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-rw-r--r--paramiko/kex_curve25519.py3
1 files changed, 2 insertions, 1 deletions
diff --git a/paramiko/kex_curve25519.py b/paramiko/kex_curve25519.py
index b092afae..4b9f6b00 100644
--- a/paramiko/kex_curve25519.py
+++ b/paramiko/kex_curve25519.py
@@ -20,7 +20,8 @@ class KexCurve25519(object):
self.transport = transport
self.key = None
- def is_available(self):
+ @classmethod
+ def is_available(cls):
try:
X25519PrivateKey.generate()
except UnsupportedAlgorithm: