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-rwxr-xr-xexamples/treeview/floating_piecharts.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/examples/treeview/floating_piecharts.py b/examples/treeview/floating_piecharts.py
index ed057af..179c018 100755
--- a/examples/treeview/floating_piecharts.py
+++ b/examples/treeview/floating_piecharts.py
@@ -2,7 +2,7 @@ import sys
import random
from ete3 import Tree, faces, TreeStyle, COLOR_SCHEMES
-schema_names = COLOR_SCHEMES.keys()
+schema_names = list(COLOR_SCHEMES.keys())
def layout(node):
if not node.is_leaf():