I am trying to understand how can lambda function be used.

def adder_func(a, b):return a + bprint(adder_func(4, 5))# trying with lambda
print(list(lambda a, b: a + b))

When trying to use lambda as a adder_function, why is that the result cannot be printed?

O/P:

9
Traceback (most recent call last):File "C:\Users\redsuren\PycharmProjects\py_charm_tutorial_amigoscode\lambda_adder.py", line 7, in <module>print(list(lambda a, b: a + b))
TypeError: 'function' object is not iterableProcess finished with exit code 1

AND, If keyword "list" is removed and try to print the return value, it give me some hexa_value, what does this value represent?

print(lambda a, b: a + b)

O/P:

<function <lambda> at 0x0000019440B5E0D0>

Seems like you're trying to do this

adder_func = lambda a, b: a + b
print(adder_func(4, 5))

Or this, which defines the function, then passes the parameters on the same line... You don't need list() to do that

a = 4
b = 5
print((lambda a, b: a + b)(a, b))

Printing a function object isn't all that useful, as you can see, and the list() function accepts iterables, which function objects are not (not to be confused with the return values of functions that are iterable, or generator objects), for example

def adder_func(a, b):yield a + b
print(adder_func)  # <function adder_func at 0x1019c3b80>
print(adder_func(4, 5))  # <generator object adder_func at 0x101996200>
print(list(adder_func(4, 5)))  # [9]