Function get_from_env_or_user_or_default

configure.py:573–595

Get var_name either from env, or user or default. If var_name has been set as environment variable, use the preset value, else ask for user input. If no input is provided, the default is used. Args: environ_cp: copy of the os.environ. var_name: string for name of environment variable

(environ_cp, var_name, ask_for_var,
                                    var_default)

def get_from_env_or_user_or_default(environ_cp, var_name, ask_for_var,
                                    var_default):
  """Get var_name either from env, or user or default.

  If var_name has been set as environment variable, use the preset value, else
  ask for user input. If no input is provided, the default is used.

  Args:
    environ_cp: copy of the os.environ.
    var_name: string for name of environment variable, e.g. "TF_NEED_CUDA".
    ask_for_var: string for how to ask for user input.
    var_default: default value string.

  Returns:
    string value for var_name
  """
  var = environ_cp.get(var_name)
  if not var:
    var = get_input(ask_for_var)
    print('\n')
  if not var:
    var = var_default
  return var


def set_clang_cuda_compiler_path(environ_cp):