diff --git a/cclib/parser/data.py b/cclib/parser/data.py
index d4d5de046..592915ddf 100644
--- a/cclib/parser/data.py
+++ b/cclib/parser/data.py
@@ -227,15 +227,15 @@ def listify(self) -> None:
         attrlist = [k for k in self._attrlist if hasattr(self, k)]
         for k in attrlist:
             v = self._attributes[k].type
-            if v == numpy.ndarray:
+            if v is numpy.ndarray:
                 setattr(self, k, getattr(self, k).tolist())
-            elif v == list and k in self._listsofarrays:
+            elif v is list and k in self._listsofarrays:
                 setattr(self, k, [x.tolist() for x in getattr(self, k)])
-            elif v == dict and k in self._dictsofarrays:
+            elif v is dict and k in self._dictsofarrays:
                 items = getattr(self, k).items()
                 pairs = [(key, val.tolist()) for key, val in items]
                 setattr(self, k, dict(pairs))
-            elif v == dict and k in self._dictsofdicts:
+            elif v is dict and k in self._dictsofdicts:
                 items = getattr(self, k).items()
                 pairs = [
                     (key, {subkey: subval.tolist()})
@@ -253,15 +253,15 @@ def arrayify(self) -> None:
             precision = "d"
             if k in self._intarrays:
                 precision = "i"
-            if v == numpy.ndarray:
+            if v is numpy.ndarray:
                 setattr(self, k, numpy.array(getattr(self, k), precision))
-            elif v == list and k in self._listsofarrays:
+            elif v is list and k in self._listsofarrays:
                 setattr(self, k, [numpy.array(x, precision) for x in getattr(self, k)])
-            elif v == dict and k in self._dictsofarrays:
+            elif v is dict and k in self._dictsofarrays:
                 items = getattr(self, k).items()
                 pairs = [(key, numpy.array(val, precision)) for key, val in items]
                 setattr(self, k, dict(pairs))
-            elif v == dict and k in self._dictsofdicts:
+            elif v is dict and k in self._dictsofdicts:
                 items = getattr(self, k).items()
                 pairs = [
                     (
@@ -328,7 +328,7 @@ def typecheck(self) -> None:
         self.arrayify()
         for attr in [a for a in self._attrlist if hasattr(self, a)]:
             val = getattr(self, attr)
-            if type(val) == self._attributes[attr].type:
+            if type(val) is self._attributes[attr].type:
                 continue
 
             try:
diff --git a/cclib/parser/gaussianparser.py b/cclib/parser/gaussianparser.py
index 301d4e51c..adf44ec81 100644
--- a/cclib/parser/gaussianparser.py
+++ b/cclib/parser/gaussianparser.py
@@ -223,7 +223,7 @@ def extract(self, inputfile, line):
                     f"{self.YEAR_SUFFIXES_TO_YEARS[year_suffix]}+{revision}"
                 )
                 self.metadata["platform"] = groupdict["platform"]
-            run_date = next(inputfile).strip()
+            run_date = next(inputfile).strip()  # noqa: F841
 
         if line.strip().startswith("Link1:  Proceeding to internal job step number"):
             self.new_internal_job()