Functions, Classes, and Methods

Python native mode serializes Python-specific callable and type values that are outside the xlang type system. Use strict=False only for trusted payloads and apply a deserialization policy when the accepted dynamic surface must be restricted.

Serialize Global Functions

Capture and serialize functions defined at module level. Fory deserializes and returns the same function object:

import pyfory

fory = pyfory.Fory(xlang=False, ref=True, strict=False)

def my_global_function(x):
    return 10 * x

data = fory.dumps(my_global_function)
print(fory.loads(data)(10))  # 100

Serialize Local Functions/Lambdas

Serialize functions with closures and lambda expressions. Fory captures the closure variables automatically:

import pyfory

fory = pyfory.Fory(xlang=False, ref=True, strict=False)

# Local functions with closures
def my_function():
    local_var = 10
    def local_func(x):
        return x * local_var
    return local_func

data = fory.dumps(my_function())
print(fory.loads(data)(10))  # 100

# Lambdas
data = fory.dumps(lambda x: 10 * x)
print(fory.loads(data)(10))  # 100

Serialize Global Classes/Methods

Serialize class objects, instance methods, class methods, and static methods:

from dataclasses import dataclass
import pyfory
fory = pyfory.Fory(xlang=False, ref=True, strict=False)

@dataclass
class Person:
    name: str
    age: int

    def f(self, x):
        return self.age * x

    @classmethod
    def g(cls, x):
        return 10 * x

    @staticmethod
    def h(x):
        return 10 * x

# Serialize global class
print(fory.loads(fory.dumps(Person))("Bob", 25))  # Person(name='Bob', age=25)

# Serialize instance method
print(fory.loads(fory.dumps(Person("Bob", 20).f))(10))  # 200

# Serialize class method
print(fory.loads(fory.dumps(Person.g))(10))  # 100

# Serialize static method
print(fory.loads(fory.dumps(Person.h))(10))  # 100

Serialize Local Classes/Methods

Serialize classes defined inside functions along with their methods:

from dataclasses import dataclass
import pyfory
fory = pyfory.Fory(xlang=False, ref=True, strict=False)

def create_local_class():
    class LocalClass:
        def f(self, x):
            return 10 * x

        @classmethod
        def g(cls, x):
            return 10 * x

        @staticmethod
        def h(x):
            return 10 * x
    return LocalClass

# Serialize local class
data = fory.dumps(create_local_class())
print(fory.loads(data)().f(10))  # 100

# Serialize local class instance method
data = fory.dumps(create_local_class()().f)
print(fory.loads(data)(10))  # 100

# Serialize local class method
data = fory.dumps(create_local_class().g)
print(fory.loads(data)(10))  # 100

# Serialize local class static method
data = fory.dumps(create_local_class().h)
print(fory.loads(data)(10))  # 100