piskvorky/topic_modeling_tutorial — pull request #1 by allanw (2014-07-17 20:47:19+00:00)
Title: Make URL command line argument(s) optional. Change check for len(sys.argv) < 3 to len(sys.argv) < 2

Running the program with:

```
python download_data.py ./data
```

did not work as expected, since len(sys.argv) < 3 in this case (the value of len(sys.argv) is 2).