[roottest] Fix invalid setattr call in test

roottest/python/basic/PyROOT_datatypetest.py

@@ -6,10 +6,10 @@
 
 """Data type conversion unit tests for PyROOT package."""
 
 import os, sys, unittest
 sys.path.append(os.path.dirname( os.path.dirname(__file__)))
 
 from common import *
 from pytest import raises
 
 # Compatibility notes: set_char() and set_uchar() raise a TypeError in PyROOT
@@ -22,7 +22,7 @@
 is_64bit = sys.maxsize > 2**32
 
 def setup_module(mod):
     import sys, os
     if not os.path.exists('DataTypes.C'):
         os.chdir(os.path.dirname(__file__))
         err = os.system("make DataTypes_C")
@@ -55,8 +55,8 @@
         assert isinstance(c, CppyyTestData)
 
         # reading boolean type
         assert c.m_bool == False
         assert not c.get_bool(); assert not c.get_bool_cr(); assert not c.get_bool_r()
 
         # reading char types
         assert c.m_char  == 'a'
@@ -558,7 +558,7 @@
             setattr(gbl, 'g_'+name, adat)
             assert getattr(gbl, 'g_'+name)   == adat
             assert getattr(gbl, 'g_c_'+name) == cdat
-            raises(TypeError, setattr, 'g_c_'+name, acdat)
+            raises(TypeError, setattr, gbl, 'g_c_'+name, acdat)
             testcount += 1
         assert testcount == len(testdata)