petab.v1.math.printer

A PEtab-compatible sympy string-printer.

Functions

petab_math_str(expr)

Convert a sympy expression to a PEtab-compatible math expression string.

Classes

PetabStrPrinter([settings])

A PEtab-compatible sympy string-printer.

class petab.v1.math.printer.PetabStrPrinter(settings=None)[source]

Bases: StrPrinter

A PEtab-compatible sympy string-printer.

petab.v1.math.printer.petab_math_str(expr: Basic | Expr | None) → str[source]

Convert a sympy expression to a PEtab-compatible math expression string.

Example:

>>> expr = sp.sympify("x**2 + sin(y)")
>>> petab_math_str(expr)
'x ^ 2 + sin(y)'
>>> expr = sp.sympify("Piecewise((1, x > 0), (0, True))")
>>> petab_math_str(expr)
'piecewise(1, x > 0, 0)'