diff --git a/examples/py/exchanges.py b/examples/py/exchanges.py
index a2df60b282769..caf13fefa7476 100644
--- a/examples/py/exchanges.py
+++ b/examples/py/exchanges.py
@@ -25,7 +25,7 @@ def underline(s): return style(s, '\033[4m')
 def log(*args):
     print(' '.join([str(arg) for arg in args]))
 
-log('The ccxt library supports', green(len(ccxt.exchanges)), 'exchanges:')
+log('The ccxt library supports', green(str(len(ccxt.exchanges))), 'exchanges:')
 
 # output a table of all exchanges
 log(pink('{:<15} {:<15} {:<15}'.format('id', 'name', 'URL')))