Bugfix possible out of sync temp paths. Add better cmd header for .cmd pipeline.

Author: heetbeet

src/Create new xlwings project.cmd

@@ -76,7 +76,7 @@ if __name__ == "__main__":
         f.write(pytext)
 
     # Write out to temp files readible by batch
-    tmp = Path(tempfile.mktemp()).parent
+    tmp = Path(os.environ['TEMP'])
 
     with open(tmp.joinpath("xlwings_pyfile.txt"), "w") as f:
         f.write(str(pyfile))

vatools/util.py

@@ -9,7 +9,12 @@ def _():''' 2>nul
     ::*******************************************************
     :: This is a .cmd header to define how to run this file
     ::*******************************************************
-    call "%localappdata%\PythonVA\bin\python\python" "%~dp0%~n0.cmd"
+    if not exist "%localappdata%\PythonVA\bin\python\python.exe" (
+        powershell -command "[reflection.assembly]::LoadWithPartialName('System.Windows.Forms')|out-null;[windows.forms.messagebox]::Show(\"Please install PythonVA in order to run this script:`r`n  https://github.com/AutoActuary/PythonVA/releases\", 'PythonVA not installed!')"
+        exit /b -1
+    )
+
+    call "%localappdata%\PythonVA\bin\python\python.exe" "%~dp0%~n0.cmd"
     __pause__
     exit /b %errorlevel%
 '''