[ERROR] Loading module scapy.layers.cansocket_python_can

[marknefedov]

Hi, I've tried ICMP example this library with latest scapy on Rocky Linux 9.2 and got this
Python 3.9.16
Scapy 2.5.0
Robot Framework 6.1 (Python 3.9.16 on linux)

ScapyLibrary installed with pip install robotframework-ScapyLibrary

$ pip show robotframework-ScapyLibrary
Name: robotframework-ScapyLibrary
Version: 0.1.6
Summary: Scapy library for Robot Framework
Home-page: https://github.com/rainmanwy/robotframework-ScapyLibrary
Author: Wang Yang
Author-email: wang_yang1980@hotmail.com
License: Apache License 2.0
Location: /usr/local/lib/python3.9/site-packages
Requires: scapy
Required-by: 

Error in file '/root/eupf/robot/EstablishSession.robot' on line 2: Initializing library 'ScapyLibrary' with no arguments failed: TypeError: can only concatenate tuple (not "str") to tuple
Traceback (most recent call last):
  File "/usr/local/lib/python3.9/site-packages/ScapyLibrary/__init__.py", line 20, in __init__
    _base.__init__(self)
  File "/usr/local/lib/python3.9/site-packages/ScapyLibrary/keywords/layers.py", line 15, in __init__
    self._init_layers()
  File "/usr/local/lib/python3.9/site-packages/ScapyLibrary/keywords/layers.py", line 80, in _init_layers
    doc = protocol._name + '\n\n'
TypeError: can only concatenate tuple (not "str") to tuple
Loading module scapy.layers.cansocket_python_can
Traceback (most recent call last):
  File "/usr/local/lib/python3.9/site-packages/scapy/main.py", line 204, in load_contrib
    importlib.import_module("scapy.contrib." + name)
  File "/usr/lib64/python3.9/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1030, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1007, in _find_and_load
  File "<frozen importlib._bootstrap>", line 986, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 680, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 850, in exec_module
  File "<frozen importlib._bootstrap>", line 228, in _call_with_frames_removed
  File "/usr/local/lib/python3.9/site-packages/scapy/contrib/cansocket_python_can.py", line 29, in <module>
    from can import Message as can_Message
ModuleNotFoundError: No module named 'can'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/lib/python3.9/site-packages/scapy/main.py", line 156, in _load
    mod = importlib.import_module(module)
  File "/usr/lib64/python3.9/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1030, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1007, in _find_and_load
  File "<frozen importlib._bootstrap>", line 984, in _find_and_load_unlocked
ModuleNotFoundError: No module named 'scapy.layers.cansocket_python_can'

[marknefedov]

log.zip

[yeyuzhen]

@marknefedov I encountered the same problem. Finally, I fixed the problem by executing "pip3 install python-can" to install python-can package. This package contain "cansocket_python_can" module.