fix timezone for py27

beem/account.py

@@ -10,7 +10,8 @@
 from .blockchainobject import BlockchainObject
 from .utils import formatTimeString
 from beem.amount import Amount
-from datetime import datetime, timedelta, timezone
+from datetime import datetime, timedelta
+import pytz
 from beembase import operations
 from beembase.account import PrivateKey, PublicKey
 import json
@@ -149,7 +150,8 @@ def voting_power(self, precision=2, with_regeneration=True):
         """ Returns the account voting power
         """
         if with_regeneration:
-            diff_in_seconds = (datetime.utcnow().replace(tzinfo=timezone.utc) - formatTimeString(self["last_vote_time"])).total_seconds()
+            utc = pytz.timezone('UTC')
+            diff_in_seconds = (utc.localize(datetime.utcnow()) - formatTimeString(self["last_vote_time"])).total_seconds()
             regenerated_vp = diff_in_seconds * 10000 / 86400 / 5 / 100
         else:
             regenerated_vp = 0
@@ -384,12 +386,12 @@ def interest(self):
             "sbd_interest_rate"] / 100  # percent
         interest_amount = (interest_rate / 100) * int(
             int(self["sbd_seconds"]) / (60 * 60 * 24 * 356)) * 10**-3
-
+        utc = pytz.timezone('UTC')
         return {
             "interest": interest_amount,
             "last_payment": last_payment,
             "next_payment": next_payment,
-            "next_payment_duration": next_payment - datetime.now(timezone.utc),
+            "next_payment_duration": next_payment - utc.localize(datetime.now()),
             "interest_rate": interest_rate,
         }
 
@@ -421,7 +423,8 @@ def get_bandwidth(self, bandwidth_type=1, account=None, raw_data=False):
 
             total_seconds = 604800
             date_bandwidth = formatTimeString(self["last_bandwidth_update"])
-            seconds_since_last_update = datetime.utcnow().replace(tzinfo=timezone.utc) - date_bandwidth
+            utc = pytz.timezone('UTC')
+            seconds_since_last_update = utc.localize(datetime.utcnow()) - date_bandwidth
             seconds_since_last_update = seconds_since_last_update.total_seconds()
             average_bandwidth = float(self["average_bandwidth"])
             used_bandwidth = 0

beem/utils.py

@@ -6,7 +6,8 @@
 from builtins import next
 import re
 import time
-from datetime import datetime, timezone
+from datetime import datetime, tzinfo
+import pytz
 import difflib
 from .exceptions import ObjectNotInProposalBuffer
 
@@ -27,7 +28,8 @@ def formatTimeString(t):
     """
     if isinstance(t, datetime):
         return t.strftime(timeFormat)
-    return datetime.strptime(t, timeFormat).replace(tzinfo=timezone.utc)
+    utc = pytz.timezone('UTC')
+    return utc.localize(datetime.strptime(t, timeFormat))
 
 
 def formatTimeFromNow(secs=0):
@@ -47,7 +49,8 @@ def parse_time(block_time):
     """Take a string representation of time from the blockchain, and parse it
        into datetime object.
     """
-    return datetime.strptime(block_time, timeFormat).replace(tzinfo=timezone.utc)
+    utc = pytz.timezone('UTC')
+    return utc.localize(datetime.strptime(block_time, timeFormat))
 
 
 def assets_from_string(text):
@@ -108,7 +111,7 @@ def construct_authorperm(*args):
             construct_authorperm({'author': 'username',
                 'permlink': 'permlink'})
     """
-    username_prefix='@'
+    username_prefix = '@'
     if len(args) == 1:
         op = args[0]
         author, permlink = op['author'], op['permlink']
@@ -155,7 +158,7 @@ def construct_authorpermvoter(*args):
             construct_authorpermvoter({'author': 'username',
                 'permlink': 'permlink', 'voter': 'voter'})
     """
-    username_prefix='@'
+    username_prefix = '@'
     if len(args) == 1:
         op = args[0]
         if "authorperm" in op: