Skip Python 2/3 only sections on each of these to achive actual 100% coverage when running on each

Author: ntninja

.coveragerc

@@ -7,3 +7,4 @@ precision = 1
 exclude_lines =
   pragma: no cover
   abc.abstractmethod
+  \# PY2

.coveragerc-py2

@@ -0,0 +1,10 @@
+[run]
+branch=True
+source=unasync
+
+[report]
+precision = 1
+exclude_lines =
+  pragma: no cover
+  abc.abstractmethod
+  \# PY3

ci/travis.sh

@@ -51,6 +51,16 @@ if [ "$USE_PYPY_RELEASE_VERSION" != "" ]; then
     source testenv/bin/activate
 fi
 
+case "${MACPYTHON:-${TRAVIS_PYTHON_VERSION:-}}" in
+	2*)
+		COVERAGE_FILE=.coveragerc-py2
+	;;
+
+	*)
+		COVERAGE_FILE=.coveragerc
+	;;
+esac
+
 pip install -U pip setuptools wheel
 
 if [ "$CHECK_FORMATTING" = "1" ]; then
@@ -91,7 +101,7 @@ else
     mkdir empty
     cd empty
 
-    pytest -ra -v --cov=unasync --cov-config=../.coveragerc --verbose ../tests
+    pytest -ra -v --cov=unasync --cov-config="../${COVERAGE_FILE}" --verbose ../tests
 
     bash <(curl -s https://codecov.io/bash)
 fi

src/unasync/__init__.py

@@ -67,7 +67,7 @@ def _match(self, filepath):
     def _unasync_file(self, filepath):
         with open(filepath, "rb") as f:
             write_kwargs = {}
-            if sys.version_info[0] >= 3:
+            if sys.version_info[0] >= 3:  # PY3  # pragma: no branch
                 encoding, _ = std_tokenize.detect_encoding(f.readline)
                 write_kwargs["encoding"] = encoding
                 f.seek(0)
@@ -128,11 +128,11 @@ def unasync_files(fpath_list, rules):
 
 
 def _get_tokens(f):
-    if sys.version_info[0] == 2:
+    if sys.version_info[0] == 2:  # PY2
         for tok in std_tokenize.generate_tokens(f.readline):
             type_, string, start, end, line = tok
             yield Token(type_, string, start, end, line)
-    else:
+    else:  # PY3
         for tok in std_tokenize.tokenize(f.readline):
             if tok.type == std_tokenize.ENCODING:
                 continue