diff --git a/taxcalc.egg-info/PKG-INFO b/taxcalc.egg-info/PKG-INFO
index b93fe2de9..59007e8e1 100644
--- a/taxcalc.egg-info/PKG-INFO
+++ b/taxcalc.egg-info/PKG-INFO
@@ -1,6 +1,6 @@
 Metadata-Version: 2.1
 Name: taxcalc
-Version: 4.3.0
+Version: 4.3.1
 Summary: taxcalc
 Home-page: https://github.com/PSLmodels/Tax-Calculator
 Download-URL: https://github.com/PSLmodels/Tax-Calculator
diff --git a/taxcalc/calculator.py b/taxcalc/calculator.py
index af2abbd84..353d09959 100644
--- a/taxcalc/calculator.py
+++ b/taxcalc/calculator.py
@@ -698,7 +698,8 @@ def mtr(self, variable_str='e00200p',
                                   self.policy_param('FICA_ss_trt_employee') +
                                   self.policy_param('FICA_mc_trt_employer') +
                                   self.policy_param('FICA_mc_trt_employee')),
-                           0.5 * (self.policy_param('FICA_mc_trt_employer') + self.policy_param('FICA_mc_trt_employee')))
+                           0.5 * (self.policy_param('FICA_mc_trt_employer') +
+                                  self.policy_param('FICA_mc_trt_employee')))
         else:
             adj = 0.0
         # compute marginal tax rates
@@ -1189,11 +1190,10 @@ def lines(text, num_indent_spaces, max_line_length=77):
                 for pname in baseline.keys():
                     upda_value = getattr(updated, pname)
                     base_value = getattr(baseline, pname)
+                    is_array = isinstance(upda_value, np.ndarray)
                     if (
-                        (isinstance(upda_value, np.ndarray) and
-                         np.allclose(upda_value, base_value)) or
-                        (not isinstance(upda_value, np.ndarray) and
-                         upda_value != base_value)
+                        (is_array and not np.allclose(upda_value, base_value))
+                        or (is_array == False and upda_value != base_value)
                     ):
                         params_with_diff.append(pname)
                 if params_with_diff:
diff --git a/taxcalc/growfactors.py b/taxcalc/growfactors.py
index 336d8ae74..8be68f1fb 100644
--- a/taxcalc/growfactors.py
+++ b/taxcalc/growfactors.py
@@ -38,7 +38,7 @@ class instance: GrowFactors
     which is for use with puf and cps data from the taxdata repository.
     """
 
-    PACKAGE_FILE_NAMES = ['growfactors.csv', 'tmd_growfactors.csv']
+    PACKAGE_FILE_NAMES = ['growfactors.csv']
     FILE_PATH = os.path.abspath(os.path.dirname(__file__))
 
     VALID_NAMES = set(['ABOOK', 'ACGNS', 'ACPIM', 'ACPIU',