Suspicious representation of DataShape class

I don't know if this is intended:

```
In []: import datashape

In []: datashape.DataShape((1,2), 'int32')
Out[]: dshape("(1, 2) * int32")
```

But I would say no.

I looked into the source, but the fix is not trivial for me.

Reproduce the DataShape example from the issue, then inspect the DataShape implementation and its representation logic in the source. The issue does not identify a file, test, or intended output, so first establish what representation is expected before defining completion.

Written by the indexing model from the issue text.