made script consistent with readme

scripts/allmaps.py

@@ -1,5 +1,5 @@
 import sqlite3 as sql
-import subprocess
+import subprocess, traceback
 
 # get all maps in database 
 def getmaps(database):
@@ -32,11 +32,11 @@ def renderindex(template):
 
 def main():
     template = ""
-    with open("templates/overview.html", 'r') as fin:
+    with open("overview.html", 'r') as fin:
         template = fin.read()
     renderindex(template)
     maps  = getmaps("db/cts.db")
-    with open("templates/map.html", 'r') as fin:
+    with open("map.html", 'r') as fin:
         template = fin.read()
     # for each map generate an html file.
     for game_map in maps:
@@ -53,9 +53,15 @@ def main():
                 table=table)
             )
             # fout.write(template % (title, map_name, table))
-    pass
+    return True
 
 if __name__ == "__main__":
-    print("allmaps.py - Generating .html files for all maps.")
-    main()
+    success = False
+    try:
+        main()
+    except FileNotFoundError:
+        traceback.print_exc()
+        print("\n\t The script probably didn't find the page templates needed to generate a page. You can copy minimal working examples from the repository at templates/.")
+    if success:
+        print("allmaps.py - Generated pages for all maps.")
     pass