MAINT: apply ruff/flake8-simplify rule SIM113

SIM113 Use `enumerate()` for index variable in `for` loop

Author: DimitriPapadopoulos

numpy/_core/code_generators/generate_umath.py

@@ -1376,10 +1376,9 @@ def make_arrays(funcdict):
         funclist = []
         datalist = []
         siglist = []
-        k = 0
         sub = 0
 
-        for t in uf.type_descriptions:
+        for k, t in enumerate(uf.type_descriptions):
             cfunc_alias = t.cfunc_alias if t.cfunc_alias else name
             cfunc_fname = None
             if t.func_data is FullTypeDescr:
@@ -1439,8 +1438,6 @@ def make_arrays(funcdict):
             for x in t.in_ + t.out:
                 siglist.append('NPY_%s' % (english_upper(chartoname[x]),))
 
-            k += 1
-
         if funclist or siglist or datalist:
             funcnames = ', '.join(funclist)
             signames = ', '.join(siglist)

numpy/matrixlib/defmatrix.py

@@ -18,8 +18,7 @@ def _convert_from_string(data):
 
     rows = data.split(';')
     newdata = []
-    count = 0
-    for row in rows:
+    for count, row in enumerate(rows):
         trow = row.split(',')
         newrow = []
         for col in trow:
@@ -29,7 +28,6 @@ def _convert_from_string(data):
             Ncols = len(newrow)
         elif len(newrow) != Ncols:
             raise ValueError("Rows not the same size.")
-        count += 1
         newdata.append(newrow)
     return newdata