Replace deprecated datetime.utcfromtimestamp()

src/README.rst

@@ -148,7 +148,7 @@ section for more details)
 Converting between timezones is more easily done, using the
 standard astimezone method.
 
->>> utc_dt = utc.localize(datetime.utcfromtimestamp(1143408899))
+>>> utc_dt = datetime.fromtimestamp(1143408899, tz=utc)
 >>> utc_dt.strftime(fmt)
 '2006-03-26 21:34:59 UTC+0000'
 >>> au_tz = timezone('Australia/Sydney')
@@ -166,7 +166,7 @@ conversions. ``normalize()`` and ``localize()`` are not really
 necessary when there are no daylight saving time transitions to
 deal with.
 
->>> utc_dt = datetime.utcfromtimestamp(1143408899).replace(tzinfo=utc)
+>>> utc_dt = datetime.fromtimestamp(1143408899, tz=utc)
 >>> utc_dt.strftime(fmt)
 '2006-03-26 21:34:59 UTC+0000'
 >>> au_tz = timezone('Australia/Sydney')
@@ -605,4 +605,3 @@ Contact
 ~~~~~~~
 
 Stuart Bishop <stuart@stuartbishop.net>
-

src/pytz/tzinfo.py

@@ -1,6 +1,6 @@
 '''Base classes and helpers for building zone specific tzinfo classes'''
 
-from datetime import datetime, timedelta, tzinfo
+from datetime import datetime, timedelta, timezone, tzinfo
 from bisect import bisect_right
 try:
     set
@@ -24,7 +24,7 @@ def memorized_timedelta(seconds):
         _timedelta_cache[seconds] = delta
         return delta
 
-_epoch = datetime.utcfromtimestamp(0)
+_epoch = datetime.fromtimestamp(0, tz=timezone.utc)
 _datetime_cache = {0: _epoch}
 
 
@@ -33,7 +33,7 @@ def memorized_datetime(seconds):
     try:
         return _datetime_cache[seconds]
     except KeyError:
-        # NB. We can't just do datetime.utcfromtimestamp(seconds) as this
+        # NB. We can't just do datetime.fromtimestamp(seconds, tz=timezone.utc) as this
         # fails with negative values under Windows (Bug #90096)
         dt = _epoch + timedelta(seconds=seconds)
         _datetime_cache[seconds] = dt