SFTP: add pyasn1 as dependency, needed if we are using Twisted >= 9.0.0.

diff --git a/_auto_deps.py b/_auto_deps.py
index ffe3c87f7e1824cf6cf34e5c6b9e5581c6f4b76d..e42b3636f25fb8a5c7c263760abe98728fca246a 100644 (file)
--- a/_auto_deps.py
+++ b/_auto_deps.py
@@ -28,8 +28,9 @@ install_requires=[
                   # .
                   "pycryptopp >= 0.5.15",
 
-                  # Needed for SFTP. Commented-out pending tests, see #953.
-                  # "pycrypto >= 2.0.1",
+                  # Needed for SFTP. pyasn1 is needed by twisted.conch in Twisted >= 9.0.
+                  "pycrypto >= 2.0.1",
+                  "pyasn1 >= 0.0.11a",
 
                   # Will be needed to test web apps, but not yet. See #1001.
                   #"windmill >= 1.3",