Lepší vyrábění dočasných adresářů

Chceme je po sobě nejspíš mazat i když to spadne. Možná to zesložití
vývoj, ale je to odolnější proti náhodnému pádu čehokoliv.

seminar/views/views_all.py

@@ -575,15 +575,14 @@ def obalkyView(request, resitele):
 
 	tex = render(request,'seminar/archiv/obalky.tex', {'resitele': resitele}).content
 
-	tempdir = tempfile.mkdtemp()
-	with open(tempdir+"/obalky.tex","w") as texfile:
-		texfile.write(tex.decode())
-	shutil.copy(find('seminar/lisak.pdf'), tempdir)
-	subprocess.call(["pdflatex","obalky.tex"], cwd = tempdir)
-
-	with open(tempdir+"/obalky.pdf","rb") as pdffile:
-		response = HttpResponse(pdffile.read(), content_type='application/pdf')
-	shutil.rmtree(tempdir)
+	with tempfile.TemporaryDirectory() as tempdir:
+		with open(tempdir+"/obalky.tex","w") as texfile:
+			texfile.write(tex.decode())
+		shutil.copy(find('seminar/lisak.pdf'), tempdir)
+		subprocess.call(["pdflatex","obalky.tex"], cwd = tempdir)
+
+		with open(tempdir+"/obalky.pdf","rb") as pdffile:
+			response = HttpResponse(pdffile.read(), content_type='application/pdf')
 	return response