Short description
Using a NumPy record array as data to plot results in the following:
TypeError: Cannot compare structured or void to non-void arrays.
Code to reproduce
import pyqtgraph as pg
import numpy as np
data_array = np.recarray((10,), dtype=[('x', float), ('y', float)])
pg.plot(data_array)
pg.exec()Expected behavior
According to the API reference, a PlotDataItem can be initialized with a NumPy recarray with dtype=[('x', float), ('y', float), ...], so the above code should plot the (uninitialized) recarray data.
Real behavior
Traceback (most recent call last):
File "C:\Users\_\code\recarray_test.py", line 5, in <module>
pg.plot(data_array)
File "C:\Users\_\code\.venv\lib\site-packages\pyqtgraph\__init__.py", line 392, in plot
w.plot(*args, **dataArgs)
File "C:\Users\_\code\.venv\lib\site-packages\pyqtgraph\graphicsItems\PlotItem\PlotItem.py", line 630, in plot
item = PlotDataItem(*args, **kargs)
File "C:\Users\_\code\.venv\lib\site-packages\pyqtgraph\graphicsItems\PlotDataItem.py", line 375, in __init__
self.setData(*args, **kargs)
File "C:\Users\_\code\.venv\lib\site-packages\pyqtgraph\graphicsItems\PlotDataItem.py", line 719, in setData
if 'x' in data:
TypeError: Cannot compare structured or void to non-void arrays.
Tested environment(s)
- PyQtGraph version: 0.13.7
- Qt Python binding: PyQt6 6.8.1 Qt 6.8.2
- Python version: 3.9.13
- NumPy version: 2.0.2
- Operating system: Windows 11
- Installation method: pip
Short description
Using a NumPy record array as data to plot results in the following:
TypeError: Cannot compare structured or void to non-void arrays.Code to reproduce
Expected behavior
According to the API reference, a PlotDataItem can be initialized with a NumPy recarray with
dtype=[('x', float), ('y', float), ...], so the above code should plot the (uninitialized) recarray data.Real behavior
Tested environment(s)