安装错误1.4.1 MAC

Question

最近，我试图用的paramiko运行一段代码，代码简单地建立一个基本的SSH端口和代码可在其他机器上。但是，当我安装paramiko并在我自己的机器上运行代码时，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seeked答案，并表示，可能出现的问题可能我是，我没有加密1.4.1包。因此，我使用pip来安装软件包，出于某种原因，我在运行该程序时收到了相同的错误。

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) 

那么有人知道我的机器正在发生什么吗？在我安装crypto之前是否还有其他软件包需要安装？

我目前使用的Mac OSÿ优山美地和我的点子升级。

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

这是原来的代码：

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') 

希望这将有助于！

也即将版本的问题，我只是用PIP安装pycrypto（这是2.6.1版本），并同样的错误引起了尝试。

感谢您的大力帮助和耐心提前， 彼得

Answer 1

嘿，我得到了同样的问题。 我试过下面的说明，它的工作原理！ （从https://bugs.centos.org/view.php?id=12722&history=1 ptmcg提供）

这条线在包装模块的requirements.py：

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

使用已在pyparsing 2.0.2引入的功能，具体地使用“ expr（）“来复制表达式，在这种情况下是”MARKER_EXPR（）“。升级到2.1.10 pyparsing（最新版本）是行动的建议过程中，但是这也可以通过改变代码requirements.py固定：

MARKER_EXPR = originalTextFor(MARKER_EXPR)("marker") 

（在这条线，它实际上不是必要的使MARKER_EXPR的副本。）