code: def find_package(name, installed, package=False):
      '''Finds a package in the installed list.
  
      If `package` is true, match package names, otherwise, match import paths.
      '''
      if package:
          name = name.lower()
          tests = (
              lambda x: x.user and name == x.name.lower(),
              lambda x: x.local and name == x.name.lower(),
              lambda x: name == x.name.lower(),
          )
      else:
          tests = (
              lambda x: x.user and name in x.import_names,
              lambda x: x.local and name in x.import_names,
              lambda x: name in x.import_names,
          )
  
      for t in tests:
          try:
              found = list(filter(t, installed))
              if found and not found[0].is_scan:
                  return found[0]
          except StopIteration:
              pass
      return Nonf find_package(name, installed, package=False):
      '''Finds a package in the installed list.
  
      If `package` is true, match package names, otherwise, match import paths.
      '''
      if package:
          name = name.lower()
          tests = (
              lambda x: x.user and name == x.name.lower(),
              lambda x: x.local and name == x.name.lower(),
              lambda x: name == x.name.lower(),
          )
      else:
          tests = (
              lambda x: x.user and name in x.import_names,
              lambda x: x.local and name in x.import_names,
              lambda x: name in x.import_names,
          )
  
      for t in tests:
          try:
              found = list(filter(t, installed))
              if found and not found[0].is_scan:
                  return found[0]
          except StopIteration:
              pass
      return None
docs: Finds a package in the installed list.
  
      If `package` is true, match package names, otherwise, match import paths.