I'm going through Google's Python exercises and I need to be able to do this from the command line:

```
python babynames.py --summaryfile baby*.html

```

Where `python` is the Python shell, `babynames.py` is the Python program, `--summaryfile` is an argument to be interpreted by my `babynames` program, and `baby*.html` is the list of files matching that expression. However, it doesn't work and I'm not sure if the problem is the Windows command shell or Python. The `baby*.html` expression is not being expanded out to the full list of files, instead it's being passed strictly as a string. Can multiple files be passed to a Python program in such a way?