Unable to launch Anaconda Navigator or Spyder (Windows 10/64-bit)

[ResearchLabDev]

Actual Behavior

Unable to launch Anaconda Navigator (anaconda3) or Spyder on a 64-bit Windows 10 machine . I have reviewed several reports of this issue, however the fixes (e.g., update conda, reinstall PyQt) have not resolved my issue.

Expected Behavior

I was expecting either Anaconda Navigator and Spyder to launch. However, neither were able to. The below Traceback is from when I tried to launch Anaconda Navigator via the command prompt.

``` Traceback (most recent call last): File "C:\Users\Admin\anaconda3\Scripts\anaconda-navigator-script.py", line 6, in from anaconda_navigator.app.main import main File "C:\Users\Admin\anaconda3\lib\site-packages\anaconda_navigator\app\main.py", line 22, in from anaconda_navigator.utils.conda import is_conda_available File "C:\Users\Admin\anaconda3\lib\site-packages\anaconda_navigator\utils\__init__.py", line 15, in from qtpy.QtGui import QIcon File "C:\Users\Admin\anaconda3\lib\site-packages\qtpy\__init__.py", line 210, in raise PythonQtError('No Qt bindings could be found') qtpy.PythonQtError: No Qt bindings could be found ```

Steps to Reproduce

1.) Clicked Anaconda Navigator and Spyder shortcuts, neither will launch desired program. 2.) Attempted to load Anaconda Navigator and Spyder via command prompt, but still no launch.

Anaconda or Miniconda version:

Anaconda 2020.02

Operating System:

Windows 10 Home (64-bit)

conda info

``` active environment : base active env location : C:\Users\Admin\anaconda3 shell level : 1 user config file : C:\Users\Admin\.condarc populated config files : C:\Users\Admin\.condarc conda version : 4.8.2 conda-build version : 3.18.11 python version : 3.7.6.final.0 virtual packages : __cuda=9.1 base environment : C:\Users\Admin\anaconda3 (writable) channel URLs : https://repo.anaconda.com/pkgs/main/win-64 https://repo.anaconda.com/pkgs/main/noarch https://repo.anaconda.com/pkgs/r/win-64 https://repo.anaconda.com/pkgs/r/noarch https://repo.anaconda.com/pkgs/msys2/win-64 https://repo.anaconda.com/pkgs/msys2/noarch package cache : C:\Users\Admin\anaconda3\pkgs C:\Users\Admin\.conda\pkgs C:\Users\Admin\AppData\Local\conda\conda\pkgs envs directories : C:\Users\Admin\anaconda3\envs C:\Users\Admin\.conda\envs C:\Users\Admin\AppData\Local\conda\conda\envs platform : win-64 user-agent : conda/4.8.2 requests/2.22.0 CPython/3.7.6 Windows/10 Windows/10.0.17134 administrator : False netrc file : None offline mode : False ```

conda list --show-channel-urls

``` # Name Version Build Channel _ipyw_jlab_nb_ext_conf 0.1.0 py37_0 alabaster 0.7.12 py37_0 anaconda 2020.02 py37_0 anaconda-client 1.7.2 py37_0 anaconda-navigator 1.9.12 py37_0 anaconda-project 0.8.4 py_0 argh 0.26.2 py37_0 asn1crypto 1.3.0 py37_0 astroid 2.3.3 py37_0 astropy 4.0 py37he774522_0 atomicwrites 1.3.0 py37_1 attrs 19.3.0 py_0 autopep8 1.4.4 py_0 babel 2.8.0 py_0 backcall 0.1.0 py37_0 backports 1.0 py_2 backports.functools_lru_cache 1.6.1 py_0 backports.shutil_get_terminal_size 1.0.0 py37_2 backports.tempfile 1.0 py_1 backports.weakref 1.0.post1 py_1 bcrypt 3.1.7 py37he774522_0 beautifulsoup4 4.8.2 py37_0 bitarray 1.2.1 py37he774522_0 bkcharts 0.2 py37_0 blas 1.0 mkl bleach 3.1.0 py37_0 blosc 1.16.3 h7bd577a_0 bokeh 1.4.0 py37_0 boto 2.49.0 py37_0 bottleneck 1.3.2 py37h2a96729_0 bzip2 1.0.8 he774522_0 ca-certificates 2020.1.1 0 certifi 2019.11.28 py37_0 cffi 1.14.0 py37h7a1dbc1_0 chardet 3.0.4 py37_1003 click 7.0 py37_0 cloudpickle 1.3.0 py_0 clyent 1.2.2 py37_1 colorama 0.4.3 py_0 comtypes 1.1.7 py37_0 conda 4.8.2 py37_0 conda-build 3.18.11 py37_0 conda-env 2.6.0 1 conda-package-handling 1.6.0 py37h62dcd97_0 conda-verify 3.4.2 py_1 console_shortcut 0.1.1 4 contextlib2 0.6.0.post1 py_0 cryptography 2.8 py37h7a1dbc1_0 curl 7.68.0 h2a8f88b_0 cycler 0.10.0 py37_0 cython 0.29.15 py37ha925a31_0 cytoolz 0.10.1 py37he774522_0 dask 2.11.0 py_0 dask-core 2.11.0 py_0 decorator 4.4.1 py_0 defusedxml 0.6.0 py_0 diff-match-patch 20181111 py_0 distributed 2.11.0 py37_0 docutils 0.16 py37_0 entrypoints 0.3 py37_0 et_xmlfile 1.0.1 py37_0 fastcache 1.1.0 py37he774522_0 filelock 3.0.12 py_0 flake8 3.7.9 py37_0 flask 1.1.1 py_0 freetype 2.9.1 ha9979f8_1 fsspec 0.6.2 py_0 future 0.18.2 py37_0 get_terminal_size 1.0.0 h38e98db_0 gevent 1.4.0 py37he774522_0 glob2 0.7 py_0 greenlet 0.4.15 py37hfa6e2cd_0 h5py 2.10.0 py37h5e291fa_0 hdf5 1.10.4 h7ebc959_0 heapdict 1.0.1 py_0 html5lib 1.0.1 py37_0 hypothesis 5.5.4 py_0 icc_rt 2019.0.0 h0cc432a_1 icu 58.2 ha66f8fd_1 idna 2.8 py37_0 imageio 2.6.1 py37_0 imagesize 1.2.0 py_0 importlib_metadata 1.5.0 py37_0 intel-openmp 2020.0 166 intervaltree 3.0.2 py_0 ipykernel 5.1.4 py37h39e3cac_0 ipython 7.12.0 py37h5ca1d4c_0 ipython_genutils 0.2.0 py37_0 ipywidgets 7.5.1 py_0 isort 4.3.21 py37_0 itsdangerous 1.1.0 py37_0 jdcal 1.4.1 py_0 jedi 0.14.1 py37_0 jinja2 2.11.1 py_0 joblib 0.14.1 py_0 jpeg 9b hb83a4c4_2 json5 0.9.1 py_0 jsonschema 3.2.0 py37_0 jupyter 1.0.0 py37_7 jupyter_client 5.3.4 py37_0 jupyter_console 6.1.0 py_0 jupyter_core 4.6.1 py37_0 jupyterlab 1.2.6 pyhf63ae98_0 jupyterlab_server 1.0.6 py_0 keyring 21.1.0 py37_0 kiwisolver 1.1.0 py37ha925a31_0 krb5 1.17.1 hc04afaa_0 lazy-object-proxy 1.4.3 py37he774522_0 libarchive 3.3.3 h0643e63_5 libcurl 7.68.0 h2a8f88b_0 libiconv 1.15 h1df5818_7 liblief 0.9.0 ha925a31_2 libpng 1.6.37 h2a8f88b_0 libsodium 1.0.16 h9d3ae62_0 libspatialindex 1.9.3 h33f27b4_0 libssh2 1.8.2 h7a1dbc1_0 libtiff 4.1.0 h56a325e_0 libxml2 2.9.9 h464c3ec_0 libxslt 1.1.33 h579f668_0 llvmlite 0.31.0 py37ha925a31_0 locket 0.2.0 py37_1 lxml 4.5.0 py37h1350720_0 lz4-c 1.8.1.2 h2fa13f4_0 lzo 2.10 h6df0209_2 m2w64-gcc-libgfortran 5.3.0 6 m2w64-gcc-libs 5.3.0 7 m2w64-gcc-libs-core 5.3.0 7 m2w64-gmp 6.1.0 2 m2w64-libwinpthread-git 5.0.0.4634.697f757 2 markupsafe 1.1.1 py37he774522_0 matplotlib 3.1.3 py37_0 matplotlib-base 3.1.3 py37h64f37c6_0 mccabe 0.6.1 py37_1 menuinst 1.4.16 py37he774522_0 mistune 0.8.4 py37he774522_0 mkl 2020.0 166 mkl-service 2.3.0 py37hb782905_0 mkl_fft 1.0.15 py37h14836fe_0 mkl_random 1.1.0 py37h675688f_0 mock 4.0.1 py_0 more-itertools 8.2.0 py_0 mpmath 1.1.0 py37_0 msgpack-python 0.6.1 py37h74a9793_1 msys2-conda-epoch 20160418 1 multipledispatch 0.6.0 py37_0 navigator-updater 0.2.1 py37_0 nbconvert 5.6.1 py37_0 nbformat 5.0.4 py_0 networkx 2.4 py_0 nltk 3.4.5 py37_0 nose 1.3.7 py37_2 notebook 6.0.3 py37_0 numba 0.48.0 py37h47e9c7a_0 numexpr 2.7.1 py37h25d0782_0 numpy 1.18.1 py37h93ca92e_0 numpy-base 1.18.1 py37hc3f5095_1 numpydoc 0.9.2 py_0 olefile 0.46 py37_0 openpyxl 3.0.3 py_0 openssl 1.1.1d he774522_4 packaging 20.1 py_0 pandas 1.0.1 py37h47e9c7a_0 pandoc 2.2.3.2 0 pandocfilters 1.4.2 py37_1 paramiko 2.7.1 py_0 parso 0.5.2 py_0 partd 1.1.0 py_0 path 13.1.0 py37_0 path.py 12.4.0 0 pathlib2 2.3.5 py37_0 pathtools 0.1.2 py_1 patsy 0.5.1 py37_0 pep8 1.7.1 py37_0 pexpect 4.8.0 py37_0 pickleshare 0.7.5 py37_0 pillow 7.0.0 py37hcc1f983_0 pip 20.0.2 py37_1 pkginfo 1.5.0.1 py37_0 pluggy 0.13.1 py37_0 ply 3.11 py37_0 powershell_shortcut 0.0.1 3 prometheus_client 0.7.1 py_0 prompt_toolkit 3.0.3 py_0 psutil 5.6.7 py37he774522_0 py 1.8.1 py_0 py-lief 0.9.0 py37ha925a31_2 pycodestyle 2.5.0 py37_0 pycosat 0.6.3 py37he774522_0 pycparser 2.19 py37_0 pycrypto 2.6.1 py37hfa6e2cd_9 pycurl 7.43.0.5 py37h7a1dbc1_0 pydocstyle 4.0.1 py_0 pyflakes 2.1.1 py37_0 pygments 2.5.2 py_0 pylint 2.4.4 py37_0 pynacl 1.3.0 py37h62dcd97_0 pyodbc 4.0.30 py37ha925a31_0 pyopenssl 19.1.0 py37_0 pyparsing 2.4.6 py_0 pyqt 5.9.2 py37h6538335_2 pyreadline 2.1 py37_1 pyrsistent 0.15.7 py37he774522_0 pysocks 1.7.1 py37_0 pytables 3.6.1 py37h1da0976_0 pytest 5.3.5 py37_0 pytest-arraydiff 0.3 py37h39e3cac_0 pytest-astropy 0.8.0 py_0 pytest-astropy-header 0.1.2 py_0 pytest-doctestplus 0.5.0 py_0 pytest-openfiles 0.4.0 py_0 pytest-remotedata 0.3.2 py37_0 python 3.7.6 h60c2a47_2 python-dateutil 2.8.1 py_0 python-jsonrpc-server 0.3.4 py_0 python-language-server 0.31.7 py37_0 python-libarchive-c 2.8 py37_13 pytz 2019.3 py_0 pywavelets 1.1.1 py37he774522_0 pywin32 227 py37he774522_1 pywin32-ctypes 0.2.0 py37_1000 pywinpty 0.5.7 py37_0 pyyaml 5.3 py37he774522_0 pyzmq 18.1.1 py37ha925a31_0 qdarkstyle 2.8 py_0 qt 5.9.7 vc14h73c81de_0 qtawesome 0.6.1 py_0 qtconsole 4.6.0 py_1 qtpy 1.9.0 py_0 requests 2.22.0 py37_1 rope 0.16.0 py_0 rtree 0.9.3 py37h21ff451_0 ruamel_yaml 0.15.87 py37he774522_0 scikit-image 0.16.2 py37h47e9c7a_0 scikit-learn 0.22.1 py37h6288b17_0 scipy 1.4.1 py37h9439919_0 seaborn 0.10.0 py_0 send2trash 1.5.0 py37_0 setuptools 45.2.0 py37_0 simplegeneric 0.8.1 py37_2 singledispatch 3.4.0.3 py37_0 sip 4.19.8 py37h6538335_0 six 1.14.0 py37_0 snappy 1.1.7 h777316e_3 snowballstemmer 2.0.0 py_0 sortedcollections 1.1.2 py37_0 sortedcontainers 2.1.0 py37_0 soupsieve 1.9.5 py37_0 sphinx 2.4.0 py_0 sphinxcontrib 1.0 py37_1 sphinxcontrib-applehelp 1.0.1 py_0 sphinxcontrib-devhelp 1.0.1 py_0 sphinxcontrib-htmlhelp 1.0.2 py_0 sphinxcontrib-jsmath 1.0.1 py_0 sphinxcontrib-qthelp 1.0.2 py_0 sphinxcontrib-serializinghtml 1.1.3 py_0 sphinxcontrib-websupport 1.2.0 py_0 spyder 4.0.1 py37_0 spyder-kernels 1.8.1 py37_0 sqlalchemy 1.3.13 py37he774522_0 sqlite 3.31.1 he774522_0 statsmodels 0.11.0 py37he774522_0 sympy 1.5.1 py37_0 tbb 2020.0 h74a9793_0 tblib 1.6.0 py_0 terminado 0.8.3 py37_0 testpath 0.4.4 py_0 tk 8.6.8 hfa6e2cd_0 toolz 0.10.0 py_0 tornado 6.0.3 py37he774522_3 tqdm 4.42.1 py_0 traitlets 4.3.3 py37_0 ujson 1.35 py37hfa6e2cd_0 unicodecsv 0.14.1 py37_0 urllib3 1.25.8 py37_0 vc 14.1 h0510ff6_4 vs2015_runtime 14.16.27012 hf0eaf9b_1 watchdog 0.10.2 py37_0 wcwidth 0.1.8 py_0 webencodings 0.5.1 py37_1 werkzeug 1.0.0 py_0 wheel 0.34.2 py37_0 widgetsnbextension 3.5.1 py37_0 win_inet_pton 1.1.0 py37_0 win_unicode_console 0.5 py37_0 wincertstore 0.2 py37_0 winpty 0.4.3 4 wrapt 1.11.2 py37he774522_0 xlrd 1.2.0 py37_0 xlsxwriter 1.2.7 py_0 xlwings 0.17.1 py37_0 xlwt 1.3.0 py37_0 xmltodict 0.12.0 py_0 xz 5.2.4 h2fa13f4_4 yaml 0.1.7 hc54c509_2 yapf 0.28.0 py_0 zeromq 4.3.1 h33f27b4_3 zict 1.0.0 py_0 zipp 2.2.0 py_0 zlib 1.2.11 h62dcd97_3 zstd 1.3.7 h508b16e_0 ```

[sreek011]

Facing the same issue ...

(base) C:\Users\panicker>conda info

 active environment : base
active env location : C:\Users\panicker\anaconda3
        shell level : 1
   user config file : C:\Users\panicker\.condarc

populated config files : C:\Users\panicker.condarc conda version : 4.8.2 conda-build version : 3.18.11 python version : 3.7.6.final.0 virtual packages : __cuda=10.1 base environment : C:\Users\panicker\anaconda3 (writable) channel URLs : https://repo.anaconda.com/pkgs/main/win-64 https://repo.anaconda.com/pkgs/main/noarch https://repo.anaconda.com/pkgs/r/win-64 https://repo.anaconda.com/pkgs/r/noarch https://repo.anaconda.com/pkgs/msys2/win-64 https://repo.anaconda.com/pkgs/msys2/noarch package cache : C:\Users\panicker\anaconda3\pkgs C:\Users\panicker.conda\pkgs C:\Users\panicker\AppData\Local\conda\conda\pkgs envs directories : C:\Users\panicker\anaconda3\envs C:\Users\panicker.conda\envs C:\Users\panicker\AppData\Local\conda\conda\envs platform : win-64 user-agent : conda/4.8.2 requests/2.22.0 CPython/3.7.6 Windows/10 Windows/10.0.18362 administrator : False netrc file : None offline mode : False

(base) C:\Users\panicker>conda list --show-channel-urls

packages in environment at C:\Users\panicker\anaconda3:

#

Name Version Build Channel

_ipyw_jlab_nb_ext_conf 0.1.0 py37_0 defaults alabaster 0.7.12 py37_0 defaults anaconda 2020.02 py37_0 defaults anaconda-client 1.7.2 py37_0 defaults anaconda-navigator 1.9.12 py37_0 defaults anaconda-project 0.8.4 py_0 defaults argh 0.26.2 py37_0 defaults asn1crypto 1.3.0 py37_0 defaults astroid 2.3.3 py37_0 defaults astropy 4.0 py37he774522_0 defaults atomicwrites 1.3.0 py37_1 defaults attrs 19.3.0 py_0 defaults autopep8 1.4.4 py_0 defaults babel 2.8.0 py_0 defaults backcall 0.1.0 py37_0 defaults backports 1.0 py_2 defaults backports.functools_lru_cache 1.6.1 py_0 defaults backports.shutil_get_terminal_size 1.0.0 py37_2 defaults backports.tempfile 1.0 py_1 defaults backports.weakref 1.0.post1 py_1 defaults bcrypt 3.1.7 py37he774522_0 defaults beautifulsoup4 4.8.2 py37_0 defaults bitarray 1.2.1 py37he774522_0 defaults bkcharts 0.2 py37_0 defaults blas 1.0 mkl defaults bleach 3.1.0 py37_0 defaults blosc 1.16.3 h7bd577a_0 defaults bokeh 1.4.0 py37_0 defaults boto 2.49.0 py37_0 defaults bottleneck 1.3.2 py37h2a96729_0 defaults bzip2 1.0.8 he774522_0 defaults ca-certificates 2020.1.1 0 defaults certifi 2019.11.28 py37_0 defaults cffi 1.14.0 py37h7a1dbc1_0 defaults chardet 3.0.4 py37_1003 defaults click 7.0 py37_0 defaults cloudpickle 1.3.0 py_0 defaults clyent 1.2.2 py37_1 defaults colorama 0.4.3 py_0 defaults comtypes 1.1.7 py37_0 defaults conda 4.8.2 py37_0 defaults conda-build 3.18.11 py37_0 defaults conda-env 2.6.0 1 defaults conda-package-handling 1.6.0 py37h62dcd97_0 defaults conda-verify 3.4.2 py_1 defaults console_shortcut 0.1.1 4 defaults contextlib2 0.6.0.post1 py_0 defaults cryptography 2.8 py37h7a1dbc1_0 defaults curl 7.68.0 h2a8f88b_0 defaults cycler 0.10.0 py37_0 defaults cython 0.29.15 py37ha925a31_0 defaults cytoolz 0.10.1 py37he774522_0 defaults dask 2.11.0 py_0 defaults dask-core 2.11.0 py_0 defaults decorator 4.4.1 py_0 defaults defusedxml 0.6.0 py_0 defaults diff-match-patch 20181111 py_0 defaults distributed 2.11.0 py37_0 defaults docutils 0.16 py37_0 defaults entrypoints 0.3 py37_0 defaults et_xmlfile 1.0.1 py37_0 defaults fastcache 1.1.0 py37he774522_0 defaults filelock 3.0.12 py_0 defaults flake8 3.7.9 py37_0 defaults flask 1.1.1 py_0 defaults freetype 2.9.1 ha9979f8_1 defaults fsspec 0.6.2 py_0 defaults future 0.18.2 py37_0 defaults get_terminal_size 1.0.0 h38e98db_0 defaults gevent 1.4.0 py37he774522_0 defaults glob2 0.7 py_0 defaults greenlet 0.4.15 py37hfa6e2cd_0 defaults h5py 2.10.0 py37h5e291fa_0 defaults hdf5 1.10.4 h7ebc959_0 defaults heapdict 1.0.1 py_0 defaults html5lib 1.0.1 py37_0 defaults hypothesis 5.5.4 py_0 defaults icc_rt 2019.0.0 h0cc432a_1 defaults icu 58.2 ha66f8fd_1 defaults idna 2.8 py37_0 defaults imageio 2.6.1 py37_0 defaults imagesize 1.2.0 py_0 defaults importlib_metadata 1.5.0 py37_0 defaults intel-openmp 2020.0 166 defaults intervaltree 3.0.2 py_0 defaults ipykernel 5.1.4 py37h39e3cac_0 defaults ipython 7.12.0 py37h5ca1d4c_0 defaults ipython_genutils 0.2.0 py37_0 defaults ipywidgets 7.5.1 py_0 defaults isort 4.3.21 py37_0 defaults itsdangerous 1.1.0 py37_0 defaults jdcal 1.4.1 py_0 defaults jedi 0.14.1 py37_0 defaults jinja2 2.11.1 py_0 defaults joblib 0.14.1 py_0 defaults jpeg 9b hb83a4c4_2 defaults json5 0.9.1 py_0 defaults jsonschema 3.2.0 py37_0 defaults jupyter 1.0.0 py37_7 defaults jupyter_client 5.3.4 py37_0 defaults jupyter_console 6.1.0 py_0 defaults jupyter_core 4.6.1 py37_0 defaults jupyterlab 1.2.6 pyhf63ae98_0 defaults jupyterlab_server 1.0.6 py_0 defaults keyring 21.1.0 py37_0 defaults kiwisolver 1.1.0 py37ha925a31_0 defaults krb5 1.17.1 hc04afaa_0 defaults lazy-object-proxy 1.4.3 py37he774522_0 defaults libarchive 3.3.3 h0643e63_5 defaults libcurl 7.68.0 h2a8f88b_0 defaults libiconv 1.15 h1df5818_7 defaults liblief 0.9.0 ha925a31_2 defaults libpng 1.6.37 h2a8f88b_0 defaults libsodium 1.0.16 h9d3ae62_0 defaults libspatialindex 1.9.3 h33f27b4_0 defaults libssh2 1.8.2 h7a1dbc1_0 defaults libtiff 4.1.0 h56a325e_0 defaults libxml2 2.9.9 h464c3ec_0 defaults libxslt 1.1.33 h579f668_0 defaults llvmlite 0.31.0 py37ha925a31_0 defaults locket 0.2.0 py37_1 defaults lxml 4.5.0 py37h1350720_0 defaults lz4-c 1.8.1.2 h2fa13f4_0 defaults lzo 2.10 h6df0209_2 defaults 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 py37he774522_0 defaults matplotlib 3.1.3 py37_0 defaults matplotlib-base 3.1.3 py37h64f37c6_0 defaults mccabe 0.6.1 py37_1 defaults menuinst 1.4.16 py37he774522_0 defaults mistune 0.8.4 py37he774522_0 defaults mkl 2020.0 166 defaults mkl-service 2.3.0 py37hb782905_0 defaults mkl_fft 1.0.15 py37h14836fe_0 defaults mkl_random 1.1.0 py37h675688f_0 defaults mock 4.0.1 py_0 defaults more-itertools 8.2.0 py_0 defaults mpmath 1.1.0 py37_0 defaults msgpack-python 0.6.1 py37h74a9793_1 defaults msys2-conda-epoch 20160418 1 defaults multipledispatch 0.6.0 py37_0 defaults navigator-updater 0.2.1 py37_0 defaults nbconvert 5.6.1 py37_0 defaults nbformat 5.0.4 py_0 defaults networkx 2.4 py_0 defaults nltk 3.4.5 py37_0 defaults nose 1.3.7 py37_2 defaults notebook 6.0.3 py37_0 defaults numba 0.48.0 py37h47e9c7a_0 defaults numexpr 2.7.1 py37h25d0782_0 defaults numpy 1.18.1 py37h93ca92e_0 defaults numpy-base 1.18.1 py37hc3f5095_1 defaults numpydoc 0.9.2 py_0 defaults olefile 0.46 py37_0 defaults openpyxl 3.0.3 py_0 defaults openssl 1.1.1d he774522_4 defaults packaging 20.1 py_0 defaults pandas 1.0.1 py37h47e9c7a_0 defaults pandoc 2.2.3.2 0 defaults pandocfilters 1.4.2 py37_1 defaults paramiko 2.7.1 py_0 defaults parso 0.5.2 py_0 defaults partd 1.1.0 py_0 defaults path 13.1.0 py37_0 defaults path.py 12.4.0 0 defaults pathlib2 2.3.5 py37_0 defaults pathtools 0.1.2 py_1 defaults patsy 0.5.1 py37_0 defaults pep8 1.7.1 py37_0 defaults pexpect 4.8.0 py37_0 defaults pickleshare 0.7.5 py37_0 defaults pillow 7.0.0 py37hcc1f983_0 defaults pip 20.0.2 py37_1 defaults pkginfo 1.5.0.1 py37_0 defaults pluggy 0.13.1 py37_0 defaults ply 3.11 py37_0 defaults powershell_shortcut 0.0.1 3 defaults prometheus_client 0.7.1 py_0 defaults prompt_toolkit 3.0.3 py_0 defaults psutil 5.6.7 py37he774522_0 defaults py 1.8.1 py_0 defaults py-lief 0.9.0 py37ha925a31_2 defaults pycodestyle 2.5.0 py37_0 defaults pycosat 0.6.3 py37he774522_0 defaults pycparser 2.19 py37_0 defaults pycrypto 2.6.1 py37hfa6e2cd_9 defaults pycurl 7.43.0.5 py37h7a1dbc1_0 defaults pydocstyle 4.0.1 py_0 defaults pyflakes 2.1.1 py37_0 defaults pygments 2.5.2 py_0 defaults pylint 2.4.4 py37_0 defaults pynacl 1.3.0 py37h62dcd97_0 defaults pyodbc 4.0.30 py37ha925a31_0 defaults pyopenssl 19.1.0 py37_0 defaults pyparsing 2.4.6 py_0 defaults pyqt 5.9.2 py37h6538335_2 defaults pyreadline 2.1 py37_1 defaults pyrsistent 0.15.7 py37he774522_0 defaults pysocks 1.7.1 py37_0 defaults pytables 3.6.1 py37h1da0976_0 defaults pytest 5.3.5 py37_0 defaults pytest-arraydiff 0.3 py37h39e3cac_0 defaults pytest-astropy 0.8.0 py_0 defaults pytest-astropy-header 0.1.2 py_0 defaults pytest-doctestplus 0.5.0 py_0 defaults pytest-openfiles 0.4.0 py_0 defaults pytest-remotedata 0.3.2 py37_0 defaults python 3.7.6 h60c2a47_2 defaults python-dateutil 2.8.1 py_0 defaults python-jsonrpc-server 0.3.4 py_0 defaults python-language-server 0.31.7 py37_0 defaults python-libarchive-c 2.8 py37_13 defaults pytz 2019.3 py_0 defaults pywavelets 1.1.1 py37he774522_0 defaults pywin32 227 py37he774522_1 defaults pywin32-ctypes 0.2.0 py37_1000 defaults pywinpty 0.5.7 py37_0 defaults pyyaml 5.3 py37he774522_0 defaults pyzmq 18.1.1 py37ha925a31_0 defaults qdarkstyle 2.8 py_0 defaults qt 5.9.7 vc14h73c81de_0 defaults qtawesome 0.6.1 py_0 defaults qtconsole 4.6.0 py_1 defaults qtpy 1.9.0 py_0 defaults requests 2.22.0 py37_1 defaults rope 0.16.0 py_0 defaults rtree 0.9.3 py37h21ff451_0 defaults ruamel_yaml 0.15.87 py37he774522_0 defaults scikit-image 0.16.2 py37h47e9c7a_0 defaults scikit-learn 0.22.1 py37h6288b17_0 defaults scipy 1.4.1 py37h9439919_0 defaults seaborn 0.10.0 py_0 defaults send2trash 1.5.0 py37_0 defaults setuptools 45.2.0 py37_0 defaults simplegeneric 0.8.1 py37_2 defaults singledispatch 3.4.0.3 py37_0 defaults sip 4.19.8 py37h6538335_0 defaults six 1.14.0 py37_0 defaults snappy 1.1.7 h777316e_3 defaults snowballstemmer 2.0.0 py_0 defaults sortedcollections 1.1.2 py37_0 defaults sortedcontainers 2.1.0 py37_0 defaults soupsieve 1.9.5 py37_0 defaults sphinx 2.4.0 py_0 defaults sphinxcontrib 1.0 py37_1 defaults sphinxcontrib-applehelp 1.0.1 py_0 defaults sphinxcontrib-devhelp 1.0.1 py_0 defaults sphinxcontrib-htmlhelp 1.0.2 py_0 defaults sphinxcontrib-jsmath 1.0.1 py_0 defaults sphinxcontrib-qthelp 1.0.2 py_0 defaults sphinxcontrib-serializinghtml 1.1.3 py_0 defaults sphinxcontrib-websupport 1.2.0 py_0 defaults spyder 4.0.1 py37_0 defaults spyder-kernels 1.8.1 py37_0 defaults sqlalchemy 1.3.13 py37he774522_0 defaults sqlite 3.31.1 he774522_0 defaults statsmodels 0.11.0 py37he774522_0 defaults sympy 1.5.1 py37_0 defaults tbb 2020.0 h74a9793_0 defaults tblib 1.6.0 py_0 defaults terminado 0.8.3 py37_0 defaults testpath 0.4.4 py_0 defaults tk 8.6.8 hfa6e2cd_0 defaults toolz 0.10.0 py_0 defaults tornado 6.0.3 py37he774522_3 defaults tqdm 4.42.1 py_0 defaults traitlets 4.3.3 py37_0 defaults ujson 1.35 py37hfa6e2cd_0 defaults unicodecsv 0.14.1 py37_0 defaults urllib3 1.25.8 py37_0 defaults vc 14.1 h0510ff6_4 defaults vs2015_runtime 14.16.27012 hf0eaf9b_1 defaults watchdog 0.10.2 py37_0 defaults wcwidth 0.1.8 py_0 defaults webencodings 0.5.1 py37_1 defaults werkzeug 1.0.0 py_0 defaults wheel 0.34.2 py37_0 defaults widgetsnbextension 3.5.1 py37_0 defaults win_inet_pton 1.1.0 py37_0 defaults win_unicode_console 0.5 py37_0 defaults wincertstore 0.2 py37_0 defaults winpty 0.4.3 4 defaults wrapt 1.11.2 py37he774522_0 defaults xlrd 1.2.0 py37_0 defaults xlsxwriter 1.2.7 py_0 defaults xlwings 0.17.1 py37_0 defaults xlwt 1.3.0 py37_0 defaults xmltodict 0.12.0 py_0 defaults xz 5.2.4 h2fa13f4_4 defaults yaml 0.1.7 hc54c509_2 defaults yapf 0.28.0 py_0 defaults zeromq 4.3.1 h33f27b4_3 defaults zict 1.0.0 py_0 defaults zipp 2.2.0 py_0 defaults zlib 1.2.11 h62dcd97_3 defaults zstd 1.3.7 h508b16e_0 defaults

[sreek011]

Additional information: With spyder command at anaconda prompt, the following error was reported:

(base) C:\Users\panicker>spyder Traceback (most recent call last): File "C:\Users\panicker\anaconda3\lib\site-packages\qtpy__init.py", line 204, in 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:\Users\panicker\anaconda3\Scripts\spyder-script.py", line 10, in sys.exit(main()) File "C:\Users\panicker\anaconda3\lib\site-packages\spyder\app\start.py", line 201, in main from spyder.app import mainwindow File "C:\Users\panicker\anaconda3\lib\site-packages\spyder\app\mainwindow.py", line 52, in requirements.check_qt() File "C:\Users\panicker\anaconda3\lib\site-packages\spyder\requirements.py", line 41, in check_qt import qtpy File "C:\Users\panicker\anaconda3\lib\site-packages\qtpy__init__.py", line 210, in raise PythonQtError('No Qt bindings could be found') qtpy.PythonQtError: No Qt bindings could be found

[sreek011]

Additional information:

Both Anaconda Navigator and Spyder works fine when run as administrator though the installation was done for user.

[ResearchLabDev]

Thank you for this additional information. Unfortunately, neither Navigator nor Spyder will run for me even when run as administrator. However, after updating I now return this error:

``` (base) C:\Users\Admin>spyder Traceback (most recent call last): File "C:\Users\Admin\anaconda3\Scripts\spyder-script.py", line 6, in from spyder.app.start import main File "C:\Users\Admin\anaconda3\lib\site-packages\spyder\app\start.py", line 22, in import zmq File "C:\Users\Admin\anaconda3\lib\site-packages\zmq\__init__.py", line 47, in from zmq import backend File "C:\Users\Admin\anaconda3\lib\site-packages\zmq\backend\__init__.py", line 40, in reraise(*exc_info) File "C:\Users\Admin\anaconda3\lib\site-packages\zmq\utils\sixcerpt.py", line 34, in reraise raise value File "C:\Users\Admin\anaconda3\lib\site-packages\zmq\backend\__init__.py", line 27, in _ns = select_backend(first) File "C:\Users\Admin\anaconda3\lib\site-packages\zmq\backend\select.py", line 28, in select_backend mod = __import__(name, fromlist=public_api) File "C:\Users\Admin\anaconda3\lib\site-packages\zmq\backend\cython\__init__.py", line 6, in from . import (constants, error, message, context, ImportError: DLL load failed: The specified module could not be found. ```

[sreek011]

My problem is resolved. I have the following to share. It may be useful:

A. Problem:

1. Anaconda-navigator and Spyder (may be other apps also, I didn't try) stopped working (they used to work without any issue before). System - Windows 10 64bit (Anaconda 2019.10)

2. Error message for spyder: (base) C:\Users\panicker>spyder

Traceback (most recent call last): File "C:\Users\panicker\anaconda3\lib\site-packages\qtpyinit.py", line 204, in 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:\Users\panicker\anaconda3\Scripts\spyder-script.py", line 10, in sys.exit(main()) File "C:\Users\panicker\anaconda3\lib\site-packages\spyder\app\start.py", line 201, in main from spyder.app import mainwindow File "C:\Users\panicker\anaconda3\lib\site-packages\spyder\app\mainwindow.py", line 52, in requirements.check_qt() File "C:\Users\panicker\anaconda3\lib\site-packages\spyder\requirements.py", line 41, in check_qt import qtpy File "C:\Users\panicker\anaconda3\lib\site-packages\qtpyinit.py", line 210, in raise PythonQtError('No Qt bindings could be found') qtpy.PythonQtError: No Qt bindings could be found

B. Probable reason for the problem: Installed PyQt5 by... pip install PyQt5

C. Attempts to fix the problem: Approach 1. a. Uninstalled anaconda (2019.10). (windows control panel, add remove programs, uninstall) b. Newer version, 2020.02 was available and hence downloaded the same and installed (installed with default/ recommended options)

z. Outcome - problem persisted, but able to launch both Anaconda Navigator and spyder in the admin mode.

Approach 2.

a. Uninstalled anaconda (2020.02) (windows control panel, add remove programs, uninstall) b. Old package 2019.10 installed. (installed with default/ recommended options) Outcome - problem persisted, but able to launch both Anaconda Navigator and spyder in the admin mode.

Approach 3. Did the following for clean uninstall as given in the anaconda documentation: a. > 'conda install anaconda-clean' (Anaconda prompt was working) b. > 'anaconda-clean --yes' c. Uninstall anaconda (windows control panel, add remove programs, uninstall) d. Entries (anaconda, spyder, python etc...) in windows registry removed e. Installed Newer version, 2020.02 (installed with default/ recommended options)

z. Outcome - problem persisted, but able to launch both Anaconda Navigator and spyder in the admin mode.

D. Approach 3 - Solution that worked:

a. > 'conda install anaconda-clean' (Anaconda prompt was working) b. > 'anaconda-clean --yes' c. Uninstalled anaconda (2020.02) (windows control panel, add remove programs, uninstall) d. Entries (anaconda, spyder, python etc...) in windows registry removed

e. Deleted files and folders persisting after uninstall. - Launch windows file explorer, go to root directory under which anaconda was installed ), In my case C: (windows) drive). Search with key words anaconda, python, spyder etc. Folders and files persisting after anaconda installation were listed in the search results. Delete all persisting files and folders

f. Installed Newer version, 2020.02 (installed with default/ recommended options)

z. Outcome - problem resolved.

[ResearchLabDev]

My problem has also been resolve with the latest update (using: conda update --all).

Thank you for the feedback.