I have installed Python 3.6 with Anaconda 3.
The installation was successful however, when I launch a notebook, there is
kernel error immediatly with the following error message :
Traceback (most recent call last):
File "C:\Users\Lionel\Anaconda3\lib\site-
packages\notebook\base\handlers.py", line 516, in wrapper
result = yield gen.maybe_future(method(self, *args, **kwargs))
File "C:\Users\Lionel\Anaconda3\lib\site-packages\tornado\gen.py", line
1055, in run
value = future.result()
File "C:\Users\Lionel\Anaconda3\lib\site-packages\tornado\concurrent.py",
line 238, in result
raise_exc_info(self._exc_info)
File "<string>", line 4, in raise_exc_info
File "C:\Users\Lionel\Anaconda3\lib\site-packages\tornado\gen.py", line
1063, in run
yielded = self.gen.throw(*exc_info)
File "C:\Users\Lionel\Anaconda3\lib\site-
packages\notebook\services\sessions\handlers.py", line 75, in post
type=mtype))
File "C:\Users\Lionel\Anaconda3\lib\site-packages\tornado\gen.py", line
1055, in run
value = future.result()
File "C:\Users\Lionel\Anaconda3\lib\site-packages\tornado\concurrent.py",
line 238, in result
raise_exc_info(self._exc_info)
File "<string>", line 4, in raise_exc_info
File "C:\Users\Lionel\Anaconda3\lib\site-packages\tornado\gen.py", line
1063, in run
yielded = self.gen.throw(*exc_info)
File "C:\Users\Lionel\Anaconda3\lib\site-
packages\notebook\services\sessions\sessionmanager.py", line 79, in
create_session
kernel_id = yield self.start_kernel_for_session(session_id, path, name,
type, kernel_name)
File "C:\Users\Lionel\Anaconda3\lib\site-packages\tornado\gen.py", line
1055,
in run
value = future.result()
File "C:\Users\Lionel\Anaconda3\lib\site-packages\tornado\concurrent.py",
line 238, in result
raise_exc_info(self._exc_info)
File "<string>", line 4, in raise_exc_info
File "C:\Users\Lionel\Anaconda3\lib\site-packages\tornado\gen.py", line
1063, in run
yielded = self.gen.throw(*exc_info)
File "C:\Users\Lionel\Anaconda3\lib\site-
packages\notebook\services\sessions\sessionmanager.py", line 92, in
start_kernel_for_session
self.kernel_manager.start_kernel(path=kernel_path, kernel_name=kernel_name)
File "C:\Users\Lionel\Anaconda3\lib\site-packages\tornado\gen.py", line
1055, in run
value = future.result()
File "C:\Users\Lionel\Anaconda3\lib\site-packages\tornado\concurrent.py",
line 238, in result
raise_exc_info(self._exc_info)
File "<string>", line 4, in raise_exc_info
File "C:\Users\Lionel\Anaconda3\lib\site-packages\tornado\gen.py", line 307,
in wrapper
yielded = next(result)
File "C:\Users\Lionel\Anaconda3\lib\site-
packages\notebook\services\kernels\kernelmanager.py", line 94, in
start_kernel
super(MappingKernelManager, self).start_kernel(**kwargs)
File "C:\Users\Lionel\Anaconda3\lib\site-
packages\jupyter_client\multikernelmanager.py", line 110, in start_kernel
km.start_kernel(**kwargs)
File "C:\Users\Lionel\Anaconda3\lib\site-
packages\jupyter_client\manager.py", line 257, in start_kernel
**kw)
File "C:\Users\Lionel\Anaconda3\lib\site-
packages\jupyter_client\manager.py", line 203, in _launch_kernel
return launch_kernel(kernel_cmd, **kw)
File "C:\Users\Lionel\Anaconda3\lib\site-
packages\jupyter_client\launcher.py", line 128, in launch_kernel
proc = Popen(cmd, **kwargs)
File "C:\Users\Lionel\Anaconda3\lib\subprocess.py", line 709, in __init__
restore_signals, start_new_session)
File "C:\Users\Lionel\Anaconda3\lib\subprocess.py", line 997, in
_execute_child
startupinfo)
FileNotFoundError: [WinError 2] Le fichier spécifié est introuvable
Note that before installing Anaconda 3, I uninstalled Anaconda 2 (with Python 2.7).
How can I fix this?
Finally I found a solution in the web :
I had to execute the following command :
python -m ipykernel install --user
Regards,
Lionel
Related
Error Starting Kernel
Traceback (most recent call last):
File "/root/anaconda3/envs/TensorPy36/lib/python3.7/site-packages/tornado/web.py", line 1713, in _execute
result = await result
File "/root/anaconda3/envs/TensorPy36/lib/python3.7/site-packages/tornado/gen.py", line 776, in run
yielded = self.gen.throw(*exc_info) # type: ignore
File "/root/anaconda3/envs/TensorPy36/lib/python3.7/site-packages/notebook/services/sessions/handlers.py", line 72, in post
type=mtype))
File "/root/anaconda3/envs/TensorPy36/lib/python3.7/site-packages/tornado/gen.py", line 769, in run
value = future.result()
File "/root/anaconda3/envs/TensorPy36/lib/python3.7/site-packages/tornado/gen.py", line 776, in run
yielded = self.gen.throw(*exc_info) # type: ignore
File "/root/anaconda3/envs/TensorPy36/lib/python3.7/site-packages/notebook/services/sessions/sessionmanager.py", line 88, in create_session
kernel_id = yield self.start_kernel_for_session(session_id, path, name, type, kernel_name)
File "/root/anaconda3/envs/TensorPy36/lib/python3.7/site-packages/tornado/gen.py", line 769, in run
value = future.result()
File "/root/anaconda3/envs/TensorPy36/lib/python3.7/site-packages/tornado/gen.py", line 776, in run
yielded = self.gen.throw(*exc_info) # type: ignore
File "/root/anaconda3/envs/TensorPy36/lib/python3.7/site-packages/notebook/services/sessions/sessionmanager.py", line 101, in start_kernel_for_session
self.kernel_manager.start_kernel(path=kernel_path, kernel_name=kernel_name)
File "/root/anaconda3/envs/TensorPy36/lib/python3.7/site-packages/tornado/gen.py", line 769, in run
value = future.result()
File "/root/anaconda3/envs/TensorPy36/lib/python3.7/site-packages/tornado/gen.py", line 234, in wrapper
yielded = ctx_run(next, result)
File "/root/anaconda3/envs/TensorPy36/lib/python3.7/site-packages/notebook/services/kernels/kernelmanager.py", line 168, in start_kernel
super(MappingKernelManager, self).start_kernel(**kwargs)
File "/root/anaconda3/envs/TensorPy36/lib/python3.7/site-packages/jupyter_client/utils.py", line 30, in wrapped
raise e
File "/root/anaconda3/envs/TensorPy36/lib/python3.7/site-packages/jupyter_client/utils.py", line 27, in wrapped
return loop.run_until_complete(future)
File "/root/anaconda3/envs/TensorPy36/lib/python3.7/site-packages/nest_asyncio.py", line 90, in run_until_complete
return f.result()
File "/root/anaconda3/envs/TensorPy36/lib/python3.7/asyncio/futures.py", line 178, in result
raise self._exception
File "/root/anaconda3/envs/TensorPy36/lib/python3.7/asyncio/tasks.py", line 223, in __step
result = coro.send(None)
File "/root/anaconda3/envs/TensorPy36/lib/python3.7/site-packages/jupyter_client/multikernelmanager.py", line 214, in _async_start_kernel
starter = ensure_async(km.start_kernel(**kwargs))
File "/root/anaconda3/envs/TensorPy36/lib/python3.7/site-packages/jupyter_client/utils.py", line 30, in wrapped
raise e
File "/root/anaconda3/envs/TensorPy36/lib/python3.7/site-packages/jupyter_client/utils.py", line 27, in wrapped
return loop.run_until_complete(future)
File "/root/anaconda3/envs/TensorPy36/lib/python3.7/site-packages/nest_asyncio.py", line 90, in run_until_complete
return f.result()
File "/root/anaconda3/envs/TensorPy36/lib/python3.7/asyncio/futures.py", line 178, in result
raise self._exception
File "/root/anaconda3/envs/TensorPy36/lib/python3.7/asyncio/tasks.py", line 223, in __step
result = coro.send(None)
File "/root/anaconda3/envs/TensorPy36/lib/python3.7/site-packages/jupyter_client/manager.py", line 90, in wrapper
raise e
File "/root/anaconda3/envs/TensorPy36/lib/python3.7/site-packages/jupyter_client/manager.py", line 82, in wrapper
out = await method(self, *args, **kwargs)
File "/root/anaconda3/envs/TensorPy36/lib/python3.7/site-packages/jupyter_client/manager.py", line 394, in _async_start_kernel
await ensure_async(self._launch_kernel(kernel_cmd, **kw))
File "/root/anaconda3/envs/TensorPy36/lib/python3.7/site-packages/jupyter_client/utils.py", line 30, in wrapped
raise e
File "/root/anaconda3/envs/TensorPy36/lib/python3.7/site-packages/jupyter_client/utils.py", line 27, in wrapped
return loop.run_until_complete(future)
File "/root/anaconda3/envs/TensorPy36/lib/python3.7/site-packages/nest_asyncio.py", line 90, in run_until_complete
return f.result()
File "/root/anaconda3/envs/TensorPy36/lib/python3.7/asyncio/futures.py", line 178, in result
raise self._exception
File "/root/anaconda3/envs/TensorPy36/lib/python3.7/asyncio/tasks.py", line 223, in __step
result = coro.send(None)
File "/root/anaconda3/envs/TensorPy36/lib/python3.7/site-packages/jupyter_client/manager.py", line 311, in _async_launch_kernel
connection_info = await self.provisioner.launch_kernel(kernel_cmd, **kw)
File "/root/anaconda3/envs/TensorPy36/lib/python3.7/site-packages/jupyter_client/provisioning/local_provisioner.py", line 204, in launch_kernel
self.process = launch_kernel(cmd, **scrubbed_kwargs)
File "/root/anaconda3/envs/TensorPy36/lib/python3.7/site-packages/jupyter_client/launcher.py", line 170, in launch_kernel
raise ex
File "/root/anaconda3/envs/TensorPy36/lib/python3.7/site-packages/jupyter_client/launcher.py", line 158, in launch_kernel
proc = Popen(cmd, **kwargs)
File "/root/anaconda3/envs/TensorPy36/lib/python3.7/subprocess.py", line 775, in init
restore_signals, start_new_session)
File "/root/anaconda3/envs/TensorPy36/lib/python3.7/subprocess.py", line 1453, in _execute_child
restore_signals, start_new_session, preexec_fn)
BlockingIOError: [Errno 11] Resource temporarily unavailable
Permanent solution for this error
Here is the error log that I get when I click on Kernel Error:
Traceback (most recent call last):
File "/Users/Brahmbha/opt/anaconda3/lib/python3.7/site-packages/tornado/web.py", line 1699, in
_execute result = await result
File "/Users/Brahmbha/opt/anaconda3/lib/python3.7/site-packages/tornado/gen.py", line 742, in run
yielded = self.gen.throw(*exc_info) # type: ignore
File "/Users/Brahmbha/opt/anaconda3/lib/python3.7/site-
packages/notebook/services/sessions/handlers.py", line 72, in post type=mtype))
File "/Users/Brahmbha/opt/anaconda3/lib/python3.7/site-packages/tornado/gen.py", line 735, in run
value = future.result()
File "/Users/Brahmbha/opt/anaconda3/lib/python3.7/site-packages/tornado/gen.py", line 742, in run
yielded = self.gen.throw(*exc_info) # type: ignore
File "/Users/Brahmbha/opt/anaconda3/lib/python3.7/site
packages/notebook/services/sessions/sessionmanager.py", line 88, in create_session
kernel_id = yield self.start_kernel_for_session(session_id, path, name, type, kernel_name)
File "/Users/Brahmbha/opt/anaconda3/lib/python3.7/site-packages/tornado/gen.py", line 735, in run
value = future.result()
File "/Users/Brahmbha/opt/anaconda3/lib/python3.7/site-packages/tornado/gen.py", line 742, in run
yielded = self.gen.throw(*exc_info) # type: ignore
File "/Users/Brahmbha/opt/anaconda3/lib/python3.7/site-
packages/notebook/services/sessions/sessionmanager.py", line 101, in start_kernel_for_session
self.kernel_manager.start_kernel(path=kernel_path, kernel_name=kernel_name)
File "/Users/Brahmbha/opt/anaconda3/lib/python3.7/site-packages/tornado/gen.py", line 735, in run
value = future.result()
File "/Users/Brahmbha/opt/anaconda3/lib/python3.7/site-packages/tornado/gen.py", line 209, in wrapper
yielded = next(result)
File "/Users/Brahmbha/opt/anaconda3/lib/python3.7/site-
packages/notebook/services/kernels/kernelmanager.py", line 168, in start_kernel
super(MappingKernelManager, self).start_kernel(**kwargs)
File "/Users/Brahmbha/opt/anaconda3/lib/python3.7/site-
packages/jupyter_client/multikernelmanager.py", line 110, in start_kernel
km.start_kernel(**kwargs)
File "/Users/Brahmbha/opt/anaconda3/lib/python3.7/site-packages/jupyter_client/manager.py", line
259, in start_kernel**kw)
File "/Users/Brahmbha/opt/anaconda3/lib/python3.7/site-packages/jupyter_client/manager.py", line 204,
in _launch_kernel return launch_kernel(kernel_cmd, **kw)
File "/Users/Brahmbha/opt/anaconda3/lib/python3.7/site-packages/jupyter_client/launcher.py", line
138, in launch_kernel proc = Popen(cmd, **kwargs)
File "/Users/Brahmbha/opt/anaconda3/lib/python3.7/subprocess.py", line 800, in __init__
restore_signals, start_new_session)
File "/Users/Brahmbha/opt/anaconda3/lib/python3.7/subprocess.py", line 1551, in _execute_child
raise child_exception_type(errno_num, err_msg, err_filename)
FileNotFoundError: [Errno 2] No such file or directory:
'/Users/Brahmbha/anaconda2/envs/ipykernel_py3/bin/python':
'/Users/Brahmbha/anaconda2/envs/ipykernel_py3/bin/python'
It looks like your jupyter notebook could be trying to use a python enviroment that has been moved or deleted.
Try this in cmd or anaconda:
python -m ipykernel install --user
See this thread for more:
https://github.com/jupyter/notebook/issues/4079
I am experiencing the following kernel error at jupyter notebook. This problem has started after having installed new version of python(3.8.2) and visual studio python package. I have tried to uninstall and reinstall anaconda but it isn't still working.
Traceback (most recent call last):
File "C:\Users\Tolga\AppData\Roaming\Python\Python37\site-packages\tornado\web.py", line 1703, in _execute
result = await result
File "C:\Users\Tolga\AppData\Roaming\Python\Python37\site-packages\tornado\gen.py", line 742, in run
yielded = self.gen.throw(*exc_info) # type: ignore
File "C:\Users\Tolga\AppData\Roaming\Python\Python37\site-packages\notebook\services\sessions\handlers.py", line 72, in post
type=mtype))
File "C:\Users\Tolga\AppData\Roaming\Python\Python37\site-packages\tornado\gen.py", line 735, in run
value = future.result()
File "C:\Users\Tolga\AppData\Roaming\Python\Python37\site-packages\tornado\gen.py", line 742, in run
yielded = self.gen.throw(*exc_info) # type: ignore
File "C:\Users\Tolga\AppData\Roaming\Python\Python37\site-packages\notebook\services\sessions\sessionmanager.py", line 88, in create_session
kernel_id = yield self.start_kernel_for_session(session_id, path, name, type, kernel_name)
File "C:\Users\Tolga\AppData\Roaming\Python\Python37\site-packages\tornado\gen.py", line 735, in run
value = future.result()
File "C:\Users\Tolga\AppData\Roaming\Python\Python37\site-packages\tornado\gen.py", line 742, in run
yielded = self.gen.throw(*exc_info) # type: ignore
File "C:\Users\Tolga\AppData\Roaming\Python\Python37\site-packages\notebook\services\sessions\sessionmanager.py", line 101, in start_kernel_for_session
self.kernel_manager.start_kernel(path=kernel_path, kernel_name=kernel_name)
File "C:\Users\Tolga\AppData\Roaming\Python\Python37\site-packages\tornado\gen.py", line 735, in run
value = future.result()
File "C:\Users\Tolga\AppData\Roaming\Python\Python37\site-packages\tornado\gen.py", line 209, in wrapper
yielded = next(result)
File "C:\Users\Tolga\AppData\Roaming\Python\Python37\site-packages\notebook\services\kernels\kernelmanager.py", line 168, in start_kernel
super(MappingKernelManager, self).start_kernel(**kwargs)
File "C:\Users\Tolga\AppData\Roaming\Python\Python37\site-packages\jupyter_client\multikernelmanager.py", line 158, in start_kernel
km.start_kernel(**kwargs)
File "C:\Users\Tolga\AppData\Roaming\Python\Python37\site-packages\jupyter_client\manager.py", line 301, in start_kernel
kernel_cmd, kw = self.pre_start_kernel(**kw)
File "C:\Users\Tolga\AppData\Roaming\Python\Python37\site-packages\jupyter_client\manager.py", line 248, in pre_start_kernel
self.write_connection_file()
File "C:\Users\Tolga\AppData\Roaming\Python\Python37\site-packages\jupyter_client\connect.py", line 474, in write_connection_file
kernel_name=self.kernel_name
File "C:\Users\Tolga\AppData\Roaming\Python\Python37\site-packages\jupyter_client\connect.py", line 138, in write_connection_file
with secure_write(fname) as f:
File "C:\ProgramData\Anaconda3\lib\contextlib.py", line 112, in __enter__
return next(self.gen)
File "C:\Users\Tolga\AppData\Roaming\Python\Python37\site-packages\jupyter_core\paths.py", line 435, in secure_write
win32_restrict_file_to_user(fname)
File "C:\Users\Tolga\AppData\Roaming\Python\Python37\site-packages\jupyter_core\paths.py", line 361, in win32_restrict_file_to_user
import win32api
ImportError: DLL load failed: %1 is not a valid Win32 application.
I have solved the problem with executing the following code: pip install -- pywin32==227
I have set up Airflow on an AWS EC2 server with Ubuntu 18.04, Python 3.6.9. The DB backend is a 5.7.26 MySQL, I am using a LocalExecutor. The setup is nothing more than:
apt-get install python3 python3-pip python3-venv libmysqlclient-dev
I install Airflow with pip3 install apache-airflow[mysql]==1.10.9, init DB connection, start the webserver and it works both normally and with -D. The scheduler, however, works only when run in the foreground. Trying to run it as a daemon fails with the following trace:
Traceback (most recent call last):
File "/usr/local/bin/airflow", line 37, in <module> args.func(args)
File "/usr/local/lib/python3.6/dist-packages/airflow/utils/cli.py", line 75, in wrapper return f(*args, **kwargs)
File "/usr/local/lib/python3.6/dist-packages/airflow/bin/cli.py", line 1032, in schedulerjob.run()
File "/usr/local/lib/python3.6/dist-packages/airflow/jobs/base_job.py", line 215, in run session.commit()
File "/usr/local/lib/python3.6/dist-packages/sqlalchemy/orm/session.py", line 1036, in commit self.transaction.commit()
File "/usr/local/lib/python3.6/dist-packages/sqlalchemy/orm/session.py", line 503, in commitself._prepare_impl()
File "/usr/local/lib/python3.6/dist-packages/sqlalchemy/orm/session.py", line 482, in _prepare_impl self.session.flush()
File "/usr/local/lib/python3.6/dist-packages/sqlalchemy/orm/session.py", line 2496, in flushself._flush(objects)
File "/usr/local/lib/python3.6/dist-packages/sqlalchemy/orm/session.py", line 2637, in _flush transaction.rollback(_capture_exception=True)
File "/usr/local/lib/python3.6/dist-packages/sqlalchemy/util/langhelpers.py", line 69, in __exit__exc_value, with_traceback=exc_tb,
File "/usr/local/lib/python3.6/dist-packages/sqlalchemy/util/compat.py", line 178, in raise_raise exception
File "/usr/local/lib/python3.6/dist-packages/sqlalchemy/orm/session.py", line 2597, in _flush flush_context.execute()
File "/usr/local/lib/python3.6/dist-packages/sqlalchemy/orm/unitofwork.py", line 422, in execute rec.execute(self)
File "/usr/local/lib/python3.6/dist-packages/sqlalchemy/orm/unitofwork.py", line 589, in execute uow,
File "/usr/local/lib/python3.6/dist-packages/sqlalchemy/orm/persistence.py", line 213, in save_obj) in _organize_states_for_save(base_mapper, states, uowtransaction):
File "/usr/local/lib/python3.6/dist-packages/sqlalchemy/orm/persistence.py", line 374, in _organize_states_for_save base_mapper, uowtransaction, states
File "/usr/local/lib/python3.6/dist-packages/sqlalchemy/orm/persistence.py", line 1602, in _connections_for_states connection = uowtransaction.transaction.connection(base_mapper)
File "/usr/local/lib/python3.6/dist-packages/sqlalchemy/orm/session.py", line 313, in connection return self._connection_for_bind(bind, execution_options)
File "/usr/local/lib/python3.6/dist-packages/sqlalchemy/orm/session.py", line 420, in _connection_for_bind conn = self._parent._connection_for_bind(bind, execution_options)
File "/usr/local/lib/python3.6/dist-packages/sqlalchemy/orm/session.py", line 432, in _connection_for_bind conn = bind._contextual_connect()
File "/usr/local/lib/python3.6/dist-packages/sqlalchemy/engine/base.py", line 2251, in _contextual_connect self._wrap_pool_connect(self.pool.connect, None),
File "/usr/local/lib/python3.6/dist-packages/sqlalchemy/engine/base.py", line 2285, in _wrap_pool_connect return fn()
File "/usr/local/lib/python3.6/dist-packages/sqlalchemy/pool/base.py", line 363, in connect return _ConnectionFairy._checkout(self)
File "/usr/local/lib/python3.6/dist-packages/sqlalchemy/pool/base.py", line 804, in _checkout result = pool._dialect.do_ping(fairy.connection)
File "/usr/local/lib/python3.6/dist-packages/sqlalchemy/dialects/mysql/mysqldb.py", line 138, in do_pingdbapi_connection.ping(False)
File "/usr/local/lib/python3.6/dist-packages/pymysql/connections.py", line 546, in ping self._execute_command(COMMAND.COM_PING, "")
File "/usr/local/lib/python3.6/dist-packages/pymysql/connections.py", line 771, in _execute_command self._write_bytes(packet)
File "/usr/local/lib/python3.6/dist-packages/pymysql/connections.py", line 711, in _write_bytesself._sock.settimeout(self._write_timeout)
OSError: [Errno 9] Bad file descriptor
Exception ignored in: <function _ConnectionRecord.checkout.<locals>.<lambda> at 0x7f2eb025e268>
Traceback (most recent call last):
File "/usr/local/lib/python3.6/dist-packages/sqlalchemy/pool/base.py", line 503, in <lambda>
File "/usr/local/lib/python3.6/dist-packages/sqlalchemy/pool/base.py", line 702, in _finalize_fairy
File "/usr/lib/python3.6/logging/__init__.py", line 1337, in error
File "/usr/lib/python3.6/logging/__init__.py", line 1444, in _log
File "/usr/lib/python3.6/logging/__init__.py", line 1454, in handle
File "/usr/lib/python3.6/logging/__init__.py", line 1516, in callHandlers
File "/usr/lib/python3.6/logging/__init__.py", line 865, in handle
File "/usr/lib/python3.6/logging/__init__.py", line 1071, in emit
File "/usr/lib/python3.6/logging/__init__.py", line 1061, in _open
NameError: name 'open' is not defined
I am trying to set up a server for semi-production purposes, so this is actually a blocker for me. I would be grateful for any advice.
EDIT
I tried using mysql-connector-python==8.0.18 and the scheduler did run as a daemon, but an attempt to open a dag failed with the following trace:
UnicodeDecodeError: 'utf-8' codec can't decode byte 0x80 in position 0: invalid start byte
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "/usr/local/lib/python3.6/dist-packages/flask/app.py", line 2447, in wsgi_app
response = self.full_dispatch_request()
File "/usr/local/lib/python3.6/dist-packages/flask/app.py", line 1952, in full_dispatch_request
rv = self.handle_user_exception(e)
File "/usr/local/lib/python3.6/dist-packages/flask/app.py", line 1821, in handle_user_exception
reraise(exc_type, exc_value, tb)
File "/usr/local/lib/python3.6/dist-packages/flask/_compat.py", line 39, in reraise
raise value
File "/usr/local/lib/python3.6/dist-packages/flask/app.py", line 1950, in full_dispatch_request
rv = self.dispatch_request()
File "/usr/local/lib/python3.6/dist-packages/flask/app.py", line 1936, in dispatch_request
return self.view_functions[rule.endpoint](**req.view_args)
File "/usr/local/lib/python3.6/dist-packages/flask_admin/base.py", line 69, in inner
return self._run_view(f, *args, **kwargs)
File "/usr/local/lib/python3.6/dist-packages/flask_admin/base.py", line 368, in _run_view
return fn(self, *args, **kwargs)
File "/usr/local/lib/python3.6/dist-packages/flask_login/utils.py", line 258, in decorated_view
return func(*args, **kwargs)
File "/usr/local/lib/python3.6/dist-packages/airflow/www/utils.py", line 384, in view_func
return f(*args, **kwargs)
File "/usr/local/lib/python3.6/dist-packages/airflow/www/utils.py", line 290, in wrapper
return f(*args, **kwargs)
File "/usr/local/lib/python3.6/dist-packages/airflow/utils/db.py", line 74, in wrapper
return func(*args, **kwargs)
File "/usr/local/lib/python3.6/dist-packages/airflow/www/views.py", line 1559, in tree
start_date=min_date, end_date=base_date, session=session)
File "/usr/local/lib/python3.6/dist-packages/airflow/utils/db.py", line 70, in wrapper
return func(*args, **kwargs)
File "/usr/local/lib/python3.6/dist-packages/airflow/models/dag.py", line 837, in get_task_instances
tis = tis.order_by(TaskInstance.execution_date).all()
File "/home/ubuntu/.local/lib/python3.6/site-packages/sqlalchemy/orm/query.py", line 3233, in all
return list(self)
File "/home/ubuntu/.local/lib/python3.6/site-packages/sqlalchemy/orm/query.py", line 3389, in __iter__
return self._execute_and_instances(context)
File "/home/ubuntu/.local/lib/python3.6/site-packages/sqlalchemy/orm/query.py", line 3414, in _execute_and_instances
result = conn.execute(querycontext.statement, self._params)
File "/home/ubuntu/.local/lib/python3.6/site-packages/sqlalchemy/engine/base.py", line 982, in execute
return meth(self, multiparams, params)
File "/home/ubuntu/.local/lib/python3.6/site-packages/sqlalchemy/sql/elements.py", line 293, in _execute_on_connection
return connection._execute_clauseelement(self, multiparams, params)
File "/home/ubuntu/.local/lib/python3.6/site-packages/sqlalchemy/engine/base.py", line 1101, in _execute_clauseelement
distilled_params,
File "/home/ubuntu/.local/lib/python3.6/site-packages/sqlalchemy/engine/base.py", line 1250, in _execute_context
e, statement, parameters, cursor, context
File "/home/ubuntu/.local/lib/python3.6/site-packages/sqlalchemy/engine/base.py", line 1478, in _handle_dbapi_exception
util.reraise(*exc_info)
File "/home/ubuntu/.local/lib/python3.6/site-packages/sqlalchemy/util/compat.py", line 153, in reraise
raise value
File "/home/ubuntu/.local/lib/python3.6/site-packages/sqlalchemy/engine/base.py", line 1246, in _execute_context
cursor, statement, parameters, context
File "/home/ubuntu/.local/lib/python3.6/site-packages/sqlalchemy/engine/default.py", line 588, in do_execute
cursor.execute(statement, parameters)
File "/home/ubuntu/.local/lib/python3.6/site-packages/mysql/connector/cursor_cext.py", line 272, in execute
self._handle_result(result)
File "/home/ubuntu/.local/lib/python3.6/site-packages/mysql/connector/cursor_cext.py", line 163, in _handle_result
self._handle_resultset()
File "/home/ubuntu/.local/lib/python3.6/site-packages/mysql/connector/cursor_cext.py", line 651, in _handle_resultset
self._rows = self._cnx.get_rows()[0]
File "/home/ubuntu/.local/lib/python3.6/site-packages/mysql/connector/connection_cext.py", line 301, in get_rows
else self._cmysql.fetch_row()
SystemError: <built-in method fetch_row of _mysql_connector.MySQL object at 0x3cdaa10> returned a result with an error set
EDIT 2
What finally did work was using mysqlclient by specifying the SQLAlchemy connection string to begin with mysql+mysqldb. I am not giving this as an answer, because the initial problem persists.
I'm on Manjaro Linux KDE and every time I try to install a module with pip it gives me this error:
Defaulting to user installation because normal site-packages is not writeable
ERROR:
Exception:
Traceback (most recent call last):
File "/usr/lib/python3.8/site-packages/pip/_internal/cli/base_command.py", line 186, in _main
status = self.run(options, args)
File "/usr/lib/python3.8/site-packages/pip/_internal/commands/install.py", line 279, in run
session = self.get_default_session(options)
File "/usr/lib/python3.8/site-packages/pip/_internal/cli/req_command.py", line 74, in get_default_session
self._session = self.enter_context(self._build_session(options))
File "/usr/lib/python3.8/site-packages/pip/_internal/cli/req_command.py", line 84, in _build_session
session = PipSession(
File "/usr/lib/python3.8/site-packages/pip/_internal/network/session.py", line 241, in __init__
self.headers["User-Agent"] = user_agent()
File "/usr/lib/python3.8/site-packages/pip/_internal/network/session.py", line 132, in user_agent
zip(["name", "version", "id"], distro.linux_distribution()),
File "/usr/lib/python3.8/site-packages/distro.py", line 122, in linux_distribution
return _distro.linux_distribution(full_distribution_name)
File "/usr/lib/python3.8/site-packages/distro.py", line 677, in linux_distribution
self.version(),
File "/usr/lib/python3.8/site-packages/distro.py", line 737, in version
self.lsb_release_attr('release'),
File "/usr/lib/python3.8/site-packages/distro.py", line 899, in lsb_release_attr
return self._lsb_release_info.get(attribute, '')
File "/usr/lib/python3.8/site-packages/distro.py", line 552, in __get__
ret = obj.__dict__[self._fname] = self._f(obj)
File "/usr/lib/python3.8/site-packages/distro.py", line 1012, in _lsb_release_info
stdout = subprocess.check_output(cmd, stderr=devnull)
File "/usr/lib/python3.8/subprocess.py", line 411, in check_output
return run(*popenargs, stdout=PIPE, timeout=timeout, check=True,
File "/usr/lib/python3.8/site-packages/run/__init__.py", line 145, in __new__
process = cls.create_process(command, stdin, cwd=cwd, env=env, shell=shell)
File "/usr/lib/python3.8/site-packages/run/__init__.py", line 121, in create_process
shlex.split(command),
File "/usr/lib/python3.8/shlex.py", line 311, in split
return list(lex)
File "/usr/lib/python3.8/shlex.py", line 300, in __next__
token = self.get_token()
File "/usr/lib/python3.8/shlex.py", line 109, in get_token
raw = self.read_token()
File "/usr/lib/python3.8/shlex.py", line 140, in read_token
nextchar = self.instream.read(1)
AttributeError: 'tuple' object has no attribute 'read'
Traceback (most recent call last):
File "/usr/bin/pip3", line 11, in <module>
load_entry_point('pip==20.0.2', 'console_scripts', 'pip3')()
File "/usr/lib/python3.8/site-packages/pip/_internal/cli/main.py", line 75, in main
return command.main(cmd_args)
File "/usr/lib/python3.8/site-packages/pip/_internal/cli/base_command.py", line 105, in main
return self._main(args)
File "/usr/lib/python3.8/site-packages/pip/_internal/cli/base_command.py", line 224, in _main
self.handle_pip_version_check(options)
File "/usr/lib/python3.8/site-packages/pip/_internal/cli/req_command.py", line 143, in handle_pip_version_check
session = self._build_session(
File "/usr/lib/python3.8/site-packages/pip/_internal/cli/req_command.py", line 84, in _build_session
session = PipSession(
File "/usr/lib/python3.8/site-packages/pip/_internal/network/session.py", line 241, in __init__
self.headers["User-Agent"] = user_agent()
File "/usr/lib/python3.8/site-packages/pip/_internal/network/session.py", line 132, in user_agent
zip(["name", "version", "id"], distro.linux_distribution()),
File "/usr/lib/python3.8/site-packages/distro.py", line 122, in linux_distribution
return _distro.linux_distribution(full_distribution_name)
File "/usr/lib/python3.8/site-packages/distro.py", line 677, in linux_distribution
self.version(),
File "/usr/lib/python3.8/site-packages/distro.py", line 737, in version
self.lsb_release_attr('release'),
File "/usr/lib/python3.8/site-packages/distro.py", line 899, in lsb_release_attr
return self._lsb_release_info.get(attribute, '')
File "/usr/lib/python3.8/site-packages/distro.py", line 552, in __get__
ret = obj.__dict__[self._fname] = self._f(obj)
File "/usr/lib/python3.8/site-packages/distro.py", line 1012, in _lsb_release_info
stdout = subprocess.check_output(cmd, stderr=devnull)
File "/usr/lib/python3.8/subprocess.py", line 411, in check_output
return run(*popenargs, stdout=PIPE, timeout=timeout, check=True,
File "/usr/lib/python3.8/site-packages/run/__init__.py", line 145, in __new__
process = cls.create_process(command, stdin, cwd=cwd, env=env, shell=shell)
File "/usr/lib/python3.8/site-packages/run/__init__.py", line 121, in create_process
shlex.split(command),
File "/usr/lib/python3.8/shlex.py", line 311, in split
return list(lex)
File "/usr/lib/python3.8/shlex.py", line 300, in __next__
token = self.get_token()
File "/usr/lib/python3.8/shlex.py", line 109, in get_token
raw = self.read_token()
File "/usr/lib/python3.8/shlex.py", line 140, in read_token
nextchar = self.instream.read(1)
AttributeError: 'tuple' object has no attribute 'read'
Also, when I try to run a program where I imported selenium or any other installed module from pip it gives me the same error.
This is my pip version: pip 20.0.2 from /usr/lib/python3.8/site-packages/pip (python 3.8)
Thank you all in advance!