diff --git a/.gitignore b/.gitignore
new file mode 100644
index 00000000..7de7ad1e
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+/.stylegan2-cache/
+__pycache__/
diff --git a/run_generator.py b/run_generator.py
index 2f154143..339796c9 100755
--- a/run_generator.py
+++ b/run_generator.py
@@ -93,7 +93,7 @@ def _parse_num_range(s):
     range_re = re.compile(r'^(\d+)-(\d+)$')
     m = range_re.match(s)
     if m:
-        return range(int(m.group(1)), int(m.group(2))+1)
+        return list(range(int(m.group(1)), int(m.group(2))+1))
     vals = s.split(',')
     return [int(x) for x in vals]
 
diff --git a/run_projector.py b/run_projector.py
index bf18bd73..5fd89ed7 100755
--- a/run_projector.py
+++ b/run_projector.py
@@ -76,7 +76,7 @@ def _parse_num_range(s):
     range_re = re.compile(r'^(\d+)-(\d+)$')
     m = range_re.match(s)
     if m:
-        return range(int(m.group(1)), int(m.group(2))+1)
+        return list(range(int(m.group(1)), int(m.group(2))+1))
     vals = s.split(',')
     return [int(x) for x in vals]