diff --git a/puppet/zulip/files/postgresql/process_fts_updates b/puppet/zulip/files/postgresql/process_fts_updates
index a23286874d..8ddd81da3d 100755
--- a/puppet/zulip/files/postgresql/process_fts_updates
+++ b/puppet/zulip/files/postgresql/process_fts_updates
@@ -25,7 +25,7 @@ import psycopg2.extensions
 import select
 import time
 import logging
-import six.moves.configparser
+import configparser
 import sys
 import os
 
@@ -80,7 +80,7 @@ except ImportError as e:
 #
 # However, we still also check the `USING_PGROONGA` variable, since
 # that's all we have in development.
-config_file = six.moves.configparser.RawConfigParser()
+config_file = configparser.RawConfigParser()
 config_file.read("/etc/zulip/zulip.conf")
 if config_file.has_option('machine', 'pgroonga'):
     USING_PGROONGA = True
diff --git a/scripts/lib/email-mirror-postfix b/scripts/lib/email-mirror-postfix
index 9ae24b0ade..7b0dbe7735 100755
--- a/scripts/lib/email-mirror-postfix
+++ b/scripts/lib/email-mirror-postfix
@@ -50,7 +50,7 @@ import json
 from six.moves.urllib.parse import urljoin, urlencode
 from six.moves.urllib.request import Request, urlopen
 from six.moves.urllib.error import HTTPError
-from six.moves.configparser import RawConfigParser
+from configparser import RawConfigParser
 from six import text_type
 
 
diff --git a/scripts/upgrade-zulip-from-git b/scripts/upgrade-zulip-from-git
index 6081d472f4..0b6258419f 100755
--- a/scripts/upgrade-zulip-from-git
+++ b/scripts/upgrade-zulip-from-git
@@ -1,6 +1,6 @@
 #!/usr/bin/env python3
 import os
-from six.moves import configparser
+import configparser
 import sys
 import subprocess
 import logging
diff --git a/scripts/zulip-puppet-apply b/scripts/zulip-puppet-apply
index e0bd77accf..ed0433ea92 100755
--- a/scripts/zulip-puppet-apply
+++ b/scripts/zulip-puppet-apply
@@ -3,7 +3,7 @@
 import os
 import sys
 import subprocess
-import six.moves.configparser as configparser
+import configparser
 import re
 
 force = False
diff --git a/tools/check-issue-labels b/tools/check-issue-labels
index 488135d933..08ecc411dd 100755
--- a/tools/check-issue-labels
+++ b/tools/check-issue-labels
@@ -6,7 +6,7 @@ import argparse
 import sys
 import os
 
-from six.moves.configparser import ConfigParser
+import ConfigParser
 from typing import Any, Dict, MutableMapping, Optional, Text
 
 # Scans zulip repositary for issues that don't have any `area` labels.
diff --git a/zerver/lib/bot_lib.py b/zerver/lib/bot_lib.py
index 5ebf52d537..438cb0ff85 100644
--- a/zerver/lib/bot_lib.py
+++ b/zerver/lib/bot_lib.py
@@ -12,7 +12,7 @@ from zerver.lib.bot_storage import get_bot_state, set_bot_state, \
     is_key_in_bot_state, get_bot_state_size, remove_bot_state
 from zerver.lib.integrations import EMBEDDED_BOTS
 
-from six.moves import configparser
+import configparser
 
 if False:
     from mypy_extensions import NoReturn
diff --git a/zilencer/management/commands/sync_api_key.py b/zilencer/management/commands/sync_api_key.py
index 2a2d31293a..f8b71e38f4 100644
--- a/zilencer/management/commands/sync_api_key.py
+++ b/zilencer/management/commands/sync_api_key.py
@@ -3,7 +3,7 @@ from typing import Any
 from django.core.management.base import BaseCommand
 from zerver.models import get_realm, get_user, UserProfile
 import os
-from six.moves.configparser import ConfigParser
+from configparser import ConfigParser
 
 class Command(BaseCommand):
     help = """Sync your API key from ~/.zuliprc into your development instance"""
@@ -15,12 +15,7 @@ class Command(BaseCommand):
             raise RuntimeError("No ~/.zuliprc found")
         config = ConfigParser()
         with open(config_file, 'r') as f:
-            # Apparently, six.moves.configparser.ConfigParser is not
-            # consistent between Python 2 and 3!
-            if hasattr(config, 'read_file'):
-                config.read_file(f, config_file)
-            else:
-                config.readfp(f, config_file)
+            config.read_file(f, config_file)
         api_key = config.get("api", "key")
         email = config.get("api", "email")
 
diff --git a/zproject/settings.py b/zproject/settings.py
index 11ab7b886d..63b651dcdf 100644
--- a/zproject/settings.py
+++ b/zproject/settings.py
@@ -15,7 +15,7 @@ import os
 import platform
 import time
 import sys
-import six.moves.configparser
+import configparser
 
 from zerver.lib.db import TimeTrackingConnection
 import zerver.lib.logging_util
@@ -26,14 +26,14 @@ import zerver.lib.logging_util
 
 DEPLOY_ROOT = os.path.join(os.path.realpath(os.path.dirname(__file__)), '..')
 
-config_file = six.moves.configparser.RawConfigParser()
+config_file = configparser.RawConfigParser()
 config_file.read("/etc/zulip/zulip.conf")
 
 # Whether this instance of Zulip is running in a production environment.
 PRODUCTION = config_file.has_option('machine', 'deploy_type')
 DEVELOPMENT = not PRODUCTION
 
-secrets_file = six.moves.configparser.RawConfigParser()
+secrets_file = configparser.RawConfigParser()
 if PRODUCTION:
     secrets_file.read("/etc/zulip/zulip-secrets.conf")
 else:
@@ -586,7 +586,7 @@ try:
     # For get_updates hostname sharding.
     domain = config_file.get('django', 'cookie_domain')
     CSRF_COOKIE_DOMAIN = '.' + domain
-except six.moves.configparser.Error:
+except configparser.Error:
     # Failing here is OK
     pass