### Setup

I am reporting a problem with Biopython version, Python version, and operating
system as follows:

```python
import sys; print(sys.version)
import platform; print(platform.python_implementation()); print(platform.platform())
import Bio; print(Bio.__version__)
```

(*Please copy and run the above in your Python, and copy-and-paste the output*)

### Expected behaviour

(*Please fill this in*)

### Actual behaviour

(*Please fill this in, and provide any exception message in full*)

### Steps to reproduce

(*Please fill this in *)
