Update to Python3

Now Xtesting containers use Python3 instead of python2.
https://mail.python.org/pipermail/python-dev/2018-March/152348.html

It also updates robotframework to latest release.

Change-Id: I57e0d8b1af9aeaae0c445941a9bdf0b8bd346834
Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

2 files changed, 7 insertions, 7 deletions

diff --git a/xtesting/core/feature.py b/xtesting/core/feature.py
index 2730179f..f28e720c 100644
--- a/xtesting/core/feature.py
+++ b/xtesting/core/feature.py
@@ -111,10 +111,10 @@ class BashFeature(Feature):
                 process = subprocess.Popen(
                     cmd, shell=True, stdout=subprocess.PIPE,
                     stderr=subprocess.STDOUT)
-                for line in iter(process.stdout.readline, ''):
+                for line in iter(process.stdout.readline, b''):
                     if console:
-                        sys.stdout.write(line)
-                    f_stdout.write(line)
+                        sys.stdout.write(line.decode("utf-8"))
+                    f_stdout.write(line.decode("utf-8"))
                 process.wait()
             with open(self.result_file, 'r') as f_stdin:
                 self.__logger.debug("$ %s\n%s", cmd, f_stdin.read().rstrip())
diff --git a/xtesting/core/unit.py b/xtesting/core/unit.py
index f874d01f..774411a4 100644
--- a/xtesting/core/unit.py
+++ b/xtesting/core/unit.py
@@ -48,7 +48,7 @@ class Suite(testcase.TestCase):
         stats = subprocess.Popen(
             ['subunit-stats'], stdin=subprocess.PIPE, stdout=subprocess.PIPE)
         output, _ = stats.communicate(stream.read())
-        cls.__logger.info("\n\n%s", output)
+        cls.__logger.info("\n\n%s", output.decode("utf-8"))
 
     def generate_xunit(self, stream):
         """Generate junit report from subunit stream
@@ -62,7 +62,7 @@ class Suite(testcase.TestCase):
                 ['subunit2junitxml'], stdin=subprocess.PIPE,
                 stdout=subprocess.PIPE)
             output, _ = stats.communicate(stream.read())
-            xml.write(output)
+            xml.write(output.decode("utf-8"))
 
     def generate_html(self, stream):
         """Generate html report from subunit stream
@@ -113,12 +113,12 @@ class Suite(testcase.TestCase):
             self.start_time = time.time()
             if not os.path.isdir(self.res_dir):
                 os.makedirs(self.res_dir)
-            stream = six.StringIO()
+            stream = six.BytesIO()
             result = SubunitTestRunner(
                 stream=stream, verbosity=2).run(self.suite).decorated
             self.generate_stats(stream)
             self.generate_xunit(stream)
-            with open('{}/subunit_stream'.format(self.res_dir), 'w') as subfd:
+            with open('{}/subunit_stream'.format(self.res_dir), 'wb') as subfd:
                 stream.seek(0)
                 shutil.copyfileobj(stream, subfd)
             self.generate_html('{}/subunit_stream'.format(self.res_dir))