What's the best way to read pd dataframe from local in Python? or How do I read pd dataframe from loc

For reading pd dataframe from local files efficiently, here’s a pro tip:

Pre-allocate memory by specifying `dtype` for each column. Pandas wastes time inferring types otherwise.

Also, `pd.read_feather()` is insanely fast for medium-sized data—way quicker than CSV/Excel.

Downside? Feather’s not as widely supported, but great for intermediate storage.