qtpy.PythonQtError: No Qt bindings could be found
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 few days ago i had to update some of the libraries because they were outdated.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!!
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 :)
I 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.
The 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).