isksk: key = paramiko.RSAKey.from_private_key_file(pkey_file) 获取私钥总是出错： File "test", line 7, in key=paramiko.RSAKey.from_private_key_file(pkey_file) File "/usr/lib/python2.7/dist-packages/paramiko/pkey.py", line 198, in from_private_key_file key = cls(filename=filename, password=password) File "/usr/lib/python2.7/dist-packages/paramiko/rsakey.py", line 51, in __init__ self._from_private_key_file(filename, password) File "/usr/lib/python2.7/dist-packages/paramiko/rsakey.py", line 163, in _from_private_key_file data = self._read_private_key_file('RSA', filename, password) File "/usr/lib/python2.7/dist-packages/paramiko/pkey.py", line 280, in _read_private_key_file data = self._read_private_key(tag, f, password) File "/usr/lib/python2.7/dist-packages/paramiko/pkey.py", line 323, in _read_private_key raise PasswordRequiredException('Private key file is encrypted') paramiko.PasswordRequiredException: Private key file is encrypted 请问是什么问题呢？