Slicing of SolutionArray raises error #804
Description
System information
- Cantera version: 2.5.0a4
- OS: Ubuntu
- Python/MATLAB version: Python 3.6.8
Expected behavior
Slicing of SolutionArray objects should work as usual (as indexing is implemented).
Actual behavior
Slicing does not work.
To Reproduce
Steps to reproduce the behavior:
In [1]: import cantera as ct
...: gas = ct.Solution('gri30.yaml')
...: arr = ct.SolutionArray(gas, 10)
In [2]: arr[0]
Out[2]: <cantera.composite.SolutionArray at 0x7ffa61a364e0>
In [3]: arr[:]
---------------------------------------------------------------------------
AttributeError Traceback (most recent call last)
<ipython-input-5-47ed00660ce3> in <module>()
----> 1 arr[:]
/usr/local/lib/python3.6/dist-packages/cantera/composite.py in __getitem__(self, index)
534 def __getitem__(self, index):
535 states = self._states[index]
--> 536 shape = states.shape[:-1]
537 return SolutionArray(self._phase, shape, states)
538
AttributeError: 'list' object has no attribute 'shape'
Additional context
The error message clearly points at the issue.