I'm getting the following error trying to run ipython3.
catch_config_error() missing 1 required positional argument: 'app'
I first got it on my Mac (python36). As my system has all sorts of customizations, I tried it again on a Linux system (Centos 7.4). I install ipython using pip3 and everything seemed to install cleanly. (On the same system, if i do this with python2, it seems to work.
Complete error log:
[scott] ipython3
Traceback (most recent call last):
File "/usr/bin/ipython3", line 7, in <module>
from IPython import start_ipython
File "/usr/lib/python3.4/site-packages/IPython/__init__.py", line 54, in <module>
from .core.application import Application
File "/usr/lib/python3.4/site-packages/IPython/core/application.py", line 23, in <module>
from traitlets.config.application import Application, catch_config_error
File "/usr/lib/python3.4/site-packages/traitlets/config/__init__.py", line 6, in <module>
from .application import *
File "/usr/lib/python3.4/site-packages/traitlets/config/application.py", line 120, in <module>
class Application(SingletonConfigurable):
File "/usr/lib/python3.4/site-packages/traitlets/config/application.py", line 291, in Application
def initialize(self, argv=None):
TypeError: catch_config_error() missing 1 required positional argument: 'app'
This is happening because traitlets relies on a package called 'decorator' that was just updated from 4.1.2 to 4.2.0 and broken its backward compatibility.
If you're using a requirements file or pip, install decorator==4.1.2 before installing IPython.
I tried in Ubuntu 16.04.
I also had the same problem (Python 3.6)
I tried again today.
$ sudo -H pip3 install --upgrade ipython
Then, decorator 4.2.1 is newly installed and the problem is solved.
Related
I am aware that very similar questions have been asked previously but I have found these have tended to include Docker, which I am not using at this time, nor do I have installed. I am led to believe that WSL2 should be an alternative to Docker regarding running Airflow on Windows.
I am using WSL2 on my Windows 11 laptop and have installed Apache-Airflow from a tutorial from the following link:
https://coding-stream-of-consciousness.com/2018/11/06/apache-airflow-windows-10-install-ubuntu/
On WSL2 I have:
Python version 3.8.10
Pip version 20.0.2
Apache-Airflow 2.4.1 (I believe)
I have run the following commands (as per the tutorial) with no issue:
sudo apt-get install software-properties-common
sudo apt-add-repository universe
sudo apt-get update
sudo apt-get install python-pip
sudo pip install apache-airflow #I had path issues without 'sudo' command
But when I attempt to use the 'airflow' command in the WSL2 Ubuntu terminal, I am greeted with the following error:
$ airflow
Unable to load the config, contains a configuration error.
Traceback (most recent call last):
File "/usr/lib/python3.8/logging/config.py", line 563, in configure
handler = self.configure_handler(handlers[name])
File "/usr/lib/python3.8/logging/config.py", line 744, in configure_handler
result = factory(**kwargs)
File "/usr/local/lib/python3.8/dist-packages/airflow/utils/log/file_processor_handler.py", line 45, in __init__
self.filename_template, self.filename_jinja_template = parse_template_string(filename_template)
File "/usr/local/lib/python3.8/dist-packages/airflow/utils/helpers.py", line 165, in parse_template_string
import jinja2
File "/usr/lib/python3/dist-packages/jinja2/__init__.py", line 33, in <module>
from jinja2.environment import Environment, Template
File "/usr/lib/python3/dist-packages/jinja2/environment.py", line 15, in <module>
from jinja2 import nodes
File "/usr/lib/python3/dist-packages/jinja2/nodes.py", line 23, in <module>
from jinja2.utils import Markup
File "/usr/lib/python3/dist-packages/jinja2/utils.py", line 656, in <module>
from markupsafe import Markup, escape, soft_unicode
ImportError: cannot import name 'soft_unicode' from 'markupsafe' (/usr/local/lib/python3.8/dist-packages/markupsafe/__init__.py)
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "/usr/local/bin/airflow", line 5, in <module>
from airflow.__main__ import main
File "/usr/local/lib/python3.8/dist-packages/airflow/__init__.py", line 46, in <module>
settings.initialize()
File "/usr/local/lib/python3.8/dist-packages/airflow/settings.py", line 564, in initialize
LOGGING_CLASS_PATH = configure_logging()
File "/usr/local/lib/python3.8/dist-packages/airflow/logging_config.py", line 74, in configure_logging
raise e
File "/usr/local/lib/python3.8/dist-packages/airflow/logging_config.py", line 69, in configure_logging
dictConfig(logging_config)
File "/usr/lib/python3.8/logging/config.py", line 808, in dictConfig
dictConfigClass(config).configure()
File "/usr/lib/python3.8/logging/config.py", line 570, in configure
raise ValueError('Unable to configure handler '
ValueError: Unable to configure handler 'processor'
I have googled the ValueError extensively and can't find any clear solutions that don't involve Docker.
Any insight into the error would be much appreciated!
You should install airflow using constraints.
https://airflow.apache.org/docs/apache-airflow/stable/installation/installing-from-pypi.html#installation-tools
This is the only way installation of airflow is guaranteed to work.
I have no idea what I'm doing.
MacOS Version 10.13.4 and Python 3.7.3
I had anaconda installed and was using spyder fine, but I thought I'd install spyder-terminal using command pip install spyder-terminal because I thought that's how I'd get the terminal to show? Anyways now when I try opening spyder, I get this error:
objc[1685]: Class RunLoopModeTracker is implemented in both /anaconda3/lib/python3.7/site-packages/PyQt5/Qt/lib/QtCore.framework/Versions/5/QtCore (0x117d8e270) and /anaconda3/lib/libQt5Core.5.dylib (0x11fabda80). One of the two will be used. Which one is undefined.
Traceback (most recent call last):
File "/anaconda3/bin/spyder", line 11, in <module>
sys.exit(main())
File "/anaconda3/lib/python3.7/site-packages/spyder/app/start.py", line 186, in main
from spyder.app import mainwindow
File "/anaconda3/lib/python3.7/site-packages/spyder/app/mainwindow.py", line 90, in <module>
from qtpy import QtWebEngineWidgets # analysis:ignore
File "/anaconda3/lib/python3.7/site-packages/qtpy/QtWebEngineWidgets.py", line 22, in <module>
from PyQt5.QtWebEngineWidgets import QWebEnginePage
ValueError: PyCapsule_GetPointer called with incorrect name
I tried uninstalling anaconda and then re-installing/updating and re-installing spyder, but I'm still unable to open. Anyone know how to fix this?
I'm running High Sierra on my Mac. I have python versions 2.7, 3.6 and 3.7. I have conda environments for each version. I had been using Spyder 3.3.2 a lot and really liked it. Recently however it stopped working. Best I can recall the problems started when I tried upgrading to Spyder 4.0. I've deleted Anaconda and reloaded it to no avail. I've tried it on Python 2.7 and 3.6 and I get the same error messages.
What I've tried: Uninstall and install spyder. I've reloaded pyqt and it loaded with no errors. I deleted and reinstalled Anaconda.
Can anyone tell me what I need to do? The error messages are shown below.
[py36] $ spyder
Traceback (most recent call last):
File "/Users/johnny/anaconda3/envs/py36/lib/python3.6/site-packages/qtpy/QtWebEngineWidgets.py", line 22, in <module>
from PyQt5.QtWebEngineWidgets import QWebEnginePage
ModuleNotFoundError: No module named 'PyQt5.QtWebEngineWidgets'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/Users/johnny/anaconda3/envs/py36/bin/spyder", line 11, in <module>
sys.exit(main())
File "/Users/johnny/anaconda3/envs/py36/lib/python3.6/site-packages/spyder/app/start.py", line 186, in main
from spyder.app import mainwindow
File "/Users/johnny/anaconda3/envs/py36/lib/python3.6/site-packages/spyder/app/mainwindow.py", line 90, in <module>
from qtpy import QtWebEngineWidgets # analysis:ignore
File "/Users/johnny/anaconda3/envs/py36/lib/python3.6/site-packages/qtpy/QtWebEngineWidgets.py", line 26, in <module>
from PyQt5.QtWebKitWidgets import QWebPage as QWebEnginePage
ModuleNotFoundError: No module named 'PyQt5.QtWebKitWidgets'
[johnny:~] [py36] 2s 1 $
I found a solution, more of a workaround I suppose. I completely deleted my anaconda3 directory and returned to the Anaconda home page and reinstalled anaconda3. Now Spyder runs fine.
I receive an error when trying to import zmq:
Traceback (most recent call last): File "BasicPub.py", line 1, in <module>
import zmq File "/home/przemek/Enthought/Canopy_32bit/User/lib/python2.7/site-packages/zmq/__init__.py", line 66, in <module>
from zmq import backend File "/home/przemek/Enthought/Canopy_32bit/User/lib/python2.7/site-packages/zmq/backend/__init__.py", line 40, in <module>
reraise(*exc_info) File "/home/przemek/Enthought/Canopy_32bit/User/lib/python2.7/site-packages/zmq/backend/__init__.py", line 27, in <module>
_ns = select_backend(first) File "/home/przemek/Enthought/Canopy_32bit/User/lib/python2.7/site-packages/zmq/backend/select.py", line 27, in select_backend
mod = __import__(name, fromlist=public_api) File "/home/przemek/Enthought/Canopy_32bit/User/lib/python2.7/site-packages/zmq/backend/cython/__init__.py", line 6, in <module>
from . import (constants, error, message, context, ImportError: /home/przemek/Enthought/Canopy_32bit/User/lib/python2.7/site-packages/zmq/backend/cython/message.so: undefined symbol: zmq_msg_gets
Someone has suggested that I should completely remove zmq and reinstall it.
I have tried to do it with pip but it seems that in some config files remain. I have used locate and I manually removed some directories. I thought that it would help but after reinstallation still I have an error. I am using Python2.7 and Ubuntu 14.04.
You can try the following:
sudo rm /usr/local/lib/libzmq*
sudo rm /usr/local/include/zmq.h
Since these are the two locations that ZeroMQ's libzmq installs into.
This link provides a few options on how to uninstall zeromq if you use a Debian operating system.
You would need to use the purge command:
sudo apt-get purge --auto-remove python-zmq
You probably installed it using the source ditribution.
To undo this, cd to the build directory and type:
make uninstall
I've recently installed pylint on a windows 7 and when I run it I get the error:
Error executing PyLint: Command failed with error=None, status=1; stderr:
Traceback (most recent call last):
File "C:\Python27\Scripts\pylint", line 3, in <module>
run_pylint()
File "c:\python27\lib\site-packages\pylint\__init__.py", line 20, in run_pylint
from pylint.lint import Run
File "c:\python27\lib\site-packages\pylint\lint.py", line 30, in <module>
from pylint.checkers import utils #pylint: disable=unused-import
File "c:\python27\lib\site-packages\pylint\checkers__init__.py", line 47, in
from pylint.reporters import diff_string
File "c:\python27\lib\site-packages\pylint\reporters__init__.py", line 20, in
from pylint.utils import MSG_TYPES
File "c:\python27\lib\site-packages\pylint\utils.py", line 32, in
from astroid import nodes, Module
ImportError: No module named astroid
I've followed the install instructions as best I can but can't seem to get past this.
Use this link to install pip properly How do I install pip on Windows?
then do the pip install pylint
then do go through this note http://docs.pylint.org/installation.html#note-for-windows-users