diff --git a/src/osmo_gsm_tester/osmo_ggsn.py b/src/osmo_gsm_tester/osmo_ggsn.py
index 2fdc792..0ece596 100644
--- a/src/osmo_gsm_tester/osmo_ggsn.py
+++ b/src/osmo_gsm_tester/osmo_ggsn.py
@@ -20,7 +20,7 @@
 import os
 import pprint
 
-from . import log, util, config, template, process, osmo_ctrl, pcap_recorder
+from . import log, util, config, template, process, pcap_recorder
 
 class OsmoGgsn(log.Origin):
 
diff --git a/src/osmo_gsm_tester/osmo_hlr.py b/src/osmo_gsm_tester/osmo_hlr.py
index a4633e3..1c361dd 100644
--- a/src/osmo_gsm_tester/osmo_hlr.py
+++ b/src/osmo_gsm_tester/osmo_hlr.py
@@ -18,11 +18,10 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 import os
-import re
 import pprint
 import sqlite3
 
-from . import log, util, config, template, process, osmo_ctrl, pcap_recorder
+from . import log, util, config, template, process, pcap_recorder
 
 class OsmoHlr(log.Origin):
     run_dir = None
diff --git a/src/osmo_gsm_tester/osmo_mgcpgw.py b/src/osmo_gsm_tester/osmo_mgcpgw.py
index 668e4ce..20bb689 100644
--- a/src/osmo_gsm_tester/osmo_mgcpgw.py
+++ b/src/osmo_gsm_tester/osmo_mgcpgw.py
@@ -20,7 +20,7 @@
 import os
 import pprint
 
-from . import log, util, config, template, process, osmo_ctrl, pcap_recorder
+from . import log, util, config, template, process, pcap_recorder
 
 class OsmoMgcpgw(log.Origin):
 
diff --git a/src/osmo_gsm_tester/osmo_mgw.py b/src/osmo_gsm_tester/osmo_mgw.py
index 1d5596e..ca7bd51 100644
--- a/src/osmo_gsm_tester/osmo_mgw.py
+++ b/src/osmo_gsm_tester/osmo_mgw.py
@@ -20,7 +20,7 @@
 import os
 import pprint
 
-from . import log, util, config, template, process, osmo_ctrl, pcap_recorder
+from . import log, util, config, template, process, pcap_recorder
 
 class OsmoMgw(log.Origin):
 
diff --git a/src/osmo_gsm_tester/osmo_sgsn.py b/src/osmo_gsm_tester/osmo_sgsn.py
index 07cf059..9ffaaed 100644
--- a/src/osmo_gsm_tester/osmo_sgsn.py
+++ b/src/osmo_gsm_tester/osmo_sgsn.py
@@ -20,7 +20,7 @@
 import os
 import pprint
 
-from . import log, util, config, template, process, osmo_ctrl, pcap_recorder
+from . import log, util, config, template, process, pcap_recorder
 
 class OsmoSgsn(log.Origin):
 
diff --git a/src/osmo_gsm_tester/pcap_recorder.py b/src/osmo_gsm_tester/pcap_recorder.py
index 70833d0..e0f0098 100644
--- a/src/osmo_gsm_tester/pcap_recorder.py
+++ b/src/osmo_gsm_tester/pcap_recorder.py
@@ -18,11 +18,8 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 import os
-import random
-import re
-import socket
 
-from . import log, util, config, template, process, osmo_ctrl
+from . import log, process
 
 class PcapRecorder(log.Origin):
 
diff --git a/src/osmo_gsm_tester/resource.py b/src/osmo_gsm_tester/resource.py
index 4f48dc4..29f641e 100644
--- a/src/osmo_gsm_tester/resource.py
+++ b/src/osmo_gsm_tester/resource.py
@@ -18,7 +18,6 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 import os
-import time
 import copy
 import atexit
 import pprint
@@ -27,8 +26,6 @@
 from . import config
 from . import util
 from . import schema
-from . import modem
-from . import osmo_nitb
 from . import bts_sysmo, bts_osmotrx, bts_osmovirtual, bts_octphy, bts_nanobts
 
 from .util import is_dict, is_list
diff --git a/src/osmo_gsm_tester/template.py b/src/osmo_gsm_tester/template.py
index 0ddfc84..c890963 100644
--- a/src/osmo_gsm_tester/template.py
+++ b/src/osmo_gsm_tester/template.py
@@ -18,8 +18,7 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-import os, sys
-from mako.template import Template
+import os
 from mako.lookup import TemplateLookup
 
 from . import log
diff --git a/src/osmo_gsm_tester/util.py b/src/osmo_gsm_tester/util.py
index 27c71cf..930c86a 100644
--- a/src/osmo_gsm_tester/util.py
+++ b/src/osmo_gsm_tester/util.py
@@ -27,9 +27,6 @@
 import atexit
 import threading
 import importlib.util
-import fcntl
-import tty
-import readline
 import subprocess
 
 # This mirrors enum osmo_auth_algo in libosmocore/include/osmocom/crypt/auth.h