[FIX] switchTo and add swithcBack

appveyor.yml

@@ -41,6 +41,7 @@ after_test:
   
   # Upload to pypi.
   # More precisely. Upload pypi the master builds, and to test-pypi any other builds.
+  # See more at https://stackoverflow.com/a/33662275/2506522
   - git branch | find "* master" > NUL & IF ERRORLEVEL 1 (  \
       twine upload -r testpypi dist\\wexpect*.tar.gz        \
     ) ELSE (                                                \

wexpect.py

@@ -2071,12 +2071,12 @@ class Wtty:
             logging.info(e)
             # In case of any error: We "switch back" (attach) our original console, then raise the
             # error.
-            win32console.AttachConsole(self.__parentPid)
+            self.switchBack()
             raise EOF('End Of File (EOF) in switchTo().')
         except:
             # In case of any error: We "switch back" (attach) our original console, then raise the
             # error.
-            win32console.AttachConsole(self.__parentPid)
+            self.switchBack()
             raise