-in replacement for simpleeval using Rust

gaia-simpleeval

A high-performance drop-in replacement for simpleeval, implemented in Rust via PyO3.

Installation

pip install gaia-simpleeval

Usage

No code changes required. gaia-simpleeval automatically patches simpleeval at import time:

import gaia_simpleeval import simpleeval

result = simpleeval.simple_eval("2 + 2 * 3")

Or use the gaia API directly:

import gaia_simpleeval as gse result = gse.simple_eval("x + y", names={"x": 1, "y": 2})

Performance

More than 20x faster than the original simpleeval on typical expressions:

Expression	simpleeval	gaia-simpleeval	Speedup
2+2	8.1 us	0.36 us	22x
2+2*3	9.6 us	0.37 us	26x
x+y (names)	8.2 us	0.58 us	14x
1<2	8.6 us	0.40 us	21x
3.14*2.0	8.2 us	0.36 us	23x

Compatibility

• Drop-in replacement — all simpleeval APIs work unchanged
• Supports Python 3.9 through 3.13
• Falls back to original simpleeval for advanced usage (custom operators, allowed_attrs)
• All 205 simpleeval compatibility tests pass

Security

gaia-simpleeval preserves all simpleeval security constraints:

• No access to builtins, imports, or file system
• Module objects in names raise FeatureNotAvailable
• Dunder functions raise FunctionNotDefined

License

MIT