Initialization error? #69
Description
Please take a look at the following snippet (explanation after it):
(venv) pi@raspberrypi:~/mudpi-core $ python
Python 3.7.3 (default, Jul 25 2020, 13:03:44)
[GCC 8.3.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import board
>>> import adafruit_dht
>>> dht = None
>>> dht
>>> type(dht)
<class 'NoneType'>
>>> dht = adafruit_dht.DHT11(board.D26)
>>> Unable to set line 26 to input
>>> type(dht)
<class 'adafruit_dht.DHT11'>
>>> dht._use_pulseio
True
>>> dht = adafruit_dht.DHT11(board.D26, use_pulseio=False)
>>> dht._use_pulseio
False
>>> dht.temperature
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/home/pi/mudpi-core/venv/lib/python3.7/site-packages/adafruit_dht.py", line 243, in temperature
self.measure()
File "/home/pi/mudpi-core/venv/lib/python3.7/site-packages/adafruit_dht.py", line 199, in measure
raise RuntimeError("A full buffer was not returned. Try again.")
RuntimeError: A full buffer was not returned. Try again.
>>>Expected behavior:
Could not instantiate the DHT object as when setting the use_pluseio to False so behavior is the same and instantiation can be handled the same way.
Issue/Doubt:
Shouldn't the library raise an Exception when (by default) use_pulseio is set to True instead of actually instantiate the DHT11 object?
SBC: Raspberry Pi A+
Libraries:
Adafruit-Blinka==6.4.1
adafruit-circuitpython-dht==3.5.5
Adafruit-PlatformDetect==3.4.1
Adafruit-PureIO==1.1.8
Python: 3.7.3