I had anaconda running on my machine. few days ago i had to update some of the libraries because they were outdated. after the update, I was not able to launch anaconda-navigator or spyder anymore due to the following error:
(base) C:\>qtpy.PythonQtError: No Qt bindings could be found I've tried the following:
*unistall/reinstall the whole package *following commands:
conda update conda conda update --all conda install pyqt5 pip install pyqt5 *reset spyder settings
the installed packages and urls:
(base) C:\>SPYDER Traceback (most recent call last): File "C:\ProgramData\Anaconda3\lib\site-packages\qtpy\__init__.py", line 202, in <module> from PySide import __version__ as PYSIDE_VERSION # analysis:ignore ModuleNotFoundError: No module named 'PySide' During handling of the above exception, another exception occurred: Traceback (most recent call last): File "C:\ProgramData\Anaconda3\Scripts\spyder-script.py", line 10, in <module> sys.exit(main()) File "C:\ProgramData\Anaconda3\lib\site-packages\spyder\app\start.py", line 186, in main from spyder.app import mainwindow File "C:\ProgramData\Anaconda3\lib\site-packages\spyder\app\mainwindow.py", line 48, in <module> requirements.check_qt() File "C:\ProgramData\Anaconda3\lib\site-packages\spyder\requirements.py", line 41, in check_qt import qtpy File "C:\ProgramData\Anaconda3\lib\site-packages\qtpy\__init__.py", line 208, in <module> raise PythonQtError('No Qt bindings could be found') qtpy.PythonQtError: No Qt bindings could be found (base) C:\>conda list --show-channel-urls # packages in environment at C:\ProgramData\Anaconda3: # # Name Version Build Channel _ipyw_jlab_nb_ext_conf 0.1.0 py37_0 defaults alabaster 0.7.12 py_0 conda-forge anaconda custom py37_0 defaults anaconda-client 1.7.2 py_0 conda-forge anaconda-navigator 1.9.7 py37_0 defaults anaconda-project 0.8.2 py_1 conda-forge asn1crypto 0.24.0 py37_1003 conda-forge astroid 2.2.5 py37_0 conda-forge astropy 3.1.2 py37hfa6e2cd_0 conda-forge atomicwrites 1.3.0 py_0 conda-forge attrs 19.1.0 py_0 conda-forge babel 2.6.0 py_1 conda-forge backcall 0.1.0 py_0 conda-forge backports 1.0 py_2 conda-forge backports.os 0.1.1 py37_1000 conda-forge backports.shutil_get_terminal_size 1.0.0 py_3 conda-forge beautifulsoup4 4.7.1 py37_1001 conda-forge bitarray 0.9.2 py37hfa6e2cd_0 conda-forge bkcharts 0.2 py37_0 defaults blas 1.0 mkl conda-forge bleach 3.1.0 py_0 conda-forge blinker 1.4 py_1 conda-forge blosc 1.16.3 h6538335_0 conda-forge bokeh 1.1.0 py37_0 conda-forge boto 2.49.0 py_0 conda-forge boto3 1.9.143 py_0 conda-forge botocore 1.12.143 py_1 conda-forge bottleneck 1.2.1 py37h452e1ab_1001 conda-forge bz2file 0.98 py_0 conda-forge bzip2 1.0.6 hfa6e2cd_1002 conda-forge ca-certificates 2019.3.9 hecc5488_0 conda-forge certifi 2019.3.9 py37_0 conda-forge cffi 1.12.3 py37hb32ad35_0 conda-forge chardet 3.0.4 py37_1003 conda-forge click 7.0 py_0 conda-forge cloudpickle 0.8.1 py_0 conda-forge clyent 1.2.2 py_1 conda-forge colorama 0.4.1 py_0 conda-forge comtypes 1.1.7 py37_1000 conda-forge conda 4.6.14 py37_0 conda-forge conda-build 3.17.8 py37_1 conda-forge conda-env 2.6.0 1 conda-forge conda-verify 3.1.1 py37_1000 conda-forge console_shortcut 0.1.1 3 defaults contextlib2 0.5.5 py_2 conda-forge cryptography 2.6.1 py37hb32ad35_0 conda-forge curl 7.64.1 h4496350_0 conda-forge cycler 0.10.0 py_1 conda-forge cython 0.29.7 py37h6538335_0 conda-forge cytoolz 0.9.0.1 py37hfa6e2cd_1001 conda-forge dask 1.2.0 py_0 conda-forge dask-core 1.2.0 py_0 conda-forge decorator 4.4.0 py_0 conda-forge defusedxml 0.5.0 py_1 conda-forge distributed 1.27.1 py37_0 conda-forge docutils 0.14 py37_1001 conda-forge entrypoints 0.3 py37_1000 conda-forge et_xmlfile 1.0.1 py37_1000 conda-forge fastcache 1.1.0 py37hfa6e2cd_0 conda-forge filelock 3.0.10 py_0 conda-forge flask 1.0.2 py_2 conda-forge freetype 2.10.0 h5db478b_0 conda-forge future 0.17.1 py37_1000 conda-forge gensim 3.7.1 py37h6538335_1 conda-forge get_terminal_size 1.0.0 h38e98db_0 defaults gevent 1.4.0 py37hfa6e2cd_0 conda-forge glob2 0.6 py_0 conda-forge greenlet 0.4.15 py37hfa6e2cd_0 conda-forge h5py 2.9.0 nompi_py37h3cb27cb_1102 conda-forge hdf5 1.10.4 nompi_hcc15c50_1106 conda-forge heapdict 1.0.0 py37_1000 conda-forge html5lib 1.0.1 py_0 conda-forge icc_rt 2019.0.0 h0cc432a_1 defaults icu 58.1 vc14_0 conda-forge idna 2.8 py37_1000 conda-forge imageio 2.5.0 py37_0 conda-forge imagesize 1.1.0 py_0 conda-forge importlib_metadata 0.9 py37_0 conda-forge intel-openmp 2019.3 203 defaults ipykernel 5.1.0 py37h39e3cac_1002 conda-forge ipython 7.5.0 py37h39e3cac_0 conda-forge ipython_genutils 0.2.0 py_1 conda-forge ipywidgets 7.4.2 py_0 conda-forge isort 4.3.18 py37_0 conda-forge itsdangerous 1.1.0 py_0 conda-forge jdcal 1.4.1 py_0 conda-forge jedi 0.13.3 py37_0 conda-forge jinja2 2.10.1 py_0 conda-forge jmespath 0.9.4 py_0 conda-forge jpeg 9c hfa6e2cd_1001 conda-forge jsonschema 3.0.1 py37_0 conda-forge jupyter 1.0.0 py_2 conda-forge jupyter_client 5.2.4 py_3 conda-forge jupyter_console 6.0.0 py_0 conda-forge jupyter_core 4.4.0 py_0 conda-forge jupyterlab 0.35.6 py37_0 conda-forge jupyterlab_server 0.2.0 py_0 conda-forge keyring 19.0.1 py37_0 conda-forge kiwisolver 1.1.0 py37he980bc4_0 conda-forge krb5 1.16.3 hdd46e55_1001 conda-forge lazy-object-proxy 1.3.1 py37hfa6e2cd_1000 conda-forge libarchive 3.3.3 h0005e80_1004 conda-forge libblas 3.8.0 8_mkl conda-forge libcblas 3.8.0 8_mkl conda-forge libcurl 7.64.1 h4496350_0 conda-forge libiconv 1.15 hfa6e2cd_1005 conda-forge liblief 0.9.0 ha925a31_2 defaults libpng 1.6.37 h7602738_0 conda-forge libsodium 1.0.16 h2fa13f4_1001 conda-forge libssh2 1.8.2 h642c060_2 conda-forge libtiff 4.0.10 h016b793_1002 conda-forge libxml2 2.9.9 h9ce36c8_0 conda-forge libxslt 1.1.32 heafd4d3_1002 conda-forge llvmlite 0.28.0 py37_0 conda-forge locket 0.2.0 py_2 conda-forge lxml 4.3.3 py37heafd4d3_0 conda-forge lz4-c 1.8.3 he025d50_1001 conda-forge lzo 2.10 hfa6e2cd_1000 conda-forge m2w64-gcc-libgfortran 5.3.0 6 defaults m2w64-gcc-libs 5.3.0 7 defaults m2w64-gcc-libs-core 5.3.0 7 defaults m2w64-gmp 6.1.0 2 defaults m2w64-libwinpthread-git 5.0.0.4634.697f757 2 defaults markupsafe 1.1.1 py37hfa6e2cd_0 conda-forge matplotlib 3.0.3 py37_1 conda-forge matplotlib-base 3.0.3 py37h3e3dc42_1 conda-forge mccabe 0.6.1 py_1 conda-forge menuinst 1.4.16 py37_0 conda-forge mistune 0.8.4 py37hfa6e2cd_1000 conda-forge mkl 2019.3 203 defaults mkl-service 2.0.1 py37hfa6e2cd_0 conda-forge mkl_fft 1.0.12 py37hfa6e2cd_1 conda-forge mkl_random 1.0.4 py37h830ac7b_0 conda-forge mock 3.0.4 py37_0 conda-forge more-itertools 4.3.0 py37_1000 conda-forge mpmath 1.1.0 py_0 conda-forge msgpack-python 0.6.1 py37he980bc4_0 conda-forge msys2-conda-epoch 20160418 1 defaults multipledispatch 0.6.0 py_0 conda-forge navigator-updater 0.2.1 py37_0 defaults nbconvert 5.5.0 py_0 conda-forge nbformat 4.4.0 py_1 conda-forge networkx 2.3 py_0 conda-forge nltk 3.2.5 py_0 conda-forge nose 1.3.7 py37_1002 conda-forge notebook 5.7.8 py37_0 conda-forge numba 0.43.1 py37hf9181ef_0 defaults numexpr 2.6.9 py37h6538335_1000 conda-forge numpy 1.16.3 py37h19fb1c0_0 defaults numpy-base 1.16.3 py37hc3f5095_0 defaults numpydoc 0.9.1 py_0 conda-forge oauthlib 3.0.1 py_0 conda-forge olefile 0.46 py_0 conda-forge openpyxl 2.6.1 py_0 conda-forge openssl 1.1.1b hfa6e2cd_2 conda-forge packaging 19.0 py_0 conda-forge pandas 0.24.2 py37h6538335_0 conda-forge pandoc 2.7.2 0 conda-forge pandocfilters 1.4.2 py_1 conda-forge parso 0.4.0 py_0 conda-forge partd 0.3.9 py_0 conda-forge path.py 12.0.1 py_0 conda-forge pathlib2 2.3.3 py37_1000 conda-forge patsy 0.5.1 py_0 conda-forge pep8 1.7.1 py_0 conda-forge pickleshare 0.7.5 py37_1000 conda-forge pillow 6.0.0 py37h9a613e6_0 conda-forge pip 19.1.1 py37_0 conda-forge pkginfo 1.5.0.1 py_0 conda-forge pluggy 0.9.0 py_0 conda-forge ply 3.11 py_1 conda-forge powershell_shortcut 0.0.1 2 defaults prometheus_client 0.6.0 py_0 conda-forge prompt_toolkit 2.0.9 py_0 conda-forge psutil 5.6.2 py37hfa6e2cd_0 conda-forge py 1.8.0 py_0 conda-forge py-lief 0.9.0 py37ha925a31_2 defaults pycodestyle 2.5.0 py_0 conda-forge pycosat 0.6.3 py37hfa6e2cd_1001 conda-forge pycparser 2.19 py37_1 conda-forge pycrypto 2.6.1 py37hfa6e2cd_1002 conda-forge pycurl 7.43.0.2 py37h636d3bd_0 conda-forge pyflakes 2.1.1 py_0 conda-forge pygments 2.3.1 py_0 conda-forge pyjwt 1.7.1 py_0 conda-forge pylint 2.3.1 py37_0 conda-forge pyodbc 4.0.26 py37h6538335_0 conda-forge pyopenssl 19.0.0 py37_0 conda-forge pyparsing 2.4.0 py_0 conda-forge pyqt 5.9.2 py37h6538335_2 defaults pyreadline 2.1 py37_1000 conda-forge pyrsistent 0.15.1 py37hfa6e2cd_0 conda-forge pysocks 1.6.8 py37_1002 conda-forge pytables 3.5.1 py37hb9ab341_1 conda-forge pytest 4.4.1 py37_0 conda-forge pytest-arraydiff 0.3 py_0 conda-forge pytest-astropy 0.5.0 py_0 conda-forge pytest-doctestplus 0.3.0 py_0 conda-forge pytest-openfiles 0.3.1 py_0 conda-forge pytest-remotedata 0.3.1 py_0 conda-forge python 3.7.3 hb12ca83_0 conda-forge python-crfsuite 0.9.6 py37he980bc4_1000 conda-forge python-dateutil 2.8.0 py_0 conda-forge python-libarchive-c 2.8 py37_1004 conda-forge pytz 2019.1 py_0 conda-forge pywavelets 1.0.3 py37h452e1ab_1 conda-forge pywin32 224 py37hfa6e2cd_1000 conda-forge pywin32-ctypes 0.2.0 py37_1000 conda-forge pywinpty 0.5.5 py37_1000 conda-forge pyyaml 5.1 py37hfa6e2cd_0 conda-forge pyzmq 18.0.1 py37he7828b0_1 conda-forge qt 5.9.7 hc6833c9_1 conda-forge qtawesome 0.5.7 pyh8a2030e_0 conda-forge qtconsole 4.4.3 py_0 conda-forge qtpy 1.7.1 pyhde82777_0 conda-forge requests 2.21.0 py37_1000 conda-forge requests-oauthlib 1.2.0 py_0 conda-forge rope 0.14.0 py_0 conda-forge ruamel_yaml 0.15.71 py37hfa6e2cd_1000 conda-forge s3transfer 0.2.0 py37_0 conda-forge scikit-image 0.15.0 py37h6538335_0 conda-forge scikit-learn 0.20.3 py37h3d241f0_1 conda-forge scipy 1.2.1 py37h29ff71c_0 defaults seaborn 0.9.0 py_1 conda-forge send2trash 1.5.0 py_0 conda-forge setuptools 41.0.1 py37_0 conda-forge simplegeneric 0.8.1 py_1 conda-forge singledispatch 3.4.0.3 py37_1000 conda-forge sip 4.19.8 py37h6538335_1000 conda-forge six 1.12.0 py37_1000 conda-forge smart_open 1.8.3 py_0 conda-forge snappy 1.1.7 h6538335_1002 conda-forge snowballstemmer 1.2.1 py_1 conda-forge sortedcollections 1.1.2 py_0 conda-forge sortedcontainers 2.1.0 py_0 conda-forge soupsieve 1.9.1 py37_0 conda-forge sphinx 2.0.1 py_0 conda-forge sphinxcontrib 1.0 py37_1 defaults sphinxcontrib-applehelp 1.0.1 py_0 conda-forge sphinxcontrib-devhelp 1.0.1 py_0 conda-forge sphinxcontrib-htmlhelp 1.0.2 py_0 conda-forge sphinxcontrib-jsmath 1.0.1 py_0 conda-forge sphinxcontrib-qthelp 1.0.2 py_0 conda-forge sphinxcontrib-serializinghtml 1.1.1 py_0 conda-forge sphinxcontrib-websupport 1.1.0 py_1 conda-forge spyder 3.3.4 py37_0 defaults spyder-kernels 0.4.4 py37_0 conda-forge sqlalchemy 1.3.3 py37hfa6e2cd_0 conda-forge sqlite 3.26.0 hfa6e2cd_1001 conda-forge statsmodels 0.9.0 py37hfa6e2cd_1000 conda-forge sympy 1.4 py37_0 conda-forge tblib 1.3.2 py_1 conda-forge terminado 0.8.2 py37_0 conda-forge testpath 0.4.2 py_1001 conda-forge tk 8.6.9 hfa6e2cd_1001 conda-forge toolz 0.9.0 py_1 conda-forge tornado 6.0.2 py37hfa6e2cd_0 conda-forge tqdm 4.31.1 py_0 conda-forge traitlets 4.3.2 py37_1000 conda-forge twython 3.7.0 py_0 conda-forge unicodecsv 0.14.1 py_1 conda-forge urllib3 1.24.2 py37_0 conda-forge vc 14.1 h0510ff6_4 defaults vs2015_runtime 14.15.26706 h3a45250_4 defaults wcwidth 0.1.7 py_1 conda-forge webencodings 0.5.1 py_1 conda-forge werkzeug 0.15.2 py_0 conda-forge wheel 0.33.1 py37_0 conda-forge widgetsnbextension 3.4.2 py37_1000 conda-forge win_inet_pton 1.1.0 py37_0 conda-forge win_unicode_console 0.5 py37_1000 conda-forge wincertstore 0.2 py37_1002 conda-forge winpty 0.4.3 4 conda-forge wrapt 1.11.1 py37hfa6e2cd_0 conda-forge xlrd 1.2.0 py_0 conda-forge xlsxwriter 1.1.8 py_0 conda-forge xlwings 0.15.8 py37_0 conda-forge xlwt 1.3.0 py_1 conda-forge xz 5.2.4 h2fa13f4_1001 conda-forge yaml 0.1.7 hfa6e2cd_1001 conda-forge zeromq 4.3.1 he025d50_1000 conda-forge zict 0.1.4 py_0 conda-forge zipp 0.4.0 py_0 conda-forge zlib 1.2.11 h2fa13f4_1004 conda-forge zstd 1.3.3 vc14_1 conda-forge (base) C:\> (base) C:\>CONDA INSTALL pyqt5 Does anyone has any idea that might help? Thanks in advance!!
3 Answers
I faced a similar problem, however, for me, the solution was an easy one. Please go through the following points.
- Keep a native python installed on your machine.
- Run "pip install pyqt5-tools" from cmd.
- You should have a message on screen post-installation - "Successfully installed click-7.0 pyqt5-5.13.0 pyqt5-tools-5.13.0.1.5 python-dotenv-0.10.3" :
Installation snap for Reference
Hope this will work for you :)
1I had the same problem "qtpy.PythonQtError: No Qt bindings could be found" after an update to spyder 4.0.1
After trying $pip3 install -U pyqt5 --user I got the error message:
_'ERROR: spyder 4.0.1 has requirement pyqt5<5.13; python_version >= "3", but you'll have pyqt5 5.14.1 which is incompatible.'_
So I updated with a compatible version:
pip3 install pyqt5==5.12 --user
And now spyder is working.
1The real fix that worked for me, because I really did this, was to install the module that was causing the error. That is the PySide module.
Do not install PySide (pip install PySide) unless you are using Python 3.4 or less.
If you are running Python 3.4 and up (up to 3.7), you need to install PySide2 (pip install PySide2).
