content: """
  Command line output of information on QuTiP and dependencies.
  """
  __all__ = ['about']
  
  import sys
  import os
  import importlib.metadata
  import platform
  import numpy
  import scipy
  import inspect
  import qutip
  from qutip.settings import _blas_info, settings
  
  
  def about():
      """
      About box for QuTiP. Gives version numbers for QuTiP, NumPy, SciPy, Cython,
      and MatPlotLib and information about installed QuTiP family packages.
      """
      print("")
      print("QuTiP: Quantum Toolbox in Python")
      print("================================")
      print("Copyright (c) QuTiP team 2011 and later.")
      print(
          "Current admin team: Alexander Pitchford, "
          "Nathan Shammah, Shahnawaz Ahmed, Neill Lambert, Eric Giguère, "
          "Boxi Li, Simon Cross, Asier Galicia, Paul Menczel, "
          "and Patrick Hopf."
      )
      print(
          "Board members: Daniel Burgarth, Robert Johansson, Anton F. Kockum, "
          "Franco Nori and Will Zeng."
      )
      print("Original developers: R. J. Johansson & P. D. Nation.")
      print("Previous lead developers: Chris Granade & A. Grimsmo.")
      print("Currently developed through wide collaboration. "
            "See https://github.com/qutip for details.")
      print("")
      print("QuTiP Version:      %s" % qutip.__version__)
      print("Numpy Version:      %s" % numpy.__version__)
      print("Scipy Version:      %s" % scipy.__version__)
      try:
          import Cython
          cython_ver = Cython.__version__
      except ImportError:
          cython_ver = 'None'
      print("Cython Version:     %s" % cython_ver)
      try:
          import matplotlib
          matplotlib_ver = matplotlib.__version__
      except ImportError:
          matplotlib_ver = 'None'
      print("Matplotlib Version: %s" % matplotlib_ver)
      print("Python Version:     %d.%d.%d" % sys.version_info[0:3])
      print("Number of CPUs:     %s" % settings.num_cpus)
      print("BLAS Info:          %s" % _blas_info())
      # print("OPENMP Installed:   %s" % str(qutip.settings.has_openmp))
      print("INTEL MKL Ext:      %s" % settings.mkl_lib_location)
      print("Platform Info:      %s (%s)" % (platform.system(),
                                             platform.machine()))
      qutip_install_path = os.path.dirname(inspect.getsourcefile(qutip))
      print("Installation path:  %s" % qutip_install_path)
      print()
  
      # family packages
  
      print("Installed QuTiP family packages")
      print("-------------------------------")
      print()
  
      entrypoints = importlib.metadata.entry_points(group="qutip.family")
  
      if not entrypoints:
          print("No QuTiP family packages installed.")
  
      for ep in entrypoints:
          family_mod = ep.load()
          try:
              pkg, version = family_mod.version()
          except Exception as exc:
              pkg, version = ep.name, [str(exc)]
          print("%s: %s" % (pkg, version))
  
      print()
  
      # citation
      longbar = "=" * 80
      cite_msg = "For your convenience a bibtex reference can be easily"
      cite_msg += " generated using `qutip.cite()`"
      print(longbar)
      print("Please cite QuTiP in your publication.")
      print(longbar)
      print(cite_msg)
  
  
  if __name__ == "__main__":
      about()
  