I'm using Python in Databricks on Azure. I've attempted to use *str.replace* but I get an error saying that the column names are not string type. The original file was uploaded as a *parquet* file; I'm not sure if this has something to do with the string error. Any ideas on how to remove the first two characters?

I included an image of the table for reference and an image of the string error.

```
df.columns = df.columns.str.replace('T$', '')

```

[![enter image description here](https://i.stack.imgur.com/khEht.png)](https://i.stack.imgur.com/khEht.png)

[![enter image description here](https://i.stack.imgur.com/jDeQR.png)](https://i.stack.imgur.com/jDeQR.png)