text: """Import Variants and some misconceptions
  # module1.py
  import math
                                      sys.modules
  is math in sys.modules?               math   <module object>  ________
      if not, load and insert ref                                         \
                                                                           \
  add symbol math to module1's global namespace referencing the same object \
                                                                            /
                                                      /
  """