Pyjail Math

Build basic arithmetic expressions that evaluate to given numbers.

from pyjailmath.builder import PyjailMathBuilder

pmb = PyjailMathBuilder(
    '0', '1', '1+1', '-1', '-1-1',  # should evaluate to 0, 1, 2, -1, -2, respectively
    (r'(.+)', r'(\1)'),  # regex replace pattern to force operator precedence
    {'+', '-', '-unary', '*', '**', '//', '^', '~'},  # allowed operators
)
pmb.add_number_mappings({3: '3'})  # additional expressions

# Precompute small values
pmb.precompute_numbers([i for i in range(2, 1000)])
pmb.precompute_numbers([i**2 for i in range(2, 80)])
pmb.precompute_numbers([i**3 for i in range(2, 50)])
pmb.precompute_numbers([i**4 for i in range(2, 30)])

# Compute big value
print(pmb.get_number(133713371337))  # (((~3*~3*3*~3+1)*(~(3**3-~3)**(1+1)))*(3*((3)*(-3*3*~3-3))**(3)-3))//(1+3)

Installation

Install pyjailmath from PyPI using pip.

python3 -m pip install --upgrade pyjailmath