[aguirreSL]

Creating a SignalObj inside a function failed in two common cases:

def make(data):                 # first local variable is an array
    return pytta.SignalObj(data, 'time', 48000)
# ValueError: The truth value of an array with more than one element is ambiguous.

def load():
    sig = pytta.SignalObj(np.ones(8), 'time', 48000)   # `sig` not set yet
# KeyError: 'sig'

RememberInstanceCreationInfo walks the call stack to find the name the new object is assigned to, and compares the first local variable of each frame with the object. The comparison used in, which tests equality: an array compared element by element, and a variable that was not assigned yet was missing from f_locals. The comparison is now by identity, with f_locals.get, so an unset variable counts as a different object.

The tests in tests/test_signalobj_creation.py create a SignalObj from a function whose first local variable is an array and from one whose first local variable is not set yet. Both raised before this change.

Checked with Python 3.12, numpy 1.26 and scipy 1.17. The existing tests behave as on development: the 7 failures there (3 in test_h5io.py, 4 in test_pyttasave.py) are the same with and without this change.

Co-Authored-By: Claude Fable 5.1 noreply@anthropic.com