diff --git a/pyModeS/__init__.py b/pyModeS/__init__.py
index a2014df..4dacfcd 100644
--- a/pyModeS/__init__.py
+++ b/pyModeS/__init__.py
@@ -1,5 +1,3 @@
-from __future__ import absolute_import, print_function, division
-
 import os
 import warnings
 
diff --git a/pyModeS/decoder/__init__.py b/pyModeS/decoder/__init__.py
index c56a9b1..2987ed1 100644
--- a/pyModeS/decoder/__init__.py
+++ b/pyModeS/decoder/__init__.py
@@ -1,6 +1,3 @@
-from __future__ import absolute_import, print_function, division
-
-
 def tell(msg):
     from pyModeS import common, adsb, commb, bds
 
diff --git a/pyModeS/decoder/adsb.py b/pyModeS/decoder/adsb.py
index 41a92ca..501fa4b 100644
--- a/pyModeS/decoder/adsb.py
+++ b/pyModeS/decoder/adsb.py
@@ -13,8 +13,6 @@ The ADS-B wrapper also imports functions from the following modules:
 
 """
 
-from __future__ import absolute_import, print_function, division
-
 import pyModeS as pms
 
 from pyModeS import common
diff --git a/pyModeS/decoder/bds/__init__.py b/pyModeS/decoder/bds/__init__.py
index baea5b5..14b9959 100644
--- a/pyModeS/decoder/bds/__init__.py
+++ b/pyModeS/decoder/bds/__init__.py
@@ -18,7 +18,6 @@
 Common functions for Mode-S decoding
 """
 
-from __future__ import absolute_import, print_function, division
 import numpy as np
 
 from pyModeS.extra import aero
diff --git a/pyModeS/decoder/bds/bds05.py b/pyModeS/decoder/bds/bds05.py
index ed9575f..0b271a7 100644
--- a/pyModeS/decoder/bds/bds05.py
+++ b/pyModeS/decoder/bds/bds05.py
@@ -4,9 +4,6 @@
 #   Airborn position
 # ------------------------------------------
 
-
-from __future__ import absolute_import, print_function, division
-
 from pyModeS import common
 
 
diff --git a/pyModeS/decoder/bds/bds06.py b/pyModeS/decoder/bds/bds06.py
index 17c3fa1..95a96cf 100644
--- a/pyModeS/decoder/bds/bds06.py
+++ b/pyModeS/decoder/bds/bds06.py
@@ -4,8 +4,6 @@
 #   Surface position
 # ------------------------------------------
 
-from __future__ import absolute_import, print_function, division
-
 from pyModeS import common
 
 
diff --git a/pyModeS/decoder/bds/bds08.py b/pyModeS/decoder/bds/bds08.py
index 8bc03ae..3639c6f 100644
--- a/pyModeS/decoder/bds/bds08.py
+++ b/pyModeS/decoder/bds/bds08.py
@@ -4,8 +4,6 @@
 #   Aircraft identitification and category
 # ------------------------------------------
 
-from __future__ import absolute_import, print_function, division
-
 from pyModeS import common
 
 
diff --git a/pyModeS/decoder/bds/bds09.py b/pyModeS/decoder/bds/bds09.py
index aea62c8..8ed93a9 100644
--- a/pyModeS/decoder/bds/bds09.py
+++ b/pyModeS/decoder/bds/bds09.py
@@ -4,9 +4,6 @@
 #   Aircraft Airborn velocity
 # ------------------------------------------
 
-from __future__ import absolute_import, print_function, division
-from pyModeS.decoder import common
-
 from pyModeS import common
 
 
diff --git a/pyModeS/decoder/bds/bds10.py b/pyModeS/decoder/bds/bds10.py
index 7d51c34..abaa974 100644
--- a/pyModeS/decoder/bds/bds10.py
+++ b/pyModeS/decoder/bds/bds10.py
@@ -3,8 +3,6 @@
 # Data link capability report
 # ------------------------------------------
 
-from __future__ import absolute_import, print_function, division
-
 from pyModeS import common
 
 
diff --git a/pyModeS/decoder/bds/bds17.py b/pyModeS/decoder/bds/bds17.py
index 8dcc2fa..5a056c9 100644
--- a/pyModeS/decoder/bds/bds17.py
+++ b/pyModeS/decoder/bds/bds17.py
@@ -3,9 +3,6 @@
 #   Common usage GICB capability report
 # ------------------------------------------
 
-
-from __future__ import absolute_import, print_function, division
-
 from pyModeS import common
 
 
diff --git a/pyModeS/decoder/bds/bds20.py b/pyModeS/decoder/bds/bds20.py
index 6c3dcfd..60eb94e 100644
--- a/pyModeS/decoder/bds/bds20.py
+++ b/pyModeS/decoder/bds/bds20.py
@@ -3,8 +3,6 @@
 # Aircraft identification
 # ------------------------------------------
 
-from __future__ import absolute_import, print_function, division
-
 from pyModeS import common
 
 
diff --git a/pyModeS/decoder/bds/bds30.py b/pyModeS/decoder/bds/bds30.py
index 53c1ee9..a71eaeb 100644
--- a/pyModeS/decoder/bds/bds30.py
+++ b/pyModeS/decoder/bds/bds30.py
@@ -3,8 +3,6 @@
 # ACAS active resolution advisory
 # ------------------------------------------
 
-from __future__ import absolute_import, print_function, division
-
 from pyModeS import common
 
 
diff --git a/pyModeS/decoder/bds/bds40.py b/pyModeS/decoder/bds/bds40.py
index 008505b..aca5613 100644
--- a/pyModeS/decoder/bds/bds40.py
+++ b/pyModeS/decoder/bds/bds40.py
@@ -3,9 +3,7 @@
 # Selected vertical intention
 # ------------------------------------------
 
-from __future__ import absolute_import, print_function, division
 import warnings
-
 from pyModeS import common
 
 
diff --git a/pyModeS/decoder/bds/bds44.py b/pyModeS/decoder/bds/bds44.py
index 1ee5492..7e04de4 100644
--- a/pyModeS/decoder/bds/bds44.py
+++ b/pyModeS/decoder/bds/bds44.py
@@ -3,8 +3,6 @@
 # Meteorological routine air report
 # ------------------------------------------
 
-from __future__ import absolute_import, print_function, division
-
 from pyModeS import common
 
 
diff --git a/pyModeS/decoder/bds/bds45.py b/pyModeS/decoder/bds/bds45.py
index 2c581ae..f740457 100644
--- a/pyModeS/decoder/bds/bds45.py
+++ b/pyModeS/decoder/bds/bds45.py
@@ -3,8 +3,6 @@
 # Meteorological hazard report
 # ------------------------------------------
 
-from __future__ import absolute_import, print_function, division
-
 from pyModeS import common
 
 
diff --git a/pyModeS/decoder/bds/bds50.py b/pyModeS/decoder/bds/bds50.py
index 2d16f63..2a16999 100644
--- a/pyModeS/decoder/bds/bds50.py
+++ b/pyModeS/decoder/bds/bds50.py
@@ -3,8 +3,6 @@
 # Track and turn report
 # ------------------------------------------
 
-from __future__ import absolute_import, print_function, division
-
 from pyModeS import common
 
 
diff --git a/pyModeS/decoder/bds/bds53.py b/pyModeS/decoder/bds/bds53.py
index 8b8a8df..34e98ca 100644
--- a/pyModeS/decoder/bds/bds53.py
+++ b/pyModeS/decoder/bds/bds53.py
@@ -3,8 +3,6 @@
 # Air-referenced state vector
 # ------------------------------------------
 
-from __future__ import absolute_import, print_function, division
-
 from pyModeS import common
 
 
diff --git a/pyModeS/decoder/bds/bds60.py b/pyModeS/decoder/bds/bds60.py
index d9de28f..e2074fa 100644
--- a/pyModeS/decoder/bds/bds60.py
+++ b/pyModeS/decoder/bds/bds60.py
@@ -3,8 +3,6 @@
 # Heading and speed report
 # ------------------------------------------
 
-from __future__ import absolute_import, print_function, division
-
 from pyModeS import common
 
 
diff --git a/pyModeS/decoder/commb.py b/pyModeS/decoder/commb.py
index e444038..c4409f6 100644
--- a/pyModeS/decoder/commb.py
+++ b/pyModeS/decoder/commb.py
@@ -19,8 +19,6 @@ The Comm-B wrapper imports all functions from the following modules:
 
 """
 
-from __future__ import absolute_import, print_function, division
-
 # ELS - elementary surveillance
 from pyModeS.decoder.bds.bds10 import *
 from pyModeS.decoder.bds.bds17 import *
diff --git a/pyModeS/decoder/common.py b/pyModeS/decoder/common.py
index c1339a5..47ecb94 100644
--- a/pyModeS/decoder/common.py
+++ b/pyModeS/decoder/common.py
@@ -1,4 +1,3 @@
-from __future__ import absolute_import, print_function, division
 import numpy as np
 from textwrap import wrap
 
diff --git a/pyModeS/decoder/ehs.py b/pyModeS/decoder/ehs.py
index 8abf6ea..bb91a29 100644
--- a/pyModeS/decoder/ehs.py
+++ b/pyModeS/decoder/ehs.py
@@ -9,7 +9,6 @@ The EHS wrapper imports all functions from the following modules:
 
 """
 
-from __future__ import absolute_import, print_function, division
 import warnings
 
 from pyModeS.decoder.bds.bds40 import *
diff --git a/pyModeS/decoder/els.py b/pyModeS/decoder/els.py
index a028c9c..9c26b93 100644
--- a/pyModeS/decoder/els.py
+++ b/pyModeS/decoder/els.py
@@ -10,8 +10,6 @@ The ELS wrapper imports all functions from the following modules:
 
 """
 
-from __future__ import absolute_import, print_function, division
-
 from pyModeS.decoder.bds.bds10 import *
 from pyModeS.decoder.bds.bds17 import *
 from pyModeS.decoder.bds.bds20 import *
diff --git a/pyModeS/extra/__init__.py b/pyModeS/extra/__init__.py
index f298a61..e69de29 100644
--- a/pyModeS/extra/__init__.py
+++ b/pyModeS/extra/__init__.py
@@ -1 +0,0 @@
-from __future__ import absolute_import, print_function, division
diff --git a/pyModeS/extra/tcpclient.py b/pyModeS/extra/tcpclient.py
index 4216e3e..0f18c54 100644
--- a/pyModeS/extra/tcpclient.py
+++ b/pyModeS/extra/tcpclient.py
@@ -1,6 +1,5 @@
 """Stream beast raw data from a TCP server, convert to mode-s messages."""
 
-from __future__ import print_function, division
 import os
 import sys
 import time
diff --git a/pyModeS/streamer/decode.py b/pyModeS/streamer/decode.py
index cee02e0..5297262 100644
--- a/pyModeS/streamer/decode.py
+++ b/pyModeS/streamer/decode.py
@@ -1,4 +1,3 @@
-from __future__ import absolute_import, print_function, division
 import os
 import time
 import datetime
diff --git a/pyModeS/streamer/modeslive b/pyModeS/streamer/modeslive
index 6e803ee..47e7b58 100755
--- a/pyModeS/streamer/modeslive
+++ b/pyModeS/streamer/modeslive
@@ -1,6 +1,5 @@
 #!/usr/bin/env python
 
-from __future__ import print_function, division
 import os
 import sys
 import time
diff --git a/pyModeS/streamer/screen.py b/pyModeS/streamer/screen.py
index 5d83d41..ada1bf5 100644
--- a/pyModeS/streamer/screen.py
+++ b/pyModeS/streamer/screen.py
@@ -1,4 +1,3 @@
-from __future__ import print_function, division
 import curses
 import numpy as np
 import time
diff --git a/setup.py b/setup.py
index 9f62029..20aba5d 100644
--- a/setup.py
+++ b/setup.py
@@ -61,7 +61,7 @@ setup(
         "License :: OSI Approved :: GNU General Public License v3 (GPLv3)",
         # Specify the Python versions you support here. In particular, ensure
         # that you indicate whether you support Python 2, Python 3 or both.
-        "Programming Language :: Python :: 2",
+        # "Programming Language :: Python :: 2",
         "Programming Language :: Python :: 3",
     ],
     ext_modules=cythonize(extensions),
@@ -77,7 +77,7 @@ setup(
     # your project is installed. For an analysis of "install_requires" vs pip's
     # requirements files see:
     # https://packaging.python.org/en/latest/requirements.html
-    install_requires=["numpy", "argparse", "pyzmq", "pyrtlsdr"],
+    install_requires=["numpy", "pyzmq", "pyrtlsdr"],
     # List additional groups of dependencies here (e.g. development
     # dependencies). You can install these using the following syntax,
     # for example:
diff --git a/tests/sample_run_commb.py b/tests/sample_run_commb.py
index 9049cad..369f4e7 100644
--- a/tests/sample_run_commb.py
+++ b/tests/sample_run_commb.py
@@ -1,4 +1,3 @@
-from __future__ import print_function
 from pyModeS import commb, common, bds
 
 # === Decode sample data file ===