code: def tryLoadingFrom(tryPath,moduleName='swhlab'):
      
      if not 'site-packages' in swhlab.__file__:
          print("loaded custom swhlab module from",
                os.path.dirname(swhlab.__file__))
          return # no need to warn if it's already outside.
      while len(tryPath)>5:
          sp=tryPath+"/swhlab/" # imaginary swhlab module path
          if os.path.isdir(sp) and os.path.exists(sp+"/__init__.py"):
              if not os.path.dirname(tryPath) in sys.path:
                  sys.path.insert(0,os.path.dirname(tryPath))
              print("#"*80)
              print("# WARNING: using site-packages swhlab module")
              print("#"*80)
          tryPath=os.path.dirname(tryPath)
      return
docs: if the module is in this path, load it from the local folder.