Fix per numero di build vuoto.

loaih/__init__.py

@@ -87,11 +87,14 @@ class Base(object):
     def fullversion(version):
         """Get latest full version from Archive based on partial version."""
         versionlist = etree.HTML(urllib.request.urlopen(Definitions.ARCHIVE).read()).xpath(f"//td/a[starts-with(text(), '{version}')]/text()")
+        if versionlist:
             cleanlist = sorted([ x.strip('/') for x in versionlist ])
 
             # Sorting, then returning the last version
             return cleanlist[-1]
 
+        return None
+
     @staticmethod
     def urlfromqueryandver(query, version):
         """Returns the fetching URL based on the queried version and the numeric version of it."""
@@ -139,6 +142,11 @@ class Base(object):
         else:
             # Named query
             a = Base.namedver(query)
+
+            if not a:
+                # a is empty
+                return retval
+
             if isinstance(a, list) and len(a) > 1:
                 retval.extend([ RemoteBuild(query, version) for version in a ])
             else:
@@ -168,6 +176,10 @@ class RemoteBuild(object):
                 a = Base.namedver(self.query)
                 
                 if isinstance(a, list):
+                    # if the number of versions is zero, return and exit
+                    if not a:
+                        return None
+
                     if len(a) == 1:
                         # version is a single one.
                         self.version = a[0]