Remove remaining Python 2 references

This changes two things in all applicable files:
- Remove imports from __future__
- Change default shebangs from /usr/bin/env python to /usr/bin/env
  python3

13 files changed, 11 insertions, 15 deletions

diff --git a/host/utils/b2xx_side_channel.py b/host/utils/b2xx_side_channel.py
index df4540a40..bb0a0156b 100755
--- a/host/utils/b2xx_side_channel.py
+++ b/host/utils/b2xx_side_channel.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 #
 # Copyright 2013-2015 Ettus Research LLC
diff --git a/host/utils/converter_benchmark.py b/host/utils/converter_benchmark.py
index 5e6cba11c..0f7f32937 100644
--- a/host/utils/converter_benchmark.py
+++ b/host/utils/converter_benchmark.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 #
 # Copyright 2015 Ettus Research LLC
 # Copyright 2018 Ettus Research, a National Instruments Company
@@ -9,7 +9,6 @@
 Wrap the converter_benchmark tool and produce prettier results.
 """
 
-from __future__ import print_function
 import argparse
 import csv
 import subprocess
diff --git a/host/utils/latency/graph.py b/host/utils/latency/graph.py
index a675bc7cd..0eb47081c 100755
--- a/host/utils/latency/graph.py
+++ b/host/utils/latency/graph.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 #
 # Copyright 2012 Ettus Research LLC
 # Copyright 2018 Ettus Research, a National Instruments Company
diff --git a/host/utils/latency/pci_hwdata.py b/host/utils/latency/pci_hwdata.py
index a0f969caa..f37df964d 100755
--- a/host/utils/latency/pci_hwdata.py
+++ b/host/utils/latency/pci_hwdata.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 #
 # Copyright 2013 Ettus Research LLC
 # Copyright 2018 Ettus Research, a National Instruments Company
diff --git a/host/utils/latency/run_tests.py b/host/utils/latency/run_tests.py
index e3056964d..63f1eef40 100755
--- a/host/utils/latency/run_tests.py
+++ b/host/utils/latency/run_tests.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 #
 # Copyright 2012 Ettus Research LLC
 # Copyright 2018 Ettus Research, a National Instruments Company
diff --git a/host/utils/rfnoc_blocktool/rfnoc_create_verilog.py b/host/utils/rfnoc_blocktool/rfnoc_create_verilog.py
index ce8d4cae7..cc5add95d 100644
--- a/host/utils/rfnoc_blocktool/rfnoc_create_verilog.py
+++ b/host/utils/rfnoc_blocktool/rfnoc_create_verilog.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 #
 # Copyright 2013-2015 Ettus Research LLC
diff --git a/host/utils/rfnoc_image_builder.py b/host/utils/rfnoc_image_builder.py
index a031621ca..3fa1ce6f4 100755
--- a/host/utils/rfnoc_image_builder.py
+++ b/host/utils/rfnoc_image_builder.py
@@ -16,8 +16,6 @@ You should have received a copy of the GNU General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.
 """
 
-from __future__ import print_function
-
 import sys
 import argparse
 import hashlib
diff --git a/host/utils/setup.py.in b/host/utils/setup.py.in
index f932c80ad..0731ce85b 100644
--- a/host/utils/setup.py.in
+++ b/host/utils/setup.py.in
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 from distutils.core import setup
 
diff --git a/host/utils/uhd_images_downloader.py.in b/host/utils/uhd_images_downloader.py.in
index 87dc9b3e3..de74d37e2 100644
--- a/host/utils/uhd_images_downloader.py.in
+++ b/host/utils/uhd_images_downloader.py.in
@@ -33,7 +33,6 @@ Inventory files are JSON files called `inventory.json`, by default. It is possib
 inventory file in command line arguments, but we don't recommend using this functionality unless
 you're really sure you need it.
 """
-from __future__ import print_function
 import argparse
 import hashlib
 import json
diff --git a/host/utils/usrp2_card_burner.py b/host/utils/usrp2_card_burner.py
index 7d904746e..b17b01549 100755
--- a/host/utils/usrp2_card_burner.py
+++ b/host/utils/usrp2_card_burner.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 #
 # Copyright 2010-2011 Ettus Research LLC
 # Copyright 2018 Ettus Research, a National Instruments Company
diff --git a/host/utils/usrp2_card_burner_gui.py b/host/utils/usrp2_card_burner_gui.py
index 5586fc770..edba1f7b4 100755
--- a/host/utils/usrp2_card_burner_gui.py
+++ b/host/utils/usrp2_card_burner_gui.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 #
 # Copyright 2010-2011 Ettus Research LLC
 # Copyright 2018 Ettus Research, a National Instruments Company
diff --git a/host/utils/usrp2_recovery.py b/host/utils/usrp2_recovery.py
index aca1d6f24..dc4ea31a9 100755
--- a/host/utils/usrp2_recovery.py
+++ b/host/utils/usrp2_recovery.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 #
 # Copyright 2010-2011 Ettus Research LLC
 # Copyright 2018 Ettus Research, a National Instruments Company
diff --git a/host/utils/x300_reset.py b/host/utils/x300_reset.py
index 7335c5d75..b00f10197 100755
--- a/host/utils/x300_reset.py
+++ b/host/utils/x300_reset.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 #
 # Copyright 2019 Ettus Research, a National Instruments Brand
 #