Merge pull request #6365 from edgarcosta/noqq

No QQ defined in magma

Author: jwj61

lmfdb/api2/searchers.py

@@ -73,7 +73,6 @@ def register_search_function(name, human_name, description, auto_search=None, fu
     Only populate if you want to have full control over the search return
 
     """
-    global searchers
     searchers[name] = searcher(human_name, description, auto_search=auto_search, full_info=full_info, full_inventory=full_inventory, full_search=full_search, inv=inv)
 
 
@@ -90,6 +89,5 @@ def register_singleton(url, table, key=None, simple_search=None, full_search=Non
     full_search -- A function that performs a search itself and returns the results
     """
 
-    global singletons
     singletons[url] = {'table':table, 'key':key,
         'simple_search':simple_search, 'full_search':full_search}

lmfdb/higher_genus_w_automorphisms/main.py

@@ -292,7 +292,7 @@ def expr_error(err):
     return err_msg
 
 def expr_getc():
-    global cur_expr, cur_index
+    global cur_index
     while cur_index < len(cur_expr):
         result = cur_expr[cur_index]
         cur_index += 1

lmfdb/number_fields/code.yaml

@@ -123,7 +123,7 @@ class_number_formula:
     [polcoeff (lfunrootres (lfuncreate (K))[1][1][2], -1), 2^K.r1 * (2*Pi)^K.r2 * K.reg * K.no / (K.tu[1] * sqrt (abs (K.disc)))]
   magma: |
     /* self-contained Magma code snippet to compute the analytic class number formula */
-    Qx<x> := PolynomialRing(QQ); K<a> := NumberField(%s);
+    Qx<x> := PolynomialRing(Rationals()); K<a> := NumberField(%s);
     OK := Integers(K); DK := Discriminant(OK);
     UK, fUK := UnitGroup(OK); clK, fclK := ClassGroup(OK);
     r1,r2 := Signature(K); RK := Regulator(K); RR := Parent(RK);

lmfdb/utils/trace_hash.py

@@ -139,9 +139,6 @@ def TraceHashClass(iso, E):
     For curves over number fields the iso label should include the
     field label.
     """
-    global TH_dict
-    if iso in TH_dict:
-        return TH_dict[iso]
-    else:
-        th = TH_dict[iso] = TraceHash(E)
-        return th
+    if iso not in TH_dict:
+        TH_dict[iso] = TraceHash(E)
+    return TH_dict[iso]