The previous implement will cause "Permission denied" for Windows system as try to open a already opened file.

Update the code to use another method to create a tmp file, but this method need to add code to close and remove the file with:
os.close()
os.remove()

Author: chinyeungli

about_code_tool/tests/test_genabout.py

@@ -500,16 +500,18 @@ def test_copy_license_files_test_path_endswith_slash(self):
 
     def test_write_licenses(self):
         gen = genabout.GenAbout()
-        tmp_license = tempfile.NamedTemporaryFile(suffix='.LICENSE', delete=True)
+        fh, tmp_license_name = tempfile.mkstemp()
         tmp_license_context = 'This is a test.'
-        input_list = [[tmp_license.name, tmp_license_context]]
+        input_list = [[tmp_license_name, tmp_license_context]]
         gen.write_licenses(input_list)
-        self.assertTrue(os.path.exists(tmp_license.name))
-        with open(tmp_license.name, "rU") as file_in:
+        self.assertTrue(os.path.exists(tmp_license_name))
+        with open(tmp_license_name, "rU") as file_in:
             context = ''
             for line in file_in.readlines():
                 context = line
         self.assertTrue(context == tmp_license_context)
+        os.close(fh)
+        os.remove(tmp_license_name)
 
     def test_process_dje_licenses(self):
         gen = genabout.GenAbout()