Remove Python 3.8 support (#11321)

Closes #10086
Authored by: bashonly

yt_dlp/__init__.py

@@ -1,8 +1,8 @@
 import sys
 
-if sys.version_info < (3, 8):
+if sys.version_info < (3, 9):
     raise ImportError(
-        f'You are using an unsupported version of Python. Only Python versions 3.8 and above are supported by yt-dlp')  # noqa: F541
+        f'You are using an unsupported version of Python. Only Python versions 3.9 and above are supported by yt-dlp')  # noqa: F541
 
 __license__ = 'The Unlicense'
 

yt_dlp/compat/compat_utils.py

@@ -57,7 +57,7 @@ def passthrough_module(parent, child, allowed_attributes=(..., ), *, callback=la
         callback(attr)
         return ret
 
-    @functools.lru_cache(maxsize=None)
+    @functools.cache
     def from_child(attr):
         nonlocal child
         if attr not in allowed_attributes:

yt_dlp/compat/functools.py

@@ -5,8 +5,3 @@ from .compat_utils import passthrough_module
 
 passthrough_module(__name__, 'functools')
 del passthrough_module
-
-try:
-    _ = cache  # >= 3.9
-except NameError:
-    cache = lru_cache(maxsize=None)

yt_dlp/extractor/pornbox.py

@@ -1,5 +1,6 @@
+import functools
+
 from .common import InfoExtractor
-from ..compat import functools
 from ..utils import (
     int_or_none,
     parse_duration,

yt_dlp/plugins.py

@@ -1,4 +1,5 @@
 import contextlib
+import functools
 import importlib
 import importlib.abc
 import importlib.machinery
@@ -13,7 +14,6 @@ import zipimport
 from pathlib import Path
 from zipfile import ZipFile
 
-from .compat import functools  # isort: split
 from .utils import (
     Config,
     get_executable_path,

yt_dlp/update.py

@@ -2,6 +2,7 @@ from __future__ import annotations
 
 import atexit
 import contextlib
+import functools
 import hashlib
 import json
 import os
@@ -12,7 +13,6 @@ import sys
 from dataclasses import dataclass
 from zipimport import zipimporter
 
-from .compat import functools  # isort: split
 from .compat import compat_realpath
 from .networking import Request
 from .networking.exceptions import HTTPError, network_exceptions
@@ -135,7 +135,7 @@ def _get_binary_name():
 
 
 def _get_system_deprecation():
-    MIN_SUPPORTED, MIN_RECOMMENDED = (3, 8), (3, 9)
+    MIN_SUPPORTED, MIN_RECOMMENDED = (3, 9), (3, 9)
 
     if sys.version_info > MIN_RECOMMENDED:
         return None
@@ -146,18 +146,6 @@ def _get_system_deprecation():
     if sys.version_info < MIN_SUPPORTED:
         return f'Python version {major}.{minor} is no longer supported! {PYTHON_MSG}'
 
-    EXE_MSG_TMPL = ('Support for {} has been deprecated. '
-                    'See  https://github.com/yt-dlp/yt-dlp/{}  for details.\n{}')
-    STOP_MSG = 'You may stop receiving updates on this version at any time!'
-    variant = detect_variant()
-
-    # Temporary until Windows builds use 3.9, which will drop support for Win7 and 2008ServerR2
-    if variant in ('win_exe', 'win_x86_exe'):
-        platform_name = platform.platform()
-        if any(platform_name.startswith(f'Windows-{name}') for name in ('7', '2008ServerR2')):
-            return EXE_MSG_TMPL.format('Windows 7/Server 2008 R2', 'issues/10086', STOP_MSG)
-        return None
-
     return f'Support for Python version {major}.{minor} has been deprecated. {PYTHON_MSG}'
 
 

yt_dlp/utils/_utils.py

@@ -9,6 +9,7 @@ import datetime as dt
 import email.header
 import email.utils
 import errno
+import functools
 import hashlib
 import hmac
 import html.entities
@@ -44,7 +45,6 @@ import xml.etree.ElementTree
 
 from . import traversal
 
-from ..compat import functools  # isort: split
 from ..compat import (
     compat_etree_fromstring,
     compat_expanduser,