Toolkit written in Python that allows the user to create a software remote test bench to control an actual electronic test bench remotely.
Home Page: https://rtestbench.readthedocs.io/en/latest/
License: Open Software License 3.0
The installation works normally but it doesn't detect the USB device.
The solution was to install pyusb:
pip install pyusbhttps://techoverflow.net/2019/08/08/how-to-fix-pyvisa-not-finding-any-usb-instruments/
System information:
# uname -a
Linux umonslab 4.15.0-140-generic #144-Ubuntu SMP Fri Mar 19 14:12:35 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux
# python --version
Python 3.7.4It seems to have a conflict due to the visa package.
When the destructor of RTestBench is called, visa has probably already performed
logging.shutdown()which then makes no longer possible to log anything.
Found possibly related issues and pull requests:
Log :
Run pytest
============================= test session starts ==============================
platform linux -- Python 3.5.9, pytest-5.4.2, py-1.8.1, pluggy-0.13.1
rootdir: /home/runner/work/rtestbench/rtestbench
collected 71 items
rtestbench/tests/test_chat.py ... [ 4%]
rtestbench/tests/test_core.py .......... [ 18%]
rtestbench/tests/test_electrometer.py .......... [ 32%]
rtestbench/tests/test_factories.py ........... [ 47%]
rtestbench/tests/test_keysight_electrometers.py ................. [ 71%]
rtestbench/tests/test_logger.py .. [ 74%]
rtestbench/tests/test_meta.py E.EEEE [ 83%]
rtestbench/tests/test_tool.py ............ [100%]
==================================== ERRORS ====================================
______________________ ERROR at setup of test_initialize _______________________
tmp_path = PosixPath('/tmp/pytest-of-runner/pytest-0/test_initialize0')
@pytest.fixture
def meta_man(tmp_path):
"""Returns a MetaDataManager."""
d = tmp_path / "json"
d.mkdir()
f = d / "meta_file"
> man = meta.MetaDataManager(f)
rtestbench/tests/test_meta.py:28:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
rtestbench/_meta.py:27: in __init__
self._file_path = Path(file_path)
/opt/hostedtoolcache/Python/3.5.9/x64/lib/python3.5/pathlib.py:969: in __new__
self = cls._from_parts(args, init=False)
/opt/hostedtoolcache/Python/3.5.9/x64/lib/python3.5/pathlib.py:651: in _from_parts
drv, root, parts = self._parse_args(args)
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
cls = <class 'pathlib.PosixPath'>
args = (PosixPath('/tmp/pytest-of-runner/pytest-0/test_initialize0/json/meta_file'),)
@classmethod
def _parse_args(cls, args):
# This is useful when you don't want to create an instance, just
# canonicalize some constructor arguments.
parts = []
for a in args:
if isinstance(a, PurePath):
parts += a._parts
elif isinstance(a, str):
# Force-cast str subclasses to str (issue #21127)
parts.append(str(a))
else:
raise TypeError(
"argument should be a path or str object, not %r"
> % type(a))
E TypeError: argument should be a path or str object, not <class 'pathlib2.PosixPath'>
/opt/hostedtoolcache/Python/3.5.9/x64/lib/python3.5/pathlib.py:643: TypeError
_________________ ERROR at setup of test_dump_meta[json_data0] _________________
tmp_path = PosixPath('/tmp/pytest-of-runner/pytest-0/test_dump_meta_json_data0_0')
@pytest.fixture
def meta_man(tmp_path):
"""Returns a MetaDataManager."""
d = tmp_path / "json"
d.mkdir()
f = d / "meta_file"
> man = meta.MetaDataManager(f)
rtestbench/tests/test_meta.py:28:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
rtestbench/_meta.py:27: in __init__
self._file_path = Path(file_path)
/opt/hostedtoolcache/Python/3.5.9/x64/lib/python3.5/pathlib.py:969: in __new__
self = cls._from_parts(args, init=False)
/opt/hostedtoolcache/Python/3.5.9/x64/lib/python3.5/pathlib.py:651: in _from_parts
drv, root, parts = self._parse_args(args)
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
cls = <class 'pathlib.PosixPath'>
args = (PosixPath('/tmp/pytest-of-runner/pytest-0/test_dump_meta_json_data0_0/json/meta_file'),)
@classmethod
def _parse_args(cls, args):
# This is useful when you don't want to create an instance, just
# canonicalize some constructor arguments.
parts = []
for a in args:
if isinstance(a, PurePath):
parts += a._parts
elif isinstance(a, str):
# Force-cast str subclasses to str (issue #21127)
parts.append(str(a))
else:
raise TypeError(
"argument should be a path or str object, not %r"
> % type(a))
E TypeError: argument should be a path or str object, not <class 'pathlib2.PosixPath'>
/opt/hostedtoolcache/Python/3.5.9/x64/lib/python3.5/pathlib.py:643: TypeError
_________________ ERROR at setup of test_dump_meta[json_data1] _________________
tmp_path = PosixPath('/tmp/pytest-of-runner/pytest-0/test_dump_meta_json_data1_0')
@pytest.fixture
def meta_man(tmp_path):
"""Returns a MetaDataManager."""
d = tmp_path / "json"
d.mkdir()
f = d / "meta_file"
> man = meta.MetaDataManager(f)
rtestbench/tests/test_meta.py:28:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
rtestbench/_meta.py:27: in __init__
self._file_path = Path(file_path)
/opt/hostedtoolcache/Python/3.5.9/x64/lib/python3.5/pathlib.py:969: in __new__
self = cls._from_parts(args, init=False)
/opt/hostedtoolcache/Python/3.5.9/x64/lib/python3.5/pathlib.py:651: in _from_parts
drv, root, parts = self._parse_args(args)
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
cls = <class 'pathlib.PosixPath'>
args = (PosixPath('/tmp/pytest-of-runner/pytest-0/test_dump_meta_json_data1_0/json/meta_file'),)
@classmethod
def _parse_args(cls, args):
# This is useful when you don't want to create an instance, just
# canonicalize some constructor arguments.
parts = []
for a in args:
if isinstance(a, PurePath):
parts += a._parts
elif isinstance(a, str):
# Force-cast str subclasses to str (issue #21127)
parts.append(str(a))
else:
raise TypeError(
"argument should be a path or str object, not %r"
> % type(a))
E TypeError: argument should be a path or str object, not <class 'pathlib2.PosixPath'>
/opt/hostedtoolcache/Python/3.5.9/x64/lib/python3.5/pathlib.py:643: TypeError
____________________ ERROR at setup of test_dump_timestamp _____________________
tmp_path = PosixPath('/tmp/pytest-of-runner/pytest-0/test_dump_timestamp0')
@pytest.fixture
def meta_man(tmp_path):
"""Returns a MetaDataManager."""
d = tmp_path / "json"
d.mkdir()
f = d / "meta_file"
> man = meta.MetaDataManager(f)
rtestbench/tests/test_meta.py:28:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
rtestbench/_meta.py:27: in __init__
self._file_path = Path(file_path)
/opt/hostedtoolcache/Python/3.5.9/x64/lib/python3.5/pathlib.py:969: in __new__
self = cls._from_parts(args, init=False)
/opt/hostedtoolcache/Python/3.5.9/x64/lib/python3.5/pathlib.py:651: in _from_parts
drv, root, parts = self._parse_args(args)
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
cls = <class 'pathlib.PosixPath'>
args = (PosixPath('/tmp/pytest-of-runner/pytest-0/test_dump_timestamp0/json/meta_file'),)
@classmethod
def _parse_args(cls, args):
# This is useful when you don't want to create an instance, just
# canonicalize some constructor arguments.
parts = []
for a in args:
if isinstance(a, PurePath):
parts += a._parts
elif isinstance(a, str):
# Force-cast str subclasses to str (issue #21127)
parts.append(str(a))
else:
raise TypeError(
"argument should be a path or str object, not %r"
> % type(a))
E TypeError: argument should be a path or str object, not <class 'pathlib2.PosixPath'>
/opt/hostedtoolcache/Python/3.5.9/x64/lib/python3.5/pathlib.py:643: TypeError
_____________________ ERROR at setup of test_dump_run_info _____________________
tmp_path = PosixPath('/tmp/pytest-of-runner/pytest-0/test_dump_run_info0')
@pytest.fixture
def meta_man(tmp_path):
"""Returns a MetaDataManager."""
d = tmp_path / "json"
d.mkdir()
f = d / "meta_file"
> man = meta.MetaDataManager(f)
rtestbench/tests/test_meta.py:28:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
rtestbench/_meta.py:27: in __init__
self._file_path = Path(file_path)
/opt/hostedtoolcache/Python/3.5.9/x64/lib/python3.5/pathlib.py:969: in __new__
self = cls._from_parts(args, init=False)
/opt/hostedtoolcache/Python/3.5.9/x64/lib/python3.5/pathlib.py:651: in _from_parts
drv, root, parts = self._parse_args(args)
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
cls = <class 'pathlib.PosixPath'>
args = (PosixPath('/tmp/pytest-of-runner/pytest-0/test_dump_run_info0/json/meta_file'),)
@classmethod
def _parse_args(cls, args):
# This is useful when you don't want to create an instance, just
# canonicalize some constructor arguments.
parts = []
for a in args:
if isinstance(a, PurePath):
parts += a._parts
elif isinstance(a, str):
# Force-cast str subclasses to str (issue #21127)
parts.append(str(a))
else:
raise TypeError(
"argument should be a path or str object, not %r"
> % type(a))
E TypeError: argument should be a path or str object, not <class 'pathlib2.PosixPath'>
/opt/hostedtoolcache/Python/3.5.9/x64/lib/python3.5/pathlib.py:643: TypeError
=============================== warnings summary ===============================
rtestbench/tests/test_tool.py::ToolTest::test_query_data
/opt/hostedtoolcache/Python/3.5.9/x64/lib/python3.5/site-packages/pyvisa/util.py:210: DeprecationWarning: string or file could not be read to its end due to unmatched data; this will raise a ValueError in the future.
sep=separator)
-- Docs: https://docs.pytest.org/en/latest/warnings.html
=========================== short test summary info ============================
ERROR rtestbench/tests/test_meta.py::test_initialize - TypeError: argument sh...
ERROR rtestbench/tests/test_meta.py::test_dump_meta[json_data0] - TypeError: ...
ERROR rtestbench/tests/test_meta.py::test_dump_meta[json_data1] - TypeError: ...
ERROR rtestbench/tests/test_meta.py::test_dump_timestamp - TypeError: argumen...
ERROR rtestbench/tests/test_meta.py::test_dump_run_info - TypeError: argument...
=================== 66 passed, 1 warning, 5 errors in 2.00s ====================
##[error]Process completed with exit code 1.
Log :
Run python -m pip install --upgrade pip
python -m pip install --upgrade pip
pip install flake8 pytest
if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
shell: C:\Program Files\PowerShell\7\pwsh.EXE -command ". '{0}'"
env:
pythonLocation: C:\hostedtoolcache\windows\Python\3.5.4\x64
##[error]Process completed with exit code 1.
Log :
Run # stop the build if there are Python syntax errors or undefined names
# stop the build if there are Python syntax errors or undefined names
flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
# exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
shell: /bin/bash -e {0}
env:
pythonLocation: /opt/hostedtoolcache/Python/3.5.9/x64
./setup.py:20:10: E999 SyntaxError: invalid syntax
author="Alexandre Quenon",
^
./rtestbench/core.py:75:34: F821 undefined name 'error_msg'
self.logger.critical(error_msg)
^
./rtestbench/tools/tool.py:218:20: F632 use ==/!= to compare constant literals (str, bytes, int, float, tuple)
if self.transfer_format is 'text':
^
./rtestbench/tools/tool.py:223:22: F632 use ==/!= to compare constant literals (str, bytes, int, float, tuple)
elif self.transfer_format is 'bin64':
^
./rtestbench/tools/keysight/electrometer/b2985a.py:112:25: F821 undefined name 'condition'
condition, self.id, self._available_output_low_states))
^
./rtestbench/tools/keysight/electrometer/b2985a.py:116:108: F821 undefined name 'condition'
self.logger.info("The system {} output source's low state has been set to {}.".format(self.id, condition))
^
./rtestbench/post_processing/frequency.py:48:17: F821 undefined name 'y_data'
Example:
build (ubuntu-18.04, 3.8)
Run pytest --cov --cov-report=term --cov-report=html
pytest --cov --cov-report=term --cov-report=html
shell: /bin/bash -e {0}
env:
pythonLocation: /opt/hostedtoolcache/Python/3.8.5/x64
============================= test session starts ==============================
platform linux -- Python 3.8.5, pytest-6.1.1, py-1.9.0, pluggy-0.13.1
rootdir: /home/runner/work/rtestbench/rtestbench, configfile: pytest.ini
plugins: cov-2.10.1
collected 72 items
rtestbench/tests/test_chat.py ...... [ 8%]
rtestbench/tests/test_core.py ...................EEEEEEE..EEEEEEEEEEEE.F [ 66%]
EFFEEE.. [ 77%]
rtestbench/tests/test_electrometer.py .. [ 80%]
rtestbench/tests/test_factories.py .. [ 83%]
rtestbench/tests/test_keysight_electrometers.py ..s [ 87%]
rtestbench/tests/test_logger.py ... [ 91%]
rtestbench/tests/test_meta.py ...... [100%]
============================
Bye!
============================
==================================== ERRORS ====================================
________________ ERROR at setup of test_toolFactory_attributes _________________
@pytest.fixture
def toolFactory():
"""Returns a ToolFactory object with pyvisa-sim to enable a simulated resource."""
> manager = visa.ResourceManager(visa_library='@sim')
rtestbench/tests/test_core.py:41:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
/opt/hostedtoolcache/Python/3.8.5/x64/lib/python3.8/site-packages/pyvisa/highlevel.py:3015: in __new__
visa_library = open_visa_library(visa_library)
/opt/hostedtoolcache/Python/3.8.5/x64/lib/python3.8/site-packages/pyvisa/highlevel.py:2929: in open_visa_library
return cls(argument)
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
cls = <class 'pyvisa-sim.highlevel.SimVisaLibrary'>, library_path = ''
def __new__(
cls: Type[T], library_path: Union[str, LibraryPath] = ""
) -> "VisaLibraryBase":
"""Create a new VISA library from the specified path.
If a library was already created using the same path and class this
library object is returned instead.
Parameters
----------
library_path : str | LibraryPath
Path to the VISA library to use in the backend.
Raises
------
OSError
Raised if the VISA library object could not be created.
"""
if library_path == "":
errs = []
for path in cls.get_library_paths():
try:
return cls(path)
except OSError as e:
logger.debug("Could not open VISA library %s: %s", path, str(e))
errs.append(str(e))
except Exception as e:
errs.append(str(e))
else:
> raise OSError("Could not open VISA library:\n" + "\n".join(errs))
E OSError: Could not open VISA library:
/opt/hostedtoolcache/Python/3.8.5/x64/lib/python3.8/site-packages/pyvisa/highlevel.py:175: OSError
Not an issue. But, a rtestbench newbie question.....
I have installed rtestbench & it is working with my B2987A.
I looked through the repo & can not figure out how to set the source voltage output.
I was wanting to set the source voltage output to 600V turn on the source voltage & then take a temp reading.
It should be pretty simple, though I'm having a ton of trouble setting the source voltage & turning it on......
Thanks & Best Regards
BK
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