When building gem5.opt, I get 'ImportError: no module named six'

问题

I'm new to gem5. New even to computer architecture. I am trying to build the gem5.opt using scons build/X86/gem5.opt I get an import error for module six:

➜  gem5 scons build/RISCV/gem5.opt
scons: Reading SConscript files ...
ImportError: No module named six.py:
  File "/home/hari/gem5/SConstruct", line 102:
    from m5.util import compareVersions, readCommand
  File "/home/hari/gem5/src/python/m5/util/__init__.py", line 54:
    from .smartdict import SmartDict
  File "/home/hari/gem5/src/python/m5/util/smartdict.py", line 46:
    import six.py

• I have tried reinstalling python using pacman,
• Tried reinstalling the module six using pip,
• downgraded urlib3 version,
• recloned the repo too. (deleting the previous one ofcourse)

回答1:

Update: OP confirmed in comments that it was a Python 2 vs Python 3 problem, the python 2 package was:

python2-six

Previous answer: The problem is likely that it should be import six instead of import six.py.

The current upstream master does the right thing: https://github.com/gem5/gem5/blob/526a2fb619f5e5c2c2a7f19498a737571df189b7/src/python/m5/util/smartdict.py#L46

Also I tried git log -p -G 'sys\.py' to find a fixing commit, but no results, so I wonder: are you using mainline gem5 on a clean tree?

Please always provide your gem5 git SHA when asking gem5 questions.

来源：https://stackoverflow.com/questions/56216358/when-building-gem5-opt-i-get-importerror-no-module-named-six