mac 上的 paramiko 软件包 1.4.1 安装错误

Question

我最近正在尝试运行一段带有 paramiko 的代码，该代码只是构建一个基本的 ssh 端口并且可以在其他 machines 上使用该代码。但是，当我安装 paramiko 和运行我自己的代码 machine 时，它不起作用。我仔细检查了代码以确保它是相同的。然后我在编译时检查了错误，它说：

    import paramiko
  File "/Library/Python/2.7/site-packages/paramiko/__init__.py", line 30, in <module>
    from paramiko.transport import SecurityOptions, Transport
  File "/Library/Python/2.7/site-packages/paramiko/transport.py", line 33, in <module>
    from cryptography.hazmat.backends import default_backend
  File "/Library/Python/2.7/site-packages/cryptography/hazmat/backends/__init__.py", line 7, in <module>
    import pkg_resources
  File "/Library/Python/2.7/site-packages/pkg_resources/__init__.py", line 72, in <module>
    import packaging.requirements
  File "/Library/Python/2.7/site-packages/packaging/requirements.py", line 59, in <module>
    MARKER_EXPR = originalTextFor(MARKER_EXPR())("marker")
  TypeError: __call__() takes exactly 2 arguments (1 given)

我在网上寻找答案，它说我可能遇到的问题是我没有 crypto 1.4.1 包。因此，我使用 pip 安装包，由于某种原因，我收到了与运行安装程序相同的错误。

pip install crypto
Collecting crypto
  Using cached crypto-1.4.1-py2.py3-none-any.whl
Collecting shellescape (from crypto)
  Using cached shellescape-3.4.1-py2.py3-none-any.whl
Collecting Naked (from crypto)
  Using cached Naked-0.1.31-py2.py3-none-any.whl
Collecting requests (from Naked->crypto)
  Using cached requests-2.13.0-py2.py3-none-any.whl
Collecting pyyaml (from Naked->crypto)
  Using cached PyYAML-3.12.tar.gz
Exception:
Traceback (most recent call last):
  File "/Library/Python/2.7/site-packages/pip/basecommand.py", line 215, in main
    status = self.run(options, args)
  File "/Library/Python/2.7/site-packages/pip/commands/install.py", line 335, in run
    wb.build(autobuilding=True)
  File "/Library/Python/2.7/site-packages/pip/wheel.py", line 749, in build
    self.requirement_set.prepare_files(self.finder)
  File "/Library/Python/2.7/site-packages/pip/req/req_set.py", line 380, in prepare_files
    ignore_dependencies=self.ignore_dependencies))
  File "/Library/Python/2.7/site-packages/pip/req/req_set.py", line 634, in _prepare_file
    abstract_dist.prep_for_dist()
  File "/Library/Python/2.7/site-packages/pip/req/req_set.py", line 129, in prep_for_dist
    self.req_to_install.run_egg_info()
  File "/Library/Python/2.7/site-packages/pip/req/req_install.py", line 412, in run_egg_info
    self.setup_py, self.name,
  File "/Library/Python/2.7/site-packages/pip/req/req_install.py", line 387, in setup_py
    import setuptools  # noqa
  File "/Library/Python/2.7/site-packages/setuptools/__init__.py", line 12, in <module>
    import setuptools.version
  File "/Library/Python/2.7/site-packages/setuptools/version.py", line 1, in <module>
    import pkg_resources
  File "/Library/Python/2.7/site-packages/pkg_resources/__init__.py", line 72, in <module>
    import packaging.requirements
  File "/Library/Python/2.7/site-packages/packaging/requirements.py", line 59, in <module>
    MARKER_EXPR = originalTextFor(MARKER_EXPR())("marker")
TypeError: __call__() takes exactly 2 arguments (1 given)

所以有人知道我的 machine 是怎么回事吗？在安装 crypto 之前，我还需要安装任何其他软件包吗？

我目前正在使用 mac OS Y Yosemite 并且我的 pip 已升级。

************************更新****************** **********

这是原代码：

import threading
import paramiko
import subprocess

def ssh_command(ip,user,passwd,command):
    client = paramiko.SSHClient()
    client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
    client.connect(ip,username = user, password = passwd)
    ssh_session = client.get_transport().open_session()
    if ssh_session.active:
        ssh_session.exec_command(command)
        print ssh_session.recv(1024)
    return

ssh_command('192.168.100.301','GLZ','TripleBody','id')

希望这会有所帮助！

另外关于版本问题，我刚刚尝试使用pip安装pycrypto（这是2.6.1版本）并且出现了同样的错误。

在此先感谢您的大力帮助和耐心等待，彼得

Answer 1

嘿，我遇到了同样的问题。我尝试了以下说明并且有效！（由来自 https://bugs.centos.org/view.php?id=12722&history=1 的 ptmcg 提供）

This line in requirements.py of the packaging module:

MARKER_EXPR = originalTextFor(MARKER_EXPR())("marker")

使用 pyparsing 2.0.2 中引入的功能，特别是使用 "expr()" 复制表达式，在本例中为 "MARKER_EXPR()"。升级到 pyparsing 2.1.10（最新版本）是推荐的操作过程，但这也可以通过将 requirements.py 中的代码更改为：

来解决

MARKER_EXPR = originalTextFor(MARKER_EXPR)("marker")

(这一行其实不需要复制MARKER_EXPR。)

mac 上的 paramiko 软件包 1.4.1 安装错误

Installation Error on paramiko package 1.4.1 on mac

python

ssh

cryptography

paramiko