nandos@joseph:~$ pip3 install colorama pysnmp
Requirement already satisfied: colorama in ./.local/lib/python3.7/site-packages (0.4.1)
Requirement already satisfied: pysnmp in ./.local/lib/python3.7/site-packages (4.4.11)
Requirement already satisfied: pycryptodomex in ./.local/lib/python3.7/site-packages (from pysnmp) (3.8.2)
Requirement already satisfied: pyasn1>=0.2.3 in ./.local/lib/python3.7/site-packages (from pysnmp) (0.4.6)
Requirement already satisfied: pysmi in ./.local/lib/python3.7/site-packages (from pysnmp) (0.3.4)
Requirement already satisfied: ply in ./.local/lib/python3.7/site-packages (from pysmi->pysnmp) (3.11)
nandos@joseph:~$ pip3 install win_unicode_console
Requirement already satisfied: win_unicode_console in ./.local/lib/python3.7/site-packages (0.5)
nandos@joseph:~$ '/home/nandos/Downloads/PRET-master/pret.py'
Please install the 'colorama' module for color support.
Please install the 'pysnmp' module for SNMP support.
usage: pret.py [-h] [-s] [-q] [-d] [-i file] [-o file] target {ps,pjl,pcl}
pret.py: error: too few arguments
head -n 1您的 Python 应用程序上的输出表明它是一个 Python 2 应用程序。
您已安装指定库的 Python 3 版本，但未安装 Python 2 版本。Python 2 和 Python 3 解释器是不同的，您需要确保为正确的解释器安装了正确的库。
pip如果尚未安装 Python 2 及其对应的，请安装它，然后安装您需要的相应 Python 模块：
sudo apt install python-all python-pip
pip install colorama pysnmp
然后运行您的应用程序。如果它运行正常，它现在应该“正常工作”，前提是您实际上为程序提供了正确的参数来执行它在错误消息的最后一行中指示的操作。
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