diff --git a/port_stats/interactive.py b/port_stats/interactive.py
index 994b301..7a83843 100644
--- a/port_stats/interactive.py
+++ b/port_stats/interactive.py
@@ -159,7 +159,7 @@ def update_days(to=pager):
 
 def _spi_by_predicate(pred, colors):
     colors = colors or colorize.COLORS
-    return b'\n'.join(
+    return '\n'.join(
         reports.package_one_line(name, BY_NAME, PACKAGE_TASKS)
         for name in sorted(BY_NAME)
         if pred(name) and BY_NAME[name][0] in colors)
@@ -256,7 +256,7 @@ def fti(num, to=print):
 
 
 def _page_file(log_file, to):
-    with open(log_file, 'r') as f:
+    with open(log_file, 'rb') as f:
         log = f.read().decode('utf-8', errors='replace')
     to(log_file + ':\n\n' + log)
 
diff --git a/port_stats/lists.py b/port_stats/lists.py
index 90ba2e4..f1afe3e 100644
--- a/port_stats/lists.py
+++ b/port_stats/lists.py
@@ -14,16 +14,24 @@ from port_stats import rpm_ffi
 LOG = logging.getLogger(__name__)
 
 
+def _as_str(item):
+    if isinstance(item, str):
+        return item
+    if isinstance(item, bytes):
+        return item.decode('utf-8', errors='replace')
+    return str(item)
+
+
 class NEVR(collections.namedtuple('NEVR', ['name', 'epoch',
                                            'version', 'release'])):
 
     if rpm:
         @classmethod
         def from_header(cls, header):
-            return cls(header[rpm.RPMTAG_NAME],
-                       header[rpm.RPMTAG_EPOCH],
-                       header[rpm.RPMTAG_VERSION],
-                       header[rpm.RPMTAG_RELEASE])
+            return cls(_as_str(header[rpm.RPMTAG_NAME]),
+                       _as_str(header[rpm.RPMTAG_EPOCH]),
+                       _as_str(header[rpm.RPMTAG_VERSION]),
+                       _as_str(header[rpm.RPMTAG_RELEASE]))
 
     @classmethod
     def from_tsv_line(cls, line):
@@ -47,7 +55,7 @@ class NEVR(collections.namedtuple('NEVR', ['name', 'epoch',
                 LOG.error("Failed to parse epoch from line: %s",
                           line, exc_info=True)
                 return None
-        return cls(n, e, v, r)
+        return cls(_as_str(n), e, _as_str(v), _as_str(r))
 
     def format_evr(self):
         if self.epoch is None:
@@ -141,7 +149,7 @@ def read_src_dot_list(repo_path):
             try:
                 name, evr = line.split(b'\t', 2)[:2]
                 e, v, r = rpm_ffi.parse_evr(evr)
-                result.append(NEVR(name, e, v, r))
+                result.append(NEVR(_as_str(name), e, _as_str(v), _as_str(r)))
             except Exception:
                 LOG.warning('Failed to parse line %r', line, exc_info=True)
     finally: