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bzrlib/transport/ssh.py
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    except paramiko.SSHException, e:
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        # Don't know what happened, but just ignore it
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        pass
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    if 'password' not in supported_auth_types:
 
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    # We treat 'keyboard-interactive' and 'password' auth methods identically,
 
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    # because Paramiko's auth_password method will automatically try
 
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    # 'keyboard-interactive' auth (using the password as the response) if
 
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    # 'password' auth is not available.  Apparently some Debian and Gentoo
 
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    # OpenSSH servers require this.
 
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    # XXX: It's possible for a server to require keyboard-interactive auth that
 
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    # requires something other than a single password, but we currently don't
 
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    # support that.
 
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    if ('password' not in supported_auth_types and
 
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        'keyboard-interactive' not in supported_auth_types):
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        raise errors.ConnectionError('Unable to authenticate to SSH host as'
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            '\n  %s@%s\nsupported auth types: %s'
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            % (username, host, supported_auth_types))