使用 pysftp 设置到服务器的测试连接

Question

我正在尝试建立到 sftp 服务器的测试连接。（如 Python Pysftp Error 所示）。我通过终端建立与服务器的第一个连接，从服务器获取了密钥。那工作完美无缺。但是，如果我运行 python 脚本：

import pysftp 
sftp = pysftp.Connection('test.rebex.net', username='demo', password='password') 
data = s.listdir() 
sftp.close() 
for i in data: 
    print(i)

我收到以下错误消息：

> Traceback (most recent call last):   File "/home/pi/Documents/Python
> Projects/ftp_connection.py", line 24, in <module>
>     sftp = pysftp.Connection('test.rebex.net', username='demo', password='password')   File
> "/usr/local/lib/python3.4/dist-packages/pysftp-0.2.9-py3.4.egg/pysftp/__init__.py",
> line 116, in __init__
>     self._cnopts = cnopts or CnOpts()   File "/usr/local/lib/python3.4/dist-packages/pysftp-0.2.9-py3.4.egg/pysftp/__init__.py",
> line 54, in __init__
>     self.hostkeys.load(knownhosts)   File "/usr/local/lib/python3.4/dist-packages/paramiko-2.1.2-py3.4.egg/paramiko/hostkeys.py",
> line 101, in load
>     e = HostKeyEntry.from_line(line, lineno)   File "/usr/local/lib/python3.4/dist-packages/paramiko-2.1.2-py3.4.egg/paramiko/hostkeys.py",
> line 335, in from_line
>     key = ECDSAKey(data=decodebytes(key), validate_point=False)   File "/usr/local/lib/python3.4/dist-packages/paramiko-2.1.2-py3.4.egg/paramiko/ecdsakey.py",
> line 138, in __init__
>     self.verifying_key = numbers.public_key(backend=default_backend())   File
> "/usr/local/lib/python3.4/dist-packages/cryptography-1.8.1-py3.4-linux-armv7l.egg/cryptography/hazmat/backends/__init__.py",
> line 74, in default_backend
>     _default_backend = MultiBackend(_available_backends())   File "/usr/local/lib/python3.4/dist-packages/cryptography-1.8.1-py3.4-linux-armv7l.egg/cryptography/hazmat/backends/__init__.py",
> line 31, in _available_backends
>     "cryptography.backends"   File "/usr/local/lib/python3.4/dist-packages/cryptography-1.8.1-py3.4-linux-armv7l.egg/cryptography/hazmat/backends/__init__.py",
> line 30, in <listcomp>
>     for ep in pkg_resources.iter_entry_points(   File "/usr/lib/python3/dist-packages/pkg_resources.py", line 2190, in load
>     ['__name__'])   File "/usr/local/lib/python3.4/dist-packages/cryptography-1.8.1-py3.4-linux-armv7l.egg/cryptography/hazmat/backends/openssl/__init__.py",
> line 7, in <module>
>     from cryptography.hazmat.backends.openssl.backend import backend   File
> "/usr/local/lib/python3.4/dist-packages/cryptography-1.8.1-py3.4-linux-armv7l.egg/cryptography/hazmat/backends/openssl/backend.py", line 49, in <module>
>     from cryptography.hazmat.bindings.openssl import binding   File "/usr/local/lib/python3.4/dist-packages/cryptography-1.8.1-py3.4-linux-armv7l.egg/cryptography/hazmat/bindings/openssl/binding.py", line 12, in <module>
>     from cryptography.hazmat.bindings._openssl import ffi, lib ImportError: libssl.so.1.1: cannot open shared object file: No such
> file or directory

我检查了 /etc/ld.so.conf.d/libc.conf 文件以查看搜索路径 /usr/local/lib。在上述路径中，我可以找到 libssl.so.1.1 文件。有没有人对如何解释错误消息有建议或知道我哪里出错了？非常感谢。

Answer 1

别打扰我了。解决方案很简单：结果我不得不运行:

sudo ldconfig

正如之前在 Linux error while loading shared libraries: cannot open shared object file: No such file or directory

中所建议的那样

使用 pysftp 设置到服务器的测试连接

Setting up test connection to server using pysftp

linux

python-3.x

pysftp

libssl