```python
def foo() -> int :
	return x ** 2


x = foo( 2 )
print(x) # 5


def foo( x : str, y : int ) -> str :
    ...........


name = input('Ведите имя:') # - всегда строка!
print(dir(name)) # - вывод атрибутов

# ['__add__', '__class__', '__contains__', '__delattr__', '__dir__', '__doc__', '__eq__', '__format__', '__ge__', '__getattribute__', '__getitem__', '__getnewargs__', '__getstate__', '__gt__', '__hash__', '__init__', '__init_subclass__', '__iter__', '__le__', '__len__', '__lt__', '__mod__', '__mul__', '__ne__', '__new__', '__reduce__', '__reduce_ex__', '__repr__', '__rmod__', '__rmul__', '__setattr__', '__sizeof__', '__str__', '__subclasshook__', 'capitalize', 'casefold', 'center', 'count', 'encode', 'endswith', 'expandtabs', 'find', 'format', 'format_map', 'index', 'isalnum', 'isalpha', 'isascii', 'isdecimal', 'isdigit', 'isidentifier', 'islower', 'isnumeric', 'isprintable', 'isspace', 'istitle', 'isupper', 'join', 'ljust', 'lower', 'lstrip', 'maketrans', 'partition', 'removeprefix', 'removesuffix', 'replace', 'rfind', 'rindex', 'rjust', 'rpartition', 'rsplit', 'rstrip', 'split', 'splitlines', 'startswith', 'strip', 'swapcase', 'title', 'translate', 'upper', 'zfill']
#
```

```python
# собираем все параметры в кортеж:

def sum_nums(*args):
	print(args)
	print(type(args))
	print(args[0])
	return sum(args)


print(sum_nums(2, 3, 7))
``` 

```python
# аргументы с ключевыми словами - порядок не важен:

def get_post_info(name, post_qty):
	info = f"{name} wrote {post_qty} posts"
	return info
  

info = get_post_info(name='Vlapa', post_qty=50)
print(info)
```

```python
# объединение аргументов в DICT (только именованные):

def get_post_info(**person):
	print(person)
	print(type(person))
	info = (
	f"{person['name']} wrote "
	f"{person['post_qty']} posts"
	)
	return info

info = get_post_info(name='Vlapa', post_qty=50)
print(info)
```

```python
# значение по умолчанию:

def mult_by(value, multiplier=1):
	return value * multiplier

print(mult_by(10, 2))
print(mult_by(5))

```

```python
# 

from datetime import date

  
def get_weekday():
	return date.today().strftime('%A')

  
def create_new_post(post, weekday=get_weekday()):
	post_copy = post.copy()
	post_copy['created_on_weekday'] = weekday
	return post_copy


initial_post = {
	'id': 234,
	'author': 'Vlapa',
}

post_with_weekday = create_new_post(initial_post)
```

```python
# callback function

def print_number_info(num):
	"""
	Print num information
	Args:
		num (int): Integer number
	"""
	if (num % 2) == 0:
	print("Число четное")
else:
	print("Число НЕ четное")


def print_square_num(num):
	print("Square of the num is", num * num)


def process_number(num, callback_fn):
	callback_fn(num)

  
entered_num = int(input("Введите любое целое число: "))

process_number(entered_num, print_number_info)
process_number(entered_num, print_square_num)
```

```python
print(dir()) # все переменные области
```

```python
def greeting(greet):
	return lambda name: f"{greet}, {name}!"
	
	# def info(name):
	#	 return f"{greet}, {name}!"
	# return info

morning_greeting = greeting("Good Morning")

print(morning_greeting('Vlapa'))

evening_greeting = greeting("Good Evening")

print(evening_greeting('Vlapa'))
```
======================================================
### Голобурдин:

```python
def chain_sum0(number):
	result = number
	def wrapper(number2=None):
		nonlocal result
		if number2 is None:
			return result
		result += number2
		return wrapper
	return wrapper
	

def chain_sum00(number):
	result = number
	def wrapper(number2=None):
		nonlocal result
		try:
			number2 = int(number2)
		except TypeError:
			return result
		result += number2
		return wrapper
	return wrapper
	

def chain_sum(number):
	def wrapper(number2=None):
		def inner():
			wrapper.result += number2
		return wrapper
		logic = {
			type(None): lambda: wrapper.result,
			int: inner
		}
		return logic[type(number2)]()
	wrapper.result = number
	return wrapper


print(chain_sum(5)())
print(chain_sum(5)(2)())
print(chain_sum(5)(100)(-10)())
```