issues: 1433464557

What happened?

Before the error occured I have run this command on two computers：pip install xarray[complete] But when I run my code: import xarray as xa cur_ds = xa.open_dataset(……) IDEA on my first computer tells me: Traceback (most recent call last): File "C:\ProgramData\Anaconda3\envs\station-simulate\lib\unittest\loader.py", line 154, in loadTestsFromName module = __import__(module_name) File "C:\Users\PC303\pyprojects\station-simulate\past_test.py", line 22, in <module> import xarray as xa File "C:\ProgramData\Anaconda3\envs\station-simulate\lib\site-packages\xarray\__init__.py", line 1, in <module> from . import testing, tutorial, ufuncs File "C:\ProgramData\Anaconda3\envs\station-simulate\lib\site-packages\xarray\tutorial.py", line 13, in <module> from .backends.api import open_dataset as _open_dataset File "C:\ProgramData\Anaconda3\envs\station-simulate\lib\site-packages\xarray\backends\__init__.py", line 9, in <module> from .h5netcdf_ import H5NetCDFStore File "C:\ProgramData\Anaconda3\envs\station-simulate\lib\site-packages\xarray\backends\h5netcdf_.py", line 25, in <module> from .netCDF4_ import ( File "C:\ProgramData\Anaconda3\envs\station-simulate\lib\site-packages\xarray\backends\netCDF4_.py", line 33, in <module> import netCDF4 File "C:\ProgramData\Anaconda3\envs\station-simulate\lib\site-packages\netCDF4\__init__.py", line 3, in <module> from ._netCDF4 import * ImportError: DLL load failed while importing _netCDF4: 找不到指定的程序。 And on the 2nd computer, crash is this: ``` collecting ... Windows fatal exception: code 0xc0000139

Current thread 0x00002368 (most recent call first): File "<frozen importlib._bootstrap>", line 241 in call_with_frames_removed File "<frozen importlib._bootstrap_external>", line 1176 in create_module File "<frozen importlib._bootstrap>", line 571 in module_from_spec File "<frozen importlib._bootstrap>", line 674 in _load_unlocked File "<frozen importlib._bootstrap>", line 1006 in _find_and_load_unlocked File "<frozen importlib._bootstrap>", line 1027 in _find_and_load File "C:\ProgramData\Anaconda3\envs\my1stconda\lib\site-packages\netCDF4__init__.py", line 3 in <module> File "<frozen importlib._bootstrap>", line 241 in _call_with_frames_removed File "<frozen importlib._bootstrap_external>", line 883 in exec_module File "<frozen importlib._bootstrap>", line 688 in _load_unlocked File "<frozen importlib._bootstrap>", line 1006 in _find_and_load_unlocked File "<frozen importlib._bootstrap>", line 1027 in _find_and_load File "C:\ProgramData\Anaconda3\envs\my1stconda\lib\site-packages\xarray\backends\netCDF4.py", line 35 in <module> File "<frozen importlib._bootstrap>", line 241 in call_with_frames_removed File "<frozen importlib._bootstrap_external>", line 883 in exec_module File "<frozen importlib._bootstrap>", line 688 in _load_unlocked File "<frozen importlib._bootstrap>", line 1006 in _find_and_load_unlocked File "<frozen importlib._bootstrap>", line 1027 in _find_and_load File "C:\ProgramData\Anaconda3\envs\my1stconda\lib\site-packages\xarray\backends\h5netcdf.py", line 27 in <module> File "<frozen importlib._bootstrap>", line 241 in _call_with_frames_removed File "<frozen importlib._bootstrap_external>", line 883 in exec_module File "<frozen importlib._bootstrap>", line 688 in _load_unlocked File "<frozen importlib._bootstrap>", line 1006 in _find_and_load_unlocked File "<frozen importlib._bootstrap>", line 1027 in _find_and_load File "C:\ProgramData\Anaconda3\envs\my1stconda\lib\site-packages\xarray\backends__init__.py", line 9 in <module> File "<frozen importlib._bootstrap>", line 241 in _call_with_frames_removed File "<frozen importlib._bootstrap_external>", line 883 in exec_module File "<frozen importlib._bootstrap>", line 688 in _load_unlocked File "<frozen importlib._bootstrap>", line 1006 in _find_and_load_unlocked File "<frozen importlib._bootstrap>", line 1027 in _find_and_load File "<frozen importlib._bootstrap>", line 241 in _call_with_frames_removed File "<frozen importlib._bootstrap>", line 992 in _find_and_load_unlocked File "<frozen importlib._bootstrap>", line 1027 in _find_and_load File "C:\ProgramData\Anaconda3\envs\my1stconda\lib\site-packages\xarray\tutorial.py", line 16 in <module> File "<frozen importlib._bootstrap>", line 241 in _call_with_frames_removed File "<frozen importlib._bootstrap_external>", line 883 in exec_module File "<frozen importlib._bootstrap>", line 688 in _load_unlocked File "<frozen importlib._bootstrap>", line 1006 in _find_and_load_unlocked File "<frozen importlib._bootstrap>", line 1027 in _find_and_load File "<frozen importlib._bootstrap>", line 241 in _call_with_frames_removed File "<frozen importlib._bootstrap>", line 1078 in _handle_fromlist File "C:\ProgramData\Anaconda3\envs\my1stconda\lib\site-packages\xarray__init__.py", line 1 in <module> File "<frozen importlib._bootstrap>", line 241 in _call_with_frames_removed File "<frozen importlib._bootstrap_external>", line 883 in exec_module File "<frozen importlib._bootstrap>", line 688 in _load_unlocked File "<frozen importlib._bootstrap>", line 1006 in _find_and_load_unlocked File "<frozen importlib._bootstrap>", line 1027 in _find_and_load File "C:\Users\k6789\IdeaProjects\station-simulate\past_predict.py", line 21 in <module> File "C:\ProgramData\Anaconda3\envs\my1stconda\lib\site-packages_pytest\assertion\rewrite.py", line 168 in exec_module File "<frozen importlib._bootstrap>", line 688 in _load_unlocked File "<frozen importlib._bootstrap>", line 1006 in _find_and_load_unlocked File "<frozen importlib._bootstrap>", line 1027 in _find_and_load File "<frozen importlib._bootstrap>", line 1050 in _gcd_import File "C:\ProgramData\Anaconda3\envs\my1stconda\lib\importlib__init__.py", line 126 in import_module File "C:\ProgramData\Anaconda3\envs\my1stconda\lib\site-packages_pytest\pathlib.py", line 533 in import_path File "C:\ProgramData\Anaconda3\envs\my1stconda\lib\site-packages_pytest\python.py", line 608 in _importtestmodule File "C:\ProgramData\Anaconda3\envs\my1stconda\lib\site-packages_pytest\python.py", line 519 in _getobj File "C:\ProgramData\Anaconda3\envs\my1stconda\lib\site-packages_pytest\python.py", line 301 in obj File "C:\ProgramData\Anaconda3\envs\my1stconda\lib\site-packages_pytest\python.py", line 536 in _inject_setup_module_fixture File "C:\ProgramData\Anaconda3\envs\my1stconda\lib\site-packages_pytest\python.py", line 522 in collect File "C:\ProgramData\Anaconda3\envs\my1stconda\lib\site-packages_pytest\runner.py", line 369 in <lambda> File "C:\ProgramData\Anaconda3\envs\my1stconda\lib\site-packages_pytest\runner.py", line 338 in from_call File "C:\ProgramData\Anaconda3\envs\my1stconda\lib\site-packages_pytest\runner.py", line 369 in pytest_make_collect_report File "C:\ProgramData\Anaconda3\envs\my1stconda\lib\site-packages\pluggy_callers.py", line 39 in _multicall File "C:\ProgramData\Anaconda3\envs\my1stconda\lib\site-packages\pluggy_manager.py", line 80 in _hookexec File "C:\ProgramData\Anaconda3\envs\my1stconda\lib\site-packages\pluggy_hooks.py", line 265 in call File "C:\ProgramData\Anaconda3\envs\my1stconda\lib\site-packages_pytest\runner.py", line 537 in collect_one_node File "C:\ProgramData\Anaconda3\envs\my1stconda\lib\site-packages_pytest\main.py", line 768 in collect File "C:\ProgramData\Anaconda3\envs\my1stconda\lib\site-packages_pytest\runner.py", line 369 in <lambda> File "C:\ProgramData\Anaconda3\envs\my1stconda\lib\site-packages_pytest\runner.py", line 338 in from_call File "C:\ProgramData\Anaconda3\envs\my1stconda\lib\site-packages_pytest\runner.py", line 369 in pytest_make_collect_report File "C:\ProgramData\Anaconda3\envs\my1stconda\lib\site-packages\pluggy_callers.py", line 39 in _multicall File "C:\ProgramData\Anaconda3\envs\my1stconda\lib\site-packages\pluggy_manager.py", line 80 in _hookexec File "C:\ProgramData\Anaconda3\envs\my1stconda\lib\site-packages\pluggy_hooks.py", line 265 in call File "C:\ProgramData\Anaconda3\envs\my1stconda\lib\site-packages_pytest\runner.py", line 537 in collect_one_node File "C:\ProgramData\Anaconda3\envs\my1stconda\lib\site-packages_pytest\main.py", line 643 in perform_collect File "C:\ProgramData\Anaconda3\envs\my1stconda\lib\site-packages_pytest\main.py", line 332 in pytest_collection File "C:\ProgramData\Anaconda3\envs\my1stconda\lib\site-packages\pluggy_callers.py", line 39 in _multicall File "C:\ProgramData\Anaconda3\envs\my1stconda\lib\site-packages\pluggy_manager.py", line 80 in _hookexec File "C:\ProgramData\Anaconda3\envs\my1stconda\lib\site-packages\pluggy_hooks.py", line 265 in call File "C:\ProgramData\Anaconda3\envs\my1stconda\lib\site-packages_pytest\main.py", line 321 in _main File "C:\ProgramData\Anaconda3\envs\my1stconda\lib\site-packages_pytest\main.py", line 268 in wrap_session File "C:\ProgramData\Anaconda3\envs\my1stconda\lib\site-packages_pytest\main.py", line 315 in pytest_cmdline_main File "C:\ProgramData\Anaconda3\envs\my1stconda\lib\site-packages\pluggy_callers.py", line 39 in _multicall File "C:\ProgramData\Anaconda3\envs\my1stconda\lib\site-packages\pluggy_manager.py", line 80 in _hookexec File "C:\ProgramData\Anaconda3\envs\my1stconda\lib\site-packages\pluggy_hooks.py", line 265 in call File "C:\ProgramData\Anaconda3\envs\my1stconda\lib\site-packages_pytest\config__init__.py", line 164 in main File "C:\Users\k6789\AppData\Roaming\JetBrains\IntelliJIdea2022.2\plugins\python\helpers\pycharm_jb_pytest_runner.py", line 51 in <module> …… C:\ProgramData\Anaconda3\envs\my1stconda\lib\site-packages\xarray\backends\api.py:515: in open_dataset engine = plugins.guess_engine(filename_or_obj)

---

store_spec = None

def guess_engine(store_spec):
    engines = list_engines()

    for engine, backend in engines.items():
        try:
            if backend.guess_can_open(store_spec):
                return engine
        except Exception:
            warnings.warn(f"{engine!r} fails while guessing", RuntimeWarning)

……

  raise ValueError(error_msg)

E ValueError: did not find a match in any of xarray's currently installed IO backends ['h5netcdf', 'scipy', 'zarr']. Consider explicitly selecting one of the installed engines via the engine parameter, or installing additional IO dependencies, see: E https://docs.xarray.dev/en/stable/getting-started-guide/installing.html E https://docs.xarray.dev/en/stable/user-guide/io.html

C:\ProgramData\Anaconda3\envs\my1stconda\lib\site-packages\xarray\backends\plugins.py:155: ValueError

I have re-installed those io-engines contains `scipy` and so on by conda，but it still crashed and crash report on the 2nd computer became this： ValueError: did not find a match in any of xarray's currently installed IO backends ['scipy', 'zarr']. Consider explicitly selecting one of the installed engines via the engine parameter, or installing additional IO dependencies…… And I appointed `netcdf` engine to read my `.nc` files: `cur_ds = xa.open_dataset(…… , engine='netcdf4')` crash report is like this: engine = 'netcdf4' def get_backend(engine: str | type[BackendEntrypoint]) -> BackendEntrypoint: """Select open_dataset method based on current engine.""" if isinstance(engine, str): engines = list_engines() if engine not in engines:

          raise ValueError(
                f"unrecognized engine {engine} must be one of: {list(engines)}"
            )

E ValueError: unrecognized engine netcdf4 must be one of: ['scipy', 'store', 'zarr'] ``` So how to solve this? And now I'm sure the crash has not connection with cython.

What did you expect to happen?

No response

Minimal Complete Verifiable Example

No response

MVCE confirmation

• [ ] Minimal example — the example is as focused as reasonably possible to demonstrate the underlying issue in xarray.
• [ ] Complete example — the example is self-contained, including all data and the text of any traceback.
• [ ] Verifiable example — the example copy & pastes into an IPython prompt or Binder notebook, returning the result.
• [X] New issue — a search of GitHub Issues suggests this is not a duplicate.

Relevant log output

No response

Anything else we need to know?

No response

Environment

xarray 2022.9.0 conda channel = pypi