A demo of some Python 3.12 features! - Python Pastebin

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"""A demo of some Python 3.12 features!"""

# f-strings are less restrictive now (they don't have their own parser anymore)
embed = ["embed", "f-strings", "in", "f-strings"]
backslashes = ["put", "backslashes", "in", "f-string", "replacement fields"]

print(f"You can {" ".join(embed)} even with double quotes embedded in double quotes...")
print(f"More importantly you can now (finally) {'\n'.join(backslashes)}!")
print(f"Or embed {(w:='walruses')}, but please don't use {w} in f-strings.")
print(f"""The ability to put {
    # Re-use previous list because we're lazy
    " ".join(backslashes).replace("backslashes", "comments")
} *might* come in handy though?""")
print("On f-string changes:\nhttps://docs.python.org/3.12/whatsnew/3.12.html#pep-701-syntactic-formalization-of-f-strings\n\n")


from os.path import commonprefix
import pathlib

class Path(pathlib.Path):
    """
    You can now subclass pathlib.Path objects to extend their functionality!
    This was deceptively difficult to do in Python 3.11 and below.
    """
    def common_prefix(self, other):
        """Return the common prefix between our path and the given path."""
        return type(self)(commonprefix((self, other)))

path1 = Path("this/is/a/path").resolve()
path2 = Path("this/is/another/path").resolve()
print(
    "You can now subclass pathlib.Path objects now too:",
    path1.common_prefix(path2),
)
print("Also Path objects now have a walk method which works like os.walk! 👏")
print("And relative_to accepts walk_up=True to act like os.path.relpath!")
print("\n")


from itertools import batched

sentence = """
itertools now has a batched function which is basically the same
as a Python Morsels exercise. Can you figure out which one?
"""
for words in batched(sentence.split(), 6):
    print(*words)
print("\n")


print("And of course Python 3.12 is a bit faster than Python 3.11")
print("And the error messages have continued improving! https://docs.python.org/3.12/whatsnew/3.12.html#improved-error-messages")


print("""Also sqlite3 and uuid both have command-line interfaces now!
https://docs.python.org/3.12/library/uuid.html#uuid-cli
https://docs.python.org/3.12/library/sqlite3.html#sqlite3-cli""")


print("Unicode 15.0.0 is now supported too: \N{PINK HEART} & \N{GOOSE} anyone?")
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