GH-103857: Deprecate utcnow and utcfromtimestamp (#103858)

Using `datetime.datetime.utcnow()` and `datetime.datetime.utcfromtimestamp()` will now raise a `DeprecationWarning`.

We also have removed our internal uses of these functions and documented the change.

1 files changed, 4 insertions, 4 deletions

diff --git a/Lib/email/utils.py b/Lib/email/utils.py
index 4d014ba..81da539 100644
--- a/Lib/email/utils.py
+++ b/Lib/email/utils.py
@@ -143,13 +143,13 @@ def formatdate(timeval=None, localtime=False, usegmt=False):
     # 2822 requires that day and month names be the English abbreviations.
     if timeval is None:
         timeval = time.time()
-    if localtime or usegmt:
-        dt = datetime.datetime.fromtimestamp(timeval, datetime.timezone.utc)
-    else:
-        dt = datetime.datetime.utcfromtimestamp(timeval)
+    dt = datetime.datetime.fromtimestamp(timeval, datetime.timezone.utc)
+
     if localtime:
         dt = dt.astimezone()
         usegmt = False
+    elif not usegmt:
+        dt = dt.replace(tzinfo=None)
     return format_datetime(dt, usegmt)
 
 def format_datetime(dt, usegmt=False):