title: No module named 'matplotlib.artist'
body: <p>I faced with this error</p>
  
  <pre><code>No module named 'matplotlib.artist'
  </code></pre>
  
  <p>here is the complete error:</p>
  
  <pre><code>---------------------------------------------------------------------------
  ModuleNotFoundError                       Traceback (most recent call last)
  &lt;ipython-input-2-cf8446fccc06&gt; in &lt;module&gt;
        5 import numpy as np
        6 #import seaborn as sns
  ----&gt; 7 import matplotlib.pyplot as plt
        8 from warnings import filterwarnings
        9 filterwarnings('ignore')
  
  ~\AppData\Roaming\Python\Python37\site-packages\matplotlib\pyplot.py in &lt;module&gt;
       30 from cycler import cycler
       31 import matplotlib
  ---&gt; 32 import matplotlib.colorbar
       33 import matplotlib.image
       34 from matplotlib import rcsetup, style
  
  ~\AppData\Roaming\Python\Python37\site-packages\matplotlib\colorbar.py in &lt;module&gt;
       25 
       26 import matplotlib as mpl
  ---&gt; 27 import matplotlib.artist as martist
       28 import matplotlib.cbook as cbook
       29 import matplotlib.collections as collections
  
  ModuleNotFoundError: No module named 'matplotlib.artist'
  </code></pre>
  
  <p>from yesterday when I want to use </p>
  
  <pre><code>import matplotlib.pyplot as plt
  </code></pre>
  
  <p>or </p>
  
  <pre><code>import seaborn as sns
  </code></pre>
  
  <p>I am using  3.7.4, matplotlib 3.1.1,seaborn 0.9.0
  here is the full pip list </p>
  
  <pre><code>Package                            Version
  ---------------------------------- ---------
  -atplotlib                         3.1.1
  alabaster                          0.7.12
  anaconda-client                    1.7.2
  anaconda-navigator                 1.9.7
  anaconda-project                   0.8.3
  asn1crypto                         1.0.1
  astroid                            2.3.1
  astropy                            3.2.1
  atomicwrites                       1.3.0
  attrs                              19.2.0
  Babel                              2.7.0
  backcall                           0.1.0
  backports.functools-lru-cache      1.5
  backports.os                       0.1.1
  backports.shutil-get-terminal-size 1.0.0
  backports.tempfile                 1.0
  backports.weakref                  1.0.post1
  beautifulsoup4                     4.8.0
  bitarray                           1.0.1
  bkcharts                           0.2
  bleach                             3.1.0
  bokeh                              1.3.4
  boto                               2.49.0
  Bottleneck                         1.2.1
  certifi                            2019.9.11
  cffi                               1.12.3
  chardet                            3.0.4
  Click                              7.0
  cloudpickle                        1.2.2
  clyent                             1.2.2
  colorama                           0.4.1
  comtypes                           1.1.7
  conda                              4.7.12
  conda-build                        3.18.9
  conda-package-handling             1.6.0
  conda-verify                       3.4.2
  contextlib2                        0.6.0
  cryptography                       2.7
  cycler                             0.10.0
  Cython                             0.29.13
  cytoolz                            0.10.0
  dask                               2.5.2
  decorator                          4.4.0
  defusedxml                         0.6.0
  distributed                        2.5.2
  docutils                           0.15.2
  entrypoints                        0.3
  et-xmlfile                         1.0.1
  fastcache                          1.1.0
  filelock                           3.0.12
  Flask                              1.1.1
  fsspec                             0.5.2
  future                             0.17.1
  gevent                             1.4.0
  glob2                              0.7
  greenlet                           0.4.15
  h5py                               2.9.0
  HeapDict                           1.0.1
  html5lib                           1.0.1
  idna                               2.8
  imageio                            2.6.0
  imagesize                          1.1.0
  importlib-metadata                 0.23
  ipykernel                          5.1.2
  ipython                            7.8.0
  ipython-genutils                   0.2.0
  ipywidgets                         7.5.1
  isort                              4.3.21
  itsdangerous                       1.1.0
  jdcal                              1.4.1
  jedi                               0.15.1
  Jinja2                             2.10.3
  joblib                             0.13.2
  json5                              0.8.5
  jsonschema                         3.0.2
  jupyter                            1.0.0
  jupyter-client                     5.3.3
  jupyter-console                    6.0.0
  jupyter-core                       4.5.0
  jupyterlab                         1.1.4
  jupyterlab-server                  1.0.6
  keyring                            18.0.0
  kiwisolver                         1.1.0
  lazy-object-proxy                  1.4.2
  libarchive-c                       2.8
  llvmlite                           0.29.0
  locket                             0.2.0
  lxml                               4.4.1
  MarkupSafe                         1.1.1
  matplotlib                         3.1.1
  mccabe                             0.6.1
  menuinst                           1.4.16
  mistune                            0.8.4
  mkl-fft                            1.0.14
  mkl-random                         1.1.0
  mkl-service                        2.3.0
  mock                               3.0.5
  more-itertools                     7.2.0
  mpmath                             1.1.0
  msgpack                            0.6.1
  multipledispatch                   0.6.0
  navigator-updater                  0.2.1
  nbconvert                          5.6.0
  nbformat                           4.4.0
  networkx                           2.3
  nltk                               3.4.5
  nose                               1.3.7
  notebook                           6.0.1
  numba                              0.45.1
  numexpr                            2.7.0
  numpy                              1.16.5
  numpydoc                           0.9.1
  olefile                            0.46
  openpyxl                           3.0.0
  packaging                          19.2
  pandas                             0.25.1
  pandocfilters                      1.4.2
  parso                              0.5.1
  partd                              1.0.0
  path.py                            12.0.1
  pathlib2                           2.3.5
  patsy                              0.5.1
  pep8                               1.7.1
  pickleshare                        0.7.5
  Pillow                             6.2.0
  pip                                19.2.3
  pkginfo                            1.5.0.1
  pluggy                             0.13.0
  ply                                3.11
  progressbar2                       3.42.0
  prometheus-client                  0.7.1
  prompt-toolkit                     2.0.10
  psutil                             5.6.3
  py                                 1.8.0
  pycodestyle                        2.5.0
  pycosat                            0.6.3
  pycparser                          2.19
  pycrypto                           2.6.1
  pycurl                             7.43.0.3
  pyflakes                           2.1.1
  Pygments                           2.4.2
  pykg2vec                           0.0.48
  pylint                             2.4.2
  pyodbc                             4.0.27
  pyOpenSSL                          19.0.0
  pyparsing                          2.4.2
  pyreadline                         2.1
  pyrsistent                         0.15.4
  PySocks                            1.7.1
  pytest                             5.2.1
  pytest-arraydiff                   0.3
  pytest-astropy                     0.5.0
  pytest-doctestplus                 0.4.0
  pytest-openfiles                   0.4.0
  pytest-remotedata                  0.3.2
  python-dateutil                    2.8.0
  python-utils                       2.3.0
  pytz                               2019.3
  PyWavelets                         1.0.3
  pywin32                            223
  pywinpty                           0.5.5
  PyYAML                             5.1.2
  pyzmq                              18.1.0
  QtAwesome                          0.6.0
  qtconsole                          4.5.5
  QtPy                               1.9.0
  requests                           2.22.0
  rope                               0.14.0
  ruamel-yaml                        0.15.46
  scikit-image                       0.15.0
  scikit-learn                       0.21.3
  scipy                              1.3.1
  seaborn                            0.9.0
  Send2Trash                         1.5.0
  setuptools                         41.4.0
  simplegeneric                      0.8.1
  singledispatch                     3.4.0.3
  six                                1.12.0
  snowballstemmer                    2.0.0
  sortedcollections                  1.1.2
  sortedcontainers                   2.1.0
  soupsieve                          1.9.3
  Sphinx                             2.2.0
  sphinx-gallery                     0.4.0
  sphinx-rtd-theme                   0.4.3
  sphinxcontrib-applehelp            1.0.1
  sphinxcontrib-devhelp              1.0.1
  sphinxcontrib-htmlhelp             1.0.2
  sphinxcontrib-jsmath               1.0.1
  sphinxcontrib-qthelp               1.0.2
  sphinxcontrib-serializinghtml      1.1.3
  sphinxcontrib-websupport           1.1.2
  spyder                             3.3.6
  spyder-kernels                     0.5.2
  SQLAlchemy                         1.3.9
  statsmodels                        0.10.1
  sympy                              1.4
  tables                             3.5.2
  tblib                              1.4.0
  terminado                          0.8.2
  testpath                           0.4.2
  toolz                              0.10.0
  tornado                            6.0.3
  tqdm                               4.36.1
  traitlets                          4.3.3
  unicodecsv                         0.14.1
  urllib3                            1.24.2
  wcwidth                            0.1.7
  webencodings                       0.5.1
  Werkzeug                           0.16.0
  wheel                              0.33.6
  widgetsnbextension                 3.5.1
  win-inet-pton                      1.1.0
  win-unicode-console                0.5
  wincertstore                       0.2
  wrapt                              1.11.2
  xlrd                               1.2.0
  XlsxWriter                         1.2.1
  xlwings                            0.15.10
  xlwt                               1.3.0
  zict                               1.0.0
  zipp                               0.6.0
  </code></pre>
  
  <p>conda lsit gives me this: </p>
  
  <pre><code>_ipyw_jlab_nb_ext_conf    0.1.0                    py37_0
  alabaster                 0.7.12                   py37_0
  anaconda                  2019.10                  py37_0
  anaconda-client           1.7.2                    py37_0
  anaconda-navigator        1.9.7                    py37_0
  anaconda-project          0.8.3                      py_0
  asn1crypto                1.0.1                    py37_0
  astroid                   2.3.1                    py37_0
  astropy                   3.2.1            py37he774522_0
  atomicwrites              1.3.0                    py37_1
  attrs                     19.2.0                     py_0
  babel                     2.7.0                      py_0
  backcall                  0.1.0                    py37_0
  backports                 1.0                        py_2
  backports.functools_lru_cache 1.5                        py_2
  backports.os              0.1.1                    py37_0
  backports.shutil_get_terminal_size 1.0.0                    py37_2
  backports.tempfile        1.0                        py_1
  backports.weakref         1.0.post1                  py_1
  beautifulsoup4            4.8.0                    py37_0
  bitarray                  1.0.1            py37he774522_0
  bkcharts                  0.2                      py37_0
  blas                      1.0                         mkl
  bleach                    3.1.0                    py37_0
  blosc                     1.16.3               h7bd577a_0
  bokeh                     1.3.4                    py37_0
  boto                      2.49.0                   py37_0
  bottleneck                1.2.1            py37h452e1ab_1
  bzip2                     1.0.8                he774522_0
  ca-certificates           2019.8.28                     0
  certifi                   2019.9.11                py37_0
  cffi                      1.12.3           py37h7a1dbc1_0
  chardet                   3.0.4                 py37_1003
  click                     7.0                      py37_0
  cloudpickle               1.2.2                      py_0
  clyent                    1.2.2                    py37_1
  colorama                  0.4.1                    py37_0
  comtypes                  1.1.7                    py37_0
  conda                     4.7.12                   py37_0
  conda-build               3.18.9                   py37_3
  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                         3
  contextlib2               0.6.0                      py_0
  cryptography              2.7              py37h7a1dbc1_0
  curl                      7.65.3               h2a8f88b_0
  cycler                    0.10.0                   py37_0
  cython                    0.29.13          py37ha925a31_0
  cytoolz                   0.10.0           py37he774522_0
  dask                      2.5.2                      py_0
  dask-core                 2.5.2                      py_0
  decorator                 4.4.0                    py37_1
  defusedxml                0.6.0                      py_0
  distributed               2.5.2                      py_0
  docutils                  0.15.2                   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
  flask                     1.1.1                      py_0
  freetype                  2.9.1                ha9979f8_1
  fsspec                    0.5.2                      py_0
  future                    0.17.1                   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                      2.9.0            py37h5e291fa_0
  hdf5                      1.10.4               h7ebc959_0
  heapdict                  1.0.1                      py_0
  html5lib                  1.0.1                    py37_0
  icc_rt                    2019.0.0             h0cc432a_1
  icu                       58.2                 ha66f8fd_1
  idna                      2.8                      py37_0
  imageio                   2.6.0                    py37_0
  imagesize                 1.1.0                    py37_0
  importlib_metadata        0.23                     py37_0
  intel-openmp              2019.4                      245
  ipykernel                 5.1.2            py37h39e3cac_0
  ipython                   7.8.0            py37h39e3cac_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                      0.15.1                   py37_0
  jinja2                    2.10.3                     py_0
  joblib                    0.13.2                   py37_0
  jpeg                      9b                   hb83a4c4_2
  json5                     0.8.5                      py_0
  jsonschema                3.0.2                    py37_0
  jupyter                   1.0.0                    py37_7
  jupyter_client            5.3.3                    py37_1
  jupyter_console           6.0.0                    py37_0
  jupyter_core              4.5.0                      py_0
  jupyterlab                1.1.4              pyhf63ae98_0
  jupyterlab_server         1.0.6                      py_0
  keyring                   18.0.0                   py37_0
  kiwisolver                1.1.0            py37ha925a31_0
  krb5                      1.16.1               hc04afaa_7
  lazy-object-proxy         1.4.2            py37he774522_0
  libarchive                3.3.3                h0643e63_5
  libcurl                   7.65.3               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
  libssh2                   1.8.2                h7a1dbc1_0
  libtiff                   4.0.10               hb898794_2
  libxml2                   2.9.9                h464c3ec_0
  libxslt                   1.1.33               h579f668_0
  llvmlite                  0.29.0           py37ha925a31_0
  locket                    0.2.0                    py37_1
  lxml                      4.4.1            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                3.1.1            py37hc8f65d3_0
  mccabe                    0.6.1                    py37_1
  menuinst                  1.4.16           py37he774522_0
  mistune                   0.8.4            py37he774522_0
  mkl                       2019.4                      245
  mkl-service               2.3.0            py37hb782905_0
  mkl_fft                   1.0.14           py37h14836fe_0
  mkl_random                1.1.0            py37h675688f_0
  mock                      3.0.5                    py37_0
  more-itertools            7.2.0                    py37_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                 5.6.0                    py37_1
  nbformat                  4.4.0                    py37_0
  networkx                  2.3                        py_0
  nltk                      3.4.5                    py37_0
  nose                      1.3.7                    py37_2
  notebook                  6.0.1                    py37_0
  numba                     0.45.1           py37hf9181ef_0
  numexpr                   2.7.0            py37hdce8814_0
  numpy                     1.16.5           py37h19fb1c0_0
  numpy-base                1.16.5           py37hc3f5095_0
  numpydoc                  0.9.1                      py_0
  olefile                   0.46                     py37_0
  openpyxl                  3.0.0                      py_0
  openssl                   1.1.1d               he774522_2
  packaging                 19.2                       py_0
  pandas                    0.25.1           py37ha925a31_0
  pandoc                    2.2.3.2                       0
  pandocfilters             1.4.2                    py37_1
  parso                     0.5.1                      py_0
  partd                     1.0.0                      py_0
  path.py                   12.0.1                     py_0
  pathlib2                  2.3.5                    py37_0
  patsy                     0.5.1                    py37_0
  pep8                      1.7.1                    py37_0
  pickleshare               0.7.5                    py37_0
  pillow                    6.2.0            py37hdc69c19_0
  pip                       19.2.3                   py37_0
  pkginfo                   1.5.0.1                  py37_0
  pluggy                    0.13.0                   py37_0
  ply                       3.11                     py37_0
  powershell_shortcut       0.0.1                         2
  prometheus_client         0.7.1                      py_0
  prompt_toolkit            2.0.10                     py_0
  psutil                    5.6.3            py37he774522_0
  py                        1.8.0                    py37_0
  py-lief                   0.9.0            py37ha925a31_2
  pycodestyle               2.5.0                    py37_0
  pycosat                   0.6.3            py37hfa6e2cd_0
  pycparser                 2.19                     py37_0
  pycrypto                  2.6.1            py37hfa6e2cd_9
  pycurl                    7.43.0.3         py37h7a1dbc1_0
  pyflakes                  2.1.1                    py37_0
  pygments                  2.4.2                      py_0
  pylint                    2.4.2                    py37_0
  pyodbc                    4.0.27           py37ha925a31_0
  pyopenssl                 19.0.0                   py37_0
  pyparsing                 2.4.2                      py_0
  pyqt                      5.9.2            py37h6538335_2
  pyreadline                2.1                      py37_1
  pyrsistent                0.15.4           py37he774522_0
  pysocks                   1.7.1                    py37_0
  pytables                  3.5.2            py37h1da0976_1
  pytest                    5.2.1                    py37_0
  pytest-arraydiff          0.3              py37h39e3cac_0
  pytest-astropy            0.5.0                    py37_0
  pytest-doctestplus        0.4.0                      py_0
  pytest-openfiles          0.4.0                      py_0
  pytest-remotedata         0.3.2                    py37_0
  python                    3.7.4                h5263a28_0
  python-dateutil           2.8.0                    py37_0
  python-libarchive-c       2.8                     py37_13
  pytz                      2019.3                     py_0
  pywavelets                1.0.3            py37h8c2d366_1
  pywin32                   223              py37hfa6e2cd_1
  pywinpty                  0.5.5                 py37_1000
  pyyaml                    5.1.2            py37he774522_0
  pyzmq                     18.1.0           py37ha925a31_0
  qt                        5.9.7            vc14h73c81de_0
  qtawesome                 0.6.0                      py_0
  qtconsole                 4.5.5                      py_0
  qtpy                      1.9.0                      py_0
  requests                  2.22.0                   py37_0
  rope                      0.14.0                     py_0
  ruamel_yaml               0.15.46          py37hfa6e2cd_0
  scikit-image              0.15.0           py37ha925a31_0
  scikit-learn              0.21.3           py37h6288b17_0
  scipy                     1.3.1            py37h29ff71c_0
  seaborn                   0.9.0                    py37_0
  send2trash                1.5.0                    py37_0
  setuptools                41.4.0                   py37_0
  simplegeneric             0.8.1                    py37_2
  singledispatch            3.4.0.3                  py37_0
  sip                       4.19.8           py37h6538335_0
  six                       1.12.0                   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                 1.9.3                    py37_0
  sphinx                    2.2.0                      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  1.1.2                      py_0
  spyder                    3.3.6                    py37_0
  spyder-kernels            0.5.2                    py37_0
  sqlalchemy                1.3.9            py37he774522_0
  sqlite                    3.30.0               he774522_0
  statsmodels               0.10.1           py37h8c2d366_0
  sympy                     1.4                      py37_0
  tbb                       2019.4               h74a9793_0
  tblib                     1.4.0                      py_0
  terminado                 0.8.2                    py37_0
  testpath                  0.4.2                    py37_0
  tk                        8.6.8                hfa6e2cd_0
  toolz                     0.10.0                     py_0
  tornado                   6.0.3            py37he774522_0
  tqdm                      4.36.1                     py_0
  traitlets                 4.3.3                    py37_0
  unicodecsv                0.14.1                   py37_0
  urllib3                   1.24.2                   py37_0
  vc                        14.1                 h0510ff6_4
  vs2015_runtime            14.16.27012          hf0eaf9b_0
  wcwidth                   0.1.7                    py37_0
  webencodings              0.5.1                    py37_1
  werkzeug                  0.16.0                     py_0
  wheel                     0.33.6                   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                1.2.1                      py_0
  xlwings                   0.15.10                  py37_0
  xlwt                      1.3.0                    py37_0
  xz                        5.2.4                h2fa13f4_4
  yaml                      0.1.7                hc54c509_2
  zeromq                    4.3.1                h33f27b4_3
  zict                      1.0.0                      py_0
  zipp                      0.6.0                      py_0
  zlib                      1.2.11               h62dcd97_3
  zstd                      1.3.7                h508b16e_0
  </code></pre>
  
  <p>as you see there is something suspicious here in pip list:
  -atplotlib 
  I do not know what is that! it 
  looks like matplotlib without first letter m</p>
  
  <p>I have search a lot and did a lot of efforts based on this</p>
  
  <p><a href="https://stackoverflow.com/questions/54162173/getting-an-error-that-reads-modulenotfounderror-no-module-named-matplotlib-ar">Getting an error that reads: ModuleNotFoundError: No module named &#39;matplotlib.artist&#39;</a></p>
  
  <p><a href="https://github.com/matplotlib/matplotlib/issues/6771/" rel="nofollow noreferrer">https://github.com/matplotlib/matplotlib/issues/6771/</a></p>
  
  <p>like, reinstall matplotlib, reinstall anaconda ...</p>
  
  <p>but it does not work! In my view, it might be something related to the path, but I can not find the solution. </p>
  
  <p>I also uninstall my anaconda two times still have the problem!</p>
  
  <p>any suggestion would be appreciated</p>