add python2 deprecation notice

Prepare for python2 removal in 20.11.

Signed-off-by: Louise Kilheeney <louise.kilheeney@intel.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Nicolas Chautru <nicolas.chautru@intel.com>

app/test-bbdev/test-bbdev.py

@@ -16,6 +16,10 @@ def kill(process):
     print("ERROR: Test app timed out")
     process.kill()
 
+if sys.version_info.major < 3:
+    print("WARNING: Python 2 is deprecated for use in DPDK, and will not work in future releases.", file=sys.stderr)
+    print("Please use Python 3 instead", file=sys.stderr)
+
 if "RTE_SDK" in os.environ:
     dpdk_path = os.environ["RTE_SDK"]
 else:

app/test-cmdline/cmdline_test.py

@@ -19,6 +19,9 @@ def runTest(child, test):
         return 0
     child.expect(test["Result"], 1)
 
+if sys.version_info.major < 3:
+    print("WARNING: Python 2 is deprecated for use in DPDK, and will not work in future releases.", file=sys.stderr)
+    print("Please use Python 3 instead", file=sys.stderr)
 
 #
 # history test is a special case

app/test/autotest.py

@@ -17,6 +17,10 @@ def usage():
     usage()
     sys.exit(1)
 
+if sys.version_info.major < 3:
+    print("WARNING: Python 2 is deprecated for use in DPDK, and will not work in future releases.", file=sys.stderr)
+    print("Please use Python 3 instead", file=sys.stderr)
+
 target = sys.argv[2]
 
 test_whitelist = None

devtools/update_version_map_abi.py

@@ -160,6 +160,10 @@ def __generate_internal_abi(f_out, lines):
     print("};", file=f_out)
 
 def __main():
+    if sys.version_info.major < 3:
+        print("WARNING: Python 2 is deprecated for use in DPDK, and will not work in future releases.", file=sys.stderr)
+        print("Please use Python 3 instead", file=sys.stderr)
+
     arg_parser = argparse.ArgumentParser(
         description='Merge versions in linker version script.')
 

usertools/cpu_layout.py

@@ -10,6 +10,10 @@
 except NameError:
     xrange = range # Python 3
 
+if sys.version_info.major < 3:
+    print("WARNING: Python 2 is deprecated for use in DPDK, and will not work in future releases.", file=sys.stderr)
+    print("Please use Python 3 instead", file=sys.stderr)
+
 sockets = []
 cores = []
 core_map = {}

usertools/dpdk-devbind.py

@@ -10,6 +10,10 @@
 import subprocess
 from os.path import exists, abspath, dirname, basename
 
+if sys.version_info.major < 3:
+    print("WARNING: Python 2 is deprecated for use in DPDK, and will not work in future releases.", file=sys.stderr)
+    print("Please use Python 3 instead", file=sys.stderr)
+
 # The PCI base class for all devices
 network_class = {'Class': '02', 'Vendor': None, 'Device': None,
                     'SVendor': None, 'SDevice': None}

usertools/dpdk-pmdinfo.py

@@ -28,7 +28,9 @@
 pcidb = None
 
 # ===========================================
-
+if sys.version_info.major < 3:
+        print("WARNING: Python 2 is deprecated for use in DPDK, and will not work in future releases.", file=sys.stderr)
+        print("Please use Python 3 instead", file=sys.stderr)
 
 class Vendor:
     """

usertools/dpdk-telemetry-client.py

@@ -23,6 +23,10 @@
 except NameError:
     raw_input = input  # Python 3
 
+if sys.version_info.major < 3:
+    print("WARNING: Python 2 is deprecated for use in DPDK, and will not work in future releases.", file=sys.stderr)
+    print("Please use Python 3 instead", file=sys.stderr)
+
 class Socket:
 
     def __init__(self):