Hello Python 3.14

1.py

world = "World"
template = t"Hello, {world}"
print(type(template))
print(list(template))
print(template.strings)
print(template.values)
print(template.interpolations)


# ผลการ run
<class 'string.templatelib.Template'>
['Hello, ', Interpolation('World', 'world', None, '')]
('Hello, ', '')
('World',)
(Interpolation('World', 'world', None, ''),)

1.txt

# Upgrade Python
$uv python upgrade 3.14
$uv venv --python 3.14
Using CPython 3.14
Creating virtual environment at: .venv
Activate with: source .venv/bin/activate

$python -V
Python 3.14

$uv tool install ruff@latest

2.py

def bad_try():
    try:
        1 / 0
    except:
        return float("inf")
    finally:
        return 0

print(bad_try())

# ผลการ run
SyntaxWarning: 'return' in a 'finally' block
  return 0
0

3.txt

$python -m calendar 2025 10
    October 2025
Mo Tu We Th Fr Sa Su
       1  2  3  4  5
 6  7  8  9 10 11 12
13 14 15 16 17 18 19
20 21 22 23 24 25 26
27 28 29 30 31

$python -m json users.json
{
    "id": 1,
    "name": "Leanne Graham",
    "username": "Bret",
    "email": "[email protected]",
    "address": {
        "street": "Kulas Light",
        "suite": "Apt. 556",
        "city": "Gwenborough",
        "zipcode": "92998-3874",
        "geo": {
            "lat": "-37.3159",
            "lng": "81.1496"
        }
    },
    "phone": "1-770-736-8031 x56442",
    "website": "hildegard.org",
    "company": {
        "name": "Romaguera-Crona",
        "catchPhrase": "Multi-layered client-server neural-net",
        "bs": "harness real-time e-markets"
    }
}

4.py

try:
    int("one")
except ValueError, TypeError:
    print("Error caught !!")
    

# ถ้า Run ใน Python 3.13 จะ error
    except ValueError, TypeError:
           ^^^^^^^^^^^^^^^^^^^^^
SyntaxError: multiple exception types must be parenthesized

5.py

from compression import zstd
import math

data = str(math.pi).encode() * 20
compressed = zstd.compress(data)
ratio = len(compressed) / len(data)

print("Original size:", len(data))
print("Compressed size:", len(compressed))
print("Compression ratio:", ratio)

5.txt

$uvx [email protected]
Python 3.14.0 free-threading build (main, Oct 10 2025, 12:32:44) [Clang 20.1.4 ] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>>