Do not capture errors in temp dir contexts (#963)

* fix: do not capture errors in the context

Author: psafont

appveyor.yml

@@ -41,7 +41,7 @@ build_script:
 
 test_script:
   - |
-    %PYTHON%\\python.exe -m coverage run --parallel-mode -m pytest --strict -p no:cacheprovider --junit-xml=tests.xml
+    %PYTHON%\\python.exe -m coverage run --parallel-mode -m pytest --strict -p no:cacheprovider -p no:stepwise --junit-xml=tests.xml
   - "%PYTHON%\\python.exe -m coverage combine"
   - "%PYTHON%\\python.exe -m coverage report"
   - "%PYTHON%\\python.exe -m coverage xml"

tests/util.py

@@ -77,7 +77,7 @@ def temp_dir(suffix=""):
     c_dir = tempfile.mkdtemp(suffix)
     try:
         yield c_dir
-    except:
+    finally:
         shutil.rmtree(c_dir)
 
 @contextlib.contextmanager