list1 = [5, 6]
list2 = [7, 8]

def get_list():
    return list1

get_list().extend(list2)  # ✅ Работает
get_list() += list2       # ❌ SyntaxError

my_tuple = ([1, 2], [3, 4], [5, 6])
my_tuple[0].extend([10, 11])  # works
my_tuple[0] += [10, 11]  # TypeError

import chardet

# Пример текста в неизвестной кодировке
text_bytes = "Привет, мир!".encode("windows-1251")

# Определение кодировки
result = chardet.detect(text_bytes)

print(result)

{'encoding': 'windows-1251', 'confidence': 0.99, 'language': 'Russian'}

from string.templatelib import Template

name = "World"
template = t"Hello {name}"
isinstance(template, Template) # 👉 True
print(template.values)  # 👉 ("World",)

from string.templatelib import Template, Interpolation

def lower_upper(template: Template) -> str:
    """Render static parts lowercased and interpolations uppercased."""
    parts: list[str] = []
    for item in template:
        if isinstance(item, Interpolation):
            parts.append(str(item.value).upper())
        else:
            parts.append(item.lower())
    return "".join(parts)

name = "world"
assert lower_upper(t"HELLO {name}") == "hello WORLD"

try:
    ...
except (ExceptionA, ExceptionB, ExceptionC):
    ...

try:
    ...
except ExceptionA, ExceptionB, ExceptionC:
    ...

try:
    raise ExceptionGroup("eg",
        [ValueError(1), TypeError(2), OSError(3), OSError(4)])
except* TypeError as e:
    print(f'caught {type(e)} with nested {e.exceptions}')
except* OSError as e:
    print(f'caught {type(e)} with nested {e.exceptions}')

# caught <class 'ExceptionGroup'> with nested (TypeError(2),)
# caught <class 'ExceptionGroup'> with nested (OSError(3), OSError(4))
#   + Exception Group Traceback (most recent call last):
#   |   File "<stdin>", line 2, in <module>
#   | ExceptionGroup: eg
#   +-+---------------- 1 ----------------
#     | ValueError: 1
#     +------------------------------------