$ nixops --pdb info

Welcome to Python 3.7's help utility!

If this is your first time using Python, you should definitely check out
the tutorial on the Internet at https://docs.python.org/3.7/tutorial/.

Enter the name of any module, keyword, or topic to get help on writing
Python programs and using Python modules.  To quit this help utility and
return to the interpreter, just type "quit".

To get a list of available modules, keywords, symbols, or topics, type
"modules", "keywords", "symbols", or "topics".  Each module also comes
with a one-line summary of what it does; to list the modules whose name
or summary contain a given string such as "spam", type "modules spam".

help>

$ nixops --pdb info
Traceback (most recent call last):
  File "/nix/store/nlgrx0cl1l87nx0w660lb3jksn9jdca9-python3-3.7.6/lib/python3.7/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/nix/store/nlgrx0cl1l87nx0w660lb3jksn9jdca9-python3-3.7.6/lib/python3.7/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/home/grahamc/projects/github.com/NixOS/nixops/nixops/__main__.py", line 645, in <module>
    main()
  File "/home/grahamc/projects/github.com/NixOS/nixops/nixops/__main__.py", line 630, in main
    args.op(args)
  File "/home/grahamc/projects/github.com/NixOS/nixops/nixops/script_defs.py", line 207, in op_info
    ohnohelp()
NameError: name 'ohnohelp' is not defined
> /home/grahamc/projects/github.com/NixOS/nixops/nixops/script_defs.py(207)op_info()
-> ohnohelp()
(Pdb)