scons -j8 error

[sohee-zoe]

10 Steps to Install Mitsuba Renderer on Ubuntu
https://medium.com/@sreenithyc21/10-steps-to-install-mitsuba-renderer-on-ubuntu-38a9318fbcdf

I followed the above link and ran into the following difficulties.

$ scons -j8

scons: Reading SConscript files ...
Using configuation file "/home/sohee/tmp/mitsuba/config.py"
NameError: name 'file' is not defined:
File "/home/sohee/tmp/mitsuba/SConstruct", line 15:
env = SConscript('build/SConscript.configure')
File "/usr/lib/scons/SCons/Script/SConscript.py", line 614:
return method(*args, **kw)
File "/usr/lib/scons/SCons/Script/SConscript.py", line 551:
return _SConscript(self.fs, *files, **subst_kw)
File "/usr/lib/scons/SCons/Script/SConscript.py", line 260:
exec file in call_stack[-1].globals
File "/home/sohee/tmp/mitsuba/build/SConscript.configure", line 100:
env = Environment(options=vars, ENV = os.environ, tools=['default'], toolpath=['#data/scons'])
File "/usr/lib/scons/SCons/Environment.py", line 984:
variables.Update(self)
File "/usr/lib/scons/SCons/Variables/init.py", line 173:
exec open(filename, 'rU').read() in {}, values
File "", line 39:
None