diff --git a/bots/check-rabbitmq-consumers b/bots/check-rabbitmq-consumers
index 071d2d5..d0103d3 100755
--- a/bots/check-rabbitmq-consumers
+++ b/bots/check-rabbitmq-consumers
@@ -4,10 +4,9 @@ import sys
 import time
 import optparse
 from collections import defaultdict
+import os
 
-from os import path, environ
-
-sys.path.append(path.join(path.dirname(__file__), '..'))
+sys.path.append(os.path.join(os.path.dirname(__file__), '..'))
 from zulip_tools import check_output
 
 states = {
@@ -17,7 +16,7 @@ states = {
     3: "UNKNOWN"
 }
 
-if 'USER' in environ and not environ['USER'] in ['root', 'rabbitmq']:
+if 'USER' in os.environ and not os.environ['USER'] in ['root', 'rabbitmq']:
     print "This script must be run as the root or rabbitmq user"
 
 
diff --git a/bots/check-rabbitmq-queue b/bots/check-rabbitmq-queue
index ef57dcb..d29bc20 100755
--- a/bots/check-rabbitmq-queue
+++ b/bots/check-rabbitmq-queue
@@ -3,10 +3,9 @@
 import sys
 import re
 import time
+import os
 
-from os import path, environ
-
-sys.path.append(path.join(path.dirname(__file__), '..'))
+sys.path.append(os.path.join(os.path.dirname(__file__), '..'))
 from zulip_tools import check_output
 
 WARN_THRESHOLD = 50
@@ -26,7 +25,7 @@ status = 0
 max_count = 0
 warn_queues = []
 
-if 'USER' in environ and not environ['USER'] in ['root', 'rabbitmq']:
+if 'USER' in os.environ and not os.environ['USER'] in ['root', 'rabbitmq']:
     print "This script must be run as the root or rabbitmq user"
 
 for line in output.split("\n"):
diff --git a/bots/gcal-bot b/bots/gcal-bot
index 38957bf..650c2d4 100755
--- a/bots/gcal-bot
+++ b/bots/gcal-bot
@@ -6,9 +6,9 @@ import optparse
 import urlparse
 import itertools
 import traceback
-from os import path
+import os
 
-sys.path.append(path.join(path.dirname(__file__), '../api'))
+sys.path.append(os.path.join(os.path.dirname(__file__), '../api'))
 import zulip
 
 parser = optparse.OptionParser(r"""
@@ -57,7 +57,7 @@ except ImportError:
 
 def get_calendar_url():
     parts = urlparse.urlparse(options.calendar)
-    pat = path.split(parts.path)
+    pat = os.path.split(parts.path)
     if pat[1] != 'basic':
         parser.error('The --calendar URL should be the XML "Private Address" ' +
                      'from your calendar settings')
diff --git a/bots/sync-public-streams b/bots/sync-public-streams
index ebbbefb..5f11ce3 100755
--- a/bots/sync-public-streams
+++ b/bots/sync-public-streams
@@ -1,13 +1,13 @@
 #!/usr/bin/env python
 import sys
-from os import path
+import os
 import logging
 import time
 import simplejson
 import subprocess
 import unicodedata
 
-sys.path.append(path.join(path.dirname(__file__), '..', 'api'))
+sys.path.append(os.path.join(os.path.dirname(__file__), '..', 'api'))
 import zulip
 
 zulip_client = zulip.Client()
diff --git a/bots/tddium-notify-humbug b/bots/tddium-notify-humbug
index 0dc7995..7e69115 100755
--- a/bots/tddium-notify-humbug
+++ b/bots/tddium-notify-humbug
@@ -22,7 +22,7 @@
 # SOFTWARE.
 
 import sys
-from os import path, environ
+import os
 
 
 # Configure this script as a Tddium post-build task and it will send
@@ -42,26 +42,26 @@ from os import path, environ
 # Here we assume it's in the parent of the directory
 # where this script lives.
 
-zulip_directory = path.join(path.dirname(__file__), '../api')
+zulip_directory = os.path.join(os.path.dirname(__file__), '../api')
 
 
 sys.path.append(zulip_directory)
 import zulip
 
 client = zulip.Client(
-    email   = environ['ZULIP_USER'],
-    api_key = environ.get('ZULIP_API_KEY'))
+    email   = os.environ['ZULIP_USER'],
+    api_key = os.environ.get('ZULIP_API_KEY'))
 
-tddium_server = environ.get('TDDIUM_API_SERVER', 'api.tddium.com')
-report_url    = 'https://%s/1/reports/%s' % (tddium_server, environ['TDDIUM_SESSION_ID'])
-repo_name     = path.basename(environ['TDDIUM_REPO_ROOT'])
+tddium_server = os.environ.get('TDDIUM_API_SERVER', 'api.tddium.com')
+report_url    = 'https://%s/1/reports/%s' % (tddium_server, os.environ['TDDIUM_SESSION_ID'])
+repo_name     = os.path.basename(os.environ['TDDIUM_REPO_ROOT'])
 
 result = client.send_message(dict(
     type    = 'stream',
-    to      = environ['ZULIP_STREAM'],
+    to      = os.environ['ZULIP_STREAM'],
     subject = 'build for ' + repo_name,
     content = '%s [%s](%s)' %
-        (repo_name, environ['TDDIUM_BUILD_STATUS'], report_url)))
+        (repo_name, os.environ['TDDIUM_BUILD_STATUS'], report_url)))
 
 if result['result'] != 'success':
     sys.stderr.write('Error sending to Zulip:\n%s\n' % (result['msg'],))
diff --git a/examples/edit-message b/examples/edit-message
index e9119f7..af61fb7 100755
--- a/examples/edit-message
+++ b/examples/edit-message
@@ -22,7 +22,7 @@
 # THE SOFTWARE.
 
 import sys
-from os import path
+import os
 import optparse
 
 usage = """edit-message [options] --message=<msg_id> --subject=<new subject> --content=<new content> --user=<sender's email address> --api-key=<sender's api key>
@@ -34,7 +34,7 @@ Example: edit-message --message-id="348135" --subject="my subject" --content="te
 You can omit --user and --api-key arguments if you have a properly set up ~/.zuliprc
 """
 
-sys.path.insert(0, path.join(path.dirname(__file__), '..'))
+sys.path.insert(0, os.path.join(os.path.dirname(__file__), '..'))
 import zulip
 
 parser = optparse.OptionParser(usage=usage)
diff --git a/examples/get-public-streams b/examples/get-public-streams
index ea2cc82..c71c354 100755
--- a/examples/get-public-streams
+++ b/examples/get-public-streams
@@ -22,7 +22,7 @@
 # THE SOFTWARE.
 
 import sys
-from os import path
+import os
 import optparse
 
 usage = """get-public-streams --user=<bot's email address> --api-key=<bot's api key> [options]
@@ -34,7 +34,7 @@ Example: get-public-streams --user=othello-bot@example.com --api-key=a0b1c2d3e4f
 You can omit --user and --api-key arguments if you have a properly set up ~/.zuliprc
 """
 
-sys.path.append(path.join(path.dirname(__file__), '..'))
+sys.path.append(os.path.join(os.path.dirname(__file__), '..'))
 import zulip
 
 parser = optparse.OptionParser(usage=usage)
diff --git a/examples/list-members b/examples/list-members
index 0976f66..2226bc3 100755
--- a/examples/list-members
+++ b/examples/list-members
@@ -22,7 +22,7 @@
 # THE SOFTWARE.
 
 import sys
-from os import path
+import os
 import optparse
 
 usage = """list-members --user=<bot's email address> --api-key=<bot's api key> [options]
@@ -32,7 +32,7 @@ List the names and e-mail addresses of the people in your realm.
 You can omit --user and --api-key arguments if you have a properly set up ~/.zuliprc
 """
 
-sys.path.append(path.join(path.dirname(__file__), '..'))
+sys.path.append(os.path.join(os.path.dirname(__file__), '..'))
 import zulip
 
 parser = optparse.OptionParser(usage=usage)
diff --git a/examples/list-subscriptions b/examples/list-subscriptions
index 00623af..4d674fc 100755
--- a/examples/list-subscriptions
+++ b/examples/list-subscriptions
@@ -22,7 +22,7 @@
 # THE SOFTWARE.
 
 import sys
-from os import path
+import os
 import optparse
 
 usage = """list-subscriptions --user=<bot's email address> --api-key=<bot's api key> [options]
@@ -33,7 +33,7 @@ Example: list-subscriptions --user=tabbott@zulip.com --api-key=a0b1c2d3e4f5a6b7c
 
 You can omit --user and --api-key arguments if you have a properly set up ~/.zuliprc
 """
-sys.path.append(path.join(path.dirname(__file__), '..'))
+sys.path.append(os.path.join(os.path.dirname(__file__), '..'))
 import zulip
 
 parser = optparse.OptionParser(usage=usage)
diff --git a/examples/print-messages b/examples/print-messages
index ac66dd0..d8077ff 100755
--- a/examples/print-messages
+++ b/examples/print-messages
@@ -22,7 +22,7 @@
 # THE SOFTWARE.
 
 import sys
-from os import path
+import os
 import optparse
 
 usage = """print-messages --user=<bot's email address> --api-key=<bot's api key> [options]
@@ -33,7 +33,7 @@ Example: print-messages --user=tabbott@zulip.com --api-key=a0b1c2d3e4f5a6b7c8d9e
 
 You can omit --user and --api-key arguments if you have a properly set up ~/.zuliprc
 """
-sys.path.append(path.join(path.dirname(__file__), '..'))
+sys.path.append(os.path.join(os.path.dirname(__file__), '..'))
 import zulip
 
 parser = optparse.OptionParser(usage=usage)
diff --git a/examples/print-next-message b/examples/print-next-message
index 5c0d3cb..e6334a3 100755
--- a/examples/print-next-message
+++ b/examples/print-next-message
@@ -22,7 +22,7 @@
 # THE SOFTWARE.
 
 import sys
-from os import path
+import os
 import optparse
 
 usage = """print-next-message --user=<bot's email address> --api-key=<bot's api key> [options]
@@ -33,7 +33,7 @@ Example: print-next-messages --user=tabbott@zulip.com --api-key=a0b1c2d3e4f5a6b7
 
 You can omit --user and --api-key arguments if you have a properly set up ~/.zuliprc
 """
-sys.path.append(path.join(path.dirname(__file__), '..'))
+sys.path.append(os.path.join(os.path.dirname(__file__), '..'))
 import zulip
 
 parser = optparse.OptionParser(usage=usage)
diff --git a/examples/send-message b/examples/send-message
index f9edabc..582ae6b 100755
--- a/examples/send-message
+++ b/examples/send-message
@@ -22,9 +22,9 @@
 # THE SOFTWARE.
 
 import sys
-from os import path
+import os
 import optparse
-sys.path.append(path.join(path.dirname(__file__), '..'))
+sys.path.append(os.path.join(os.path.dirname(__file__), '..'))
 import zulip
 
 usage = """send-message --user=<bot's email address> --api-key=<bot's api key> [options] <recipients>
diff --git a/examples/subscribe b/examples/subscribe
index 1593fe8..069f8ff 100755
--- a/examples/subscribe
+++ b/examples/subscribe
@@ -22,7 +22,7 @@
 # THE SOFTWARE.
 
 import sys
-from os import path
+import os
 import optparse
 
 usage = """subscribe --user=<bot's email address> --api-key=<bot's api key> [options] --streams=<streams>
@@ -34,7 +34,7 @@ Examples: subscribe --user=tabbott@zulip.com --api-key=a0b1c2d3e4f5a6b7c8d9e0f1a
 
 You can omit --user and --api-key arguments if you have a properly set up ~/.zuliprc
 """
-sys.path.append(path.join(path.dirname(__file__), '..'))
+sys.path.append(os.path.join(os.path.dirname(__file__), '..'))
 import zulip
 
 parser = optparse.OptionParser(usage=usage)
diff --git a/examples/unsubscribe b/examples/unsubscribe
index 104e03e..d2e1b86 100755
--- a/examples/unsubscribe
+++ b/examples/unsubscribe
@@ -22,7 +22,7 @@
 # THE SOFTWARE.
 
 import sys
-from os import path
+import os
 import optparse
 
 usage = """unsubscribe  --user=<bot's email address> --api-key=<bot's api key> [options] --streams=<streams>
@@ -34,7 +34,7 @@ Examples: unsubscribe --user=tabbott@zulip.com --api-key=a0b1c2d3e4f5a6b7c8d9e0f
 
 You can omit --user and --api-key arguments if you have a properly set up ~/.zuliprc
 """
-sys.path.append(path.join(path.dirname(__file__), '..'))
+sys.path.append(os.path.join(os.path.dirname(__file__), '..'))
 import zulip
 
 parser = optparse.OptionParser(usage=usage)