Updated to pass latests linters (#3)

* Updated examples to appease pylint

examples/read_calram.py

@@ -47,11 +47,12 @@
     IP_ADDRESS = "127.0.0.1"
     # pylint: disable=used-before-assignment  # false positive
     gpib_device = AsyncPrologixGpibEthernetController(IP_ADDRESS, pad=27, timeout=1, eos_mode=EosMode.APPEND_NONE)
-
-if "async_gpib" in sys.modules:
+elif "async_gpib" in sys.modules:
     # Set the timeout to 1 second (T1s=11)
     # NI GPIB adapter
     gpib_device = AsyncGpib(name=0, pad=27, timeout=11)  # pylint: disable=used-before-assignment  # false positive
+else:
+    raise ImportWarning("No GPIB module loaded. Please check your imports")
 
 
 # This example will read the calibration memory and write it to a file named 'calram.bin'

examples/resistance.py

@@ -45,8 +45,7 @@
     IP_ADDRESS = "127.0.0.1"
     # pylint: disable=used-before-assignment  # false positive
     gpib_device = AsyncPrologixGpibEthernetController(IP_ADDRESS, pad=27, timeout=1, eos_mode=EosMode.APPEND_NONE)
-
-if "async_gpib" in sys.modules:
+elif "async_gpib" in sys.modules:
     # Create the gpib device. We need a timeout of > 10 PLC (20 ms), because the DMM might reply to a conversion request
     # and unable to reply to a status request during conversion (maximum time 10 PLC)
     # Set the timeout to 1 second (T1s=11)
@@ -60,6 +59,8 @@
     gpib_board = Gpib(name=0)
     gpib_board.config(0x7, True)  # enable wait for SRQs to speed up waiting for state changes
     gpib_board.close()
+else:
+    raise ImportWarning("No GPIB module loaded. Please check your imports")
 
 
 async def main():

examples/thermistor.py

@@ -46,8 +46,7 @@
     IP_ADDRESS = "127.0.0.1"
     # pylint: disable=used-before-assignment  # false positive
     gpib_device = AsyncPrologixGpibEthernetController(IP_ADDRESS, pad=27, timeout=1, eos_mode=EosMode.APPEND_NONE)
-
-if "async_gpib" in sys.modules:
+elif "async_gpib" in sys.modules:
     # Create the gpib device. We need a timeout of > 10 PLC (20 ms), because the DMM might reply to a conversion request
     # and unable to reply to a status request during conversion (maximum time 10 PLC)
     # Set the timeout to 1 second (T1s=11)
@@ -58,6 +57,8 @@
     gpib_board = Gpib(name=0)
     gpib_board.config(0x7, True)  # enable wait for SRQs to speed up waiting for state changes
     gpib_board.close()
+else:
+    raise ImportWarning("No GPIB module loaded. Please check your imports")
 
 
 # This example will log resistance data to the console

examples/write_calram.py

@@ -47,11 +47,12 @@
     IP_ADDRESS = "127.0.0.1"
     # pylint: disable=used-before-assignment  # false positive
     gpib_device = AsyncPrologixGpibEthernetController(IP_ADDRESS, pad=27, timeout=1, eos_mode=EosMode.APPEND_NONE)
-
-if "async_gpib" in sys.modules:
+elif "async_gpib" in sys.modules:
     # Set the timeout to 1 second (T1s=11)
     # NI GPIB adapter
     gpib_device = AsyncGpib(name=0, pad=27, timeout=11)  # pylint: disable=used-before-assignment  # false positive
+else:
+    raise ImportWarning("No GPIB module loaded. Please check your imports")
 
 
 async def main():

hp3478a_async/__init__.py

@@ -2,6 +2,7 @@
 This is an asyncIO library for the Hewlett Packard 3478A DMM. It includes all functions of DMM including some hidden
 function to read the non-volatile RAM and calibration constants of the device.
 """
+
 from ._version import __version__
 from .enums import FrontRearSwitchPosition, FunctionType, Range, TriggerType
 from .hp_3478a import HP_3478A, DmmStatus, NtcParameters

hp3478a_async/enums.py

@@ -1,4 +1,5 @@
 """Enums are used to represent the device functions and settings."""
+
 from __future__ import annotations
 
 from enum import Enum

hp3478a_async/flags.py

@@ -1,4 +1,5 @@
 """Flags are used for the status registers returned by the device."""
+
 from __future__ import annotations
 
 from enum import Flag

test_encoder_decoder.py

@@ -1,4 +1,5 @@
 """Unit test for the binary-coded decimal encoder/decoder used to encode/decode the calibration memory dumps."""
+
 # ##### BEGIN GPL LICENSE BLOCK #####
 #
 # Copyright (C) 2020  Patrick Baus