From 4b04bdf44d981d39bac307dd4436ff88a71d800c Mon Sep 17 00:00:00 2001
From: Wulian233 <1055917385@qq.com>
Date: Thu, 27 Mar 2025 20:10:41 +0800
Subject: [PATCH 1/5] ok

---
 Lib/sqlite3/dbapi2.py                                        | 5 ++++-
 .../Library/2025-01-21-14-51-44.gh-issue-118761.Z0F-d5.rst   | 1 +
 2 files changed, 5 insertions(+), 1 deletion(-)
 create mode 100644 Misc/NEWS.d/next/Library/2025-01-21-14-51-44.gh-issue-118761.Z0F-d5.rst

diff --git a/Lib/sqlite3/dbapi2.py b/Lib/sqlite3/dbapi2.py
index 0315760516edf8..26eaf153bad7d2 100644
--- a/Lib/sqlite3/dbapi2.py
+++ b/Lib/sqlite3/dbapi2.py
@@ -20,9 +20,9 @@
 #    misrepresented as being the original software.
 # 3. This notice may not be removed or altered from any source distribution.
 
-import datetime
 import time
 import collections.abc
+import datetime
 
 from _sqlite3 import *
 
@@ -37,12 +37,15 @@
 Timestamp = datetime.datetime
 
 def DateFromTicks(ticks):
+    import time  # Lazy, to improve import time
     return Date(*time.localtime(ticks)[:3])
 
 def TimeFromTicks(ticks):
+    import time  # Lazy, to improve import time
     return Time(*time.localtime(ticks)[3:6])
 
 def TimestampFromTicks(ticks):
+    import time  # Lazy, to improve import time
     return Timestamp(*time.localtime(ticks)[:6])
 
 
diff --git a/Misc/NEWS.d/next/Library/2025-01-21-14-51-44.gh-issue-118761.Z0F-d5.rst b/Misc/NEWS.d/next/Library/2025-01-21-14-51-44.gh-issue-118761.Z0F-d5.rst
new file mode 100644
index 00000000000000..5d9157e9085a17
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2025-01-21-14-51-44.gh-issue-118761.Z0F-d5.rst
@@ -0,0 +1 @@
+Halve the import time of :mod:`sqlite3`.

From d3cf658dba37aafbeb5c1a7545186eb886a3abd8 Mon Sep 17 00:00:00 2001
From: Wulian233 <1055917385@qq.com>
Date: Fri, 6 Jun 2025 10:29:25 +0800
Subject: [PATCH 2/5] Improve the import time of `sqlite3` by 1.5x faster.

---
 Lib/sqlite3/__main__.py                          | 16 ++++++++++------
 Lib/sqlite3/dbapi2.py                            |  6 ++++--
 ...025-01-21-14-51-44.gh-issue-118761.Z0F-d5.rst |  2 +-
 3 files changed, 15 insertions(+), 9 deletions(-)

diff --git a/Lib/sqlite3/__main__.py b/Lib/sqlite3/__main__.py
index 79a6209468dae4..ae33a88ba6964b 100644
--- a/Lib/sqlite3/__main__.py
+++ b/Lib/sqlite3/__main__.py
@@ -7,10 +7,6 @@
 import sqlite3
 import sys
 
-from argparse import ArgumentParser
-from code import InteractiveConsole
-from textwrap import dedent
-
 
 def execute(c, sql, suppress_errors=True):
     """Helper that wraps execution of SQL code.
@@ -34,13 +30,15 @@ def execute(c, sql, suppress_errors=True):
             sys.exit(1)
 
 
-class SqliteInteractiveConsole(InteractiveConsole):
+class SqliteInteractiveConsole:
     """A simple SQLite REPL."""
 
     def __init__(self, connection):
-        super().__init__()
+        from code import InteractiveConsole
         self._con = connection
         self._cur = connection.cursor()
+        self._console = InteractiveConsole()
+        self._console.runsource = self.runsource
 
     def runsource(self, source, filename="<input>", symbol="single"):
         """Override runsource, the core of the InteractiveConsole REPL.
@@ -61,8 +59,14 @@ def runsource(self, source, filename="<input>", symbol="single"):
                 execute(self._cur, source)
         return False
 
+    def interact(self, banner, exitmsg=""):
+        self._console.interact(banner, exitmsg=exitmsg)
+
 
 def main(*args):
+    from argparse import ArgumentParser
+    from textwrap import dedent
+
     parser = ArgumentParser(
         description="Python sqlite3 CLI",
     )
diff --git a/Lib/sqlite3/dbapi2.py b/Lib/sqlite3/dbapi2.py
index 26eaf153bad7d2..b651aea5c85904 100644
--- a/Lib/sqlite3/dbapi2.py
+++ b/Lib/sqlite3/dbapi2.py
@@ -20,9 +20,8 @@
 #    misrepresented as being the original software.
 # 3. This notice may not be removed or altered from any source distribution.
 
-import time
-import collections.abc
 import datetime
+import collections.abc
 
 from _sqlite3 import *
 
@@ -54,7 +53,10 @@ def TimestampFromTicks(ticks):
 Binary = memoryview
 collections.abc.Sequence.register(Row)
 
+# Lazy registe
 def register_adapters_and_converters():
+    global _lazy_register
+    _lazy_register = lambda: None  # Prevent multiple registration  # noqa: E731
     from warnings import warn
 
     msg = ("The default {what} is deprecated as of Python 3.12; "
diff --git a/Misc/NEWS.d/next/Library/2025-01-21-14-51-44.gh-issue-118761.Z0F-d5.rst b/Misc/NEWS.d/next/Library/2025-01-21-14-51-44.gh-issue-118761.Z0F-d5.rst
index 5d9157e9085a17..eab19174b21825 100644
--- a/Misc/NEWS.d/next/Library/2025-01-21-14-51-44.gh-issue-118761.Z0F-d5.rst
+++ b/Misc/NEWS.d/next/Library/2025-01-21-14-51-44.gh-issue-118761.Z0F-d5.rst
@@ -1 +1 @@
-Halve the import time of :mod:`sqlite3`.
+Improve the import time of :mod:`sqlite3` by 1.5x faster.

From def197450d5718aef3f8e8acc0d91ff221b47962 Mon Sep 17 00:00:00 2001
From: Wulian233 <1055917385@qq.com>
Date: Fri, 6 Jun 2025 10:47:41 +0800
Subject: [PATCH 3/5] fix & finish

---
 Lib/sqlite3/__main__.py | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/Lib/sqlite3/__main__.py b/Lib/sqlite3/__main__.py
index 21f46549fc159a..ab9834fe12cfb6 100644
--- a/Lib/sqlite3/__main__.py
+++ b/Lib/sqlite3/__main__.py
@@ -7,6 +7,7 @@
 import sqlite3
 import sys
 
+from code import InteractiveConsole
 from _colorize import get_theme, theme_no_color
 
 
@@ -36,15 +37,13 @@ def execute(c, sql, suppress_errors=True, theme=theme_no_color):
             sys.exit(1)
 
 
-class SqliteInteractiveConsole:
+class SqliteInteractiveConsole(InteractiveConsole):
     """A simple SQLite REPL."""
 
     def __init__(self, connection, use_color=False):
         from code import InteractiveConsole
         self._con = connection
         self._cur = connection.cursor()
-        self._console = InteractiveConsole()
-        self._console.runsource = self.runsource
         self._use_color = use_color
 
     def runsource(self, source, filename="<input>", symbol="single"):
@@ -77,9 +76,6 @@ def runsource(self, source, filename="<input>", symbol="single"):
             execute(self._cur, source, theme=theme)
         return False
 
-    def interact(self, banner, exitmsg=""):
-        self._console.interact(banner, exitmsg=exitmsg)
-
 
 def main(*args):
     from argparse import ArgumentParser

From 04eedab50ef77749ae361d0aeeb3970f4b3a1a11 Mon Sep 17 00:00:00 2001
From: Wulian233 <1055917385@qq.com>
Date: Fri, 6 Jun 2025 10:49:08 +0800
Subject: [PATCH 4/5] Update dbapi2.py

---
 Lib/sqlite3/dbapi2.py | 1 -
 1 file changed, 1 deletion(-)

diff --git a/Lib/sqlite3/dbapi2.py b/Lib/sqlite3/dbapi2.py
index b651aea5c85904..53cafad41a2fe3 100644
--- a/Lib/sqlite3/dbapi2.py
+++ b/Lib/sqlite3/dbapi2.py
@@ -53,7 +53,6 @@ def TimestampFromTicks(ticks):
 Binary = memoryview
 collections.abc.Sequence.register(Row)
 
-# Lazy registe
 def register_adapters_and_converters():
     global _lazy_register
     _lazy_register = lambda: None  # Prevent multiple registration  # noqa: E731

From ccf3575d521358ed9d41c26474560a862a3d9188 Mon Sep 17 00:00:00 2001
From: Wulian233 <1055917385@qq.com>
Date: Fri, 6 Jun 2025 10:56:08 +0800
Subject: [PATCH 5/5] fix

---
 Lib/sqlite3/__main__.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Lib/sqlite3/__main__.py b/Lib/sqlite3/__main__.py
index ab9834fe12cfb6..471273b32131f8 100644
--- a/Lib/sqlite3/__main__.py
+++ b/Lib/sqlite3/__main__.py
@@ -41,7 +41,7 @@ class SqliteInteractiveConsole(InteractiveConsole):
     """A simple SQLite REPL."""
 
     def __init__(self, connection, use_color=False):
-        from code import InteractiveConsole
+        super().__init__()
         self._con = connection
         self._cur = connection.cursor()
         self._use_color = use_color