Error on saving generated by Pygments lexers

[iurisegtovich]

Description

What steps will reproduce the problem?

just saving or trying to open a file

here is my conda list info

``` segtovichisv@segtovichisv-dell-luos1604:~$ conda list # packages in environment at /home/segtovichisv/anaconda3: # # Name Version Build Channel _license 1.1 py36_1 _nb_ext_conf 0.4.0 py36_1 alabaster 0.7.9 py36_0 anaconda custom py36hbbc8b67_0 anaconda-client 1.6.0 py36_0 anaconda-navigator 1.5.0 py36_0 anaconda-project 0.4.1 py36_0 assimulo 2.9 py36_5 conda-forge astroid 1.4.9 py36_0 astropy 1.3 np111py36_0 babel 2.3.4 py36_0 backcall 0.1.0 py36_0 backports 1.0 py36_0 beautifulsoup4 4.5.3 py36_0 bitarray 0.8.1 py36_0 blas 1.1 openblas conda-forge blaze 0.10.1 py36_0 bokeh 0.12.4 py36_0 boto 2.45.0 py36_0 bottleneck 1.2.0 np111py36_0 ca-certificates 2018.1.18 0 conda-forge cairo 1.14.12 h77bcde2_0 certifi 2018.8.13 py36_0 cffi 1.9.1 py36_0 chardet 2.3.0 py36_0 chest 0.2.3 py36_0 click 6.7 py36_0 cloudpickle 0.2.2 py36_0 clyent 1.2.2 py36_0 colorama 0.3.7 py36_0 conda 4.5.10 py36_0 conda-env 2.6.0 h36134e3_1 configobj 5.0.6 py36_0 contextlib2 0.5.4 py36_0 cryptography 1.7.1 py36_0 cssselect 1.0.3 curl 7.52.1 0 cycler 0.10.0 py36_0 Cython 0.25.2 cython 0.25.2 py36_0 cytoolz 0.8.2 py36_0 dask 0.13.0 py36_0 datashape 0.5.4 py36_0 dbus 1.10.22 h3b5a359_0 decorator 4.0.11 py36_0 dill 0.2.5 py36_0 docutils 0.13.1 py36_0 entrypoints 0.2.2 py36_0 et_xmlfile 1.0.1 py36_0 expat 2.1.0 0 fastcache 1.0.2 py36_1 flask 0.12 py36_0 flask-cors 3.0.2 py36_0 fontconfig 2.12.4 h88586e7_1 freetype 2.8 hab7d2ae_1 get_terminal_size 1.0.0 py36_0 gevent 1.2.1 py36_0 glib 2.53.6 h5d9569c_2 graphite2 1.3.10 hf63cedd_1 greenlet 0.4.11 py36_0 gst-plugins-base 1.12.4 h33fb286_0 gstreamer 1.12.4 hb53b477_0 h5py 2.6.0 np111py36_2 harfbuzz 1.7.4 hc5b324e_0 hdf5 1.8.17 1 heapdict 1.0.0 py36_1 icu 58.2 h9c2bf20_1 idna 2.2 py36_0 imagesize 0.7.1 py36_0 ipykernel 4.5.2 py36_0 ipython 6.4.0 py36_0 ipython_genutils 0.1.0 py36_0 ipywidgets 7.2.1 py36_0 isort 4.2.5 py36_0 itsdangerous 0.24 py36_0 jbig 2.1 0 jdcal 1.3 py36_0 jedi 0.12.0 py36_1 jeepney 0.3.1 py36_0 jinja2 2.9.4 py36_0 jpeg 9b 0 jsonschema 2.5.1 py36_0 jupyter 1.0.0 py36_3 jupyter_client 5.2.3 py36_0 jupyter_console 5.0.0 py36_0 jupyter_core 4.4.0 py36h7c827e3_0 keyring 13.2.1 py36_0 Kivy 1.10.0 Kivy-Garden 0.1.4 kiwisolver 1.0.1 py36h764f252_0 lazy-object-proxy 1.2.2 py36_0 libedit 3.1 heed3624_0 libffi 3.2.1 1 libgcc 4.8.5 2 libgcc-ng 7.2.0 hdf63c60_3 libgfortran 3.0.0 1 libiconv 1.14 0 libpng 1.6.34 hb9fc6fc_0 libsodium 1.0.10 0 libstdcxx-ng 7.2.0 hdf63c60_3 libtiff 4.0.9 h28f6b97_0 libxcb 1.12 1 libxml2 2.9.4 0 libxslt 1.1.29 0 llvmlite 0.15.0 py36_0 lml 0.0.1 locket 0.2.0 py36_1 lxml 3.7.2 py36_0 markupsafe 0.23 py36_2 matplotlib 2.2.2 py36h0e671d2_0 metis 5.1.0 3 conda-forge mistune 0.7.3 py36_0 mkl 2017.0.1 0 mkl-service 1.1.2 py36_3 mpmath 0.19 py36_1 multipledispatch 0.4.9 py36_0 nb_anacondacloud 1.4.0 py36_0 nb_conda 2.2.1 py36h8118bb2_0 nb_conda_kernels 2.1.0 py36_0 nbconvert 4.2.0 py36_0 nbformat 4.2.0 py36_0 nbpresent 3.0.2 py36h5f95a39_1 ncurses 6.0 h9df7e31_2 ndg-httpsclient 0.4.4 networkx 1.11 py36_0 nltk 3.2.2 py36_0 nose 1.3.7 py36_1 notebook 5.3.1 py36_0 numba 0.30.1 np111py36_0 numexpr 2.6.1 np111py36_2 numpy 1.11.3 py36_blas_openblas_202 [blas_openblas] conda-forge numpydoc 0.6.0 py36_0 odfpy 1.3.5 odo 0.5.0 py36_1 olefile 0.45.1 py36_0 openblas 0.2.19 2 conda-forge openpyxl 2.4.1 py36_0 openssl 1.0.2n 0 conda-forge pandas 0.19.2 np111py36_1 parso 0.2.0 py36_0 partd 0.3.7 py36_0 path.py 10.0 py36_0 pathlib2 2.2.0 py36_0 patsy 0.4.1 py36_0 pcre 8.39 1 pep8 1.7.0 py36_0 pexpect 4.2.1 py36_0 pickleshare 0.7.4 py36_0 pillow 5.0.0 py36h3deb7b8_0 pip 9.0.1 py36_1 pixman 0.34.0 0 ply 3.9 py36_0 prompt_toolkit 1.0.9 py36_0 psutil 5.0.1 py36_0 ptyprocess 0.5.1 py36_0 purl 1.3.1 py 1.4.22 py 1.4.32 py36_0 pyasn1 0.1.9 py36_0 pycodestyle 2.4.0 py36_0 pycosat 0.6.3 py36h0a5515d_0 pycparser 2.17 py36_0 pycrypto 2.6.1 py36_4 pycurl 7.43.0 py36_2 pyexcel 0.5.3 pyexcel-ezodf 0.3.3 pyexcel-io 0.5.1 pyexcel-ods 0.5.0 pyexcel-ods3 0.5.0 pyflakes 1.5.0 py36_0 pygments 2.1.3 py36_0 pylint 1.6.4 py36_1 pyopenssl 16.2.0 py36_0 pyparsing 2.1.4 py36_0 pyqt 5.6.0 py36_2 pytables 3.3.0 np111py36_0 pytest 3.0.5 py36_0 pytest 2.6.0 python 3.6.3 hc9025b9_1 python-base 1.1.8 python-dateutil 2.6.0 py36_0 pytz 2016.10 py36_0 pyyaml 3.12 py36_0 pyzmq 16.0.2 py36_0 qt 5.6.2 h974d657_12 qtawesome 0.4.3 py36_0 qtconsole 4.2.1 py36_1 qtpy 1.2.1 py36_0 readline 7.0 ha6073c6_4 redis 3.2.0 0 redis-py 2.10.5 py36_0 requests 2.12.4 py36_0 rope 0.9.4 py36_1 ruamel_yaml 0.11.14 py36_1 scikit-image 0.12.3 np111py36_1 scikit-learn 0.19.1 py36_blas_openblas_200 [blas_openblas] conda-forge scipy 0.19.1 py36_blas_openblas_202 [blas_openblas] conda-forge seaborn 0.7.1 py36_0 secretstorage 3.0.1 py36_0 send2trash 1.5.0 py36_0 setuptools 39.1.0 py36_0 setuptools 38.2.4 simplegeneric 0.8.1 py36_1 singledispatch 3.4.0.3 py36_0 sip 4.18 py36_0 six 1.10.0 py36_0 snowballstemmer 1.2.1 py36_0 sockjs-tornado 1.0.3 py36_0 Sphinx 1.5.6 sphinx 1.5.1 py36_0 sphinxcontrib-images 0.7.0 spyder 3.3.1 py36_1 spyder-kernels 0.2.4 py36_0 sqlalchemy 1.1.5 py36_0 sqlite 3.22.0 h1bed415_0 statsmodels 0.6.1 np111py36_1 suitesparse 4.5.4 blas_openblas_200 [blas_openblas] conda-forge sundials 2.7.0 blas_openblas_3 [blas_openblas] conda-forge sympy 1.0 py36_0 tbb 2018_20171205 0 conda-forge terminado 0.6 py36_0 texttable 0.9.1 tk 8.6.7 hc745277_3 toolz 0.8.2 py36_0 tornado 4.4.2 py36_0 traitlets 4.3.1 py36_0 unicodecsv 0.14.1 py36_0 uno 0.3.3 unotools 0.3.3 virtualenv 15.1.0 wcwidth 0.1.7 py36_0 werkzeug 0.11.15 py36_0 wheel 0.29.0 py36_0 widgetsnbextension 3.2.1 py36_0 wrapt 1.10.8 py36_0 xlrd 1.0.0 py36_0 xlsxwriter 0.9.6 py36_0 xlwt 1.2.0 py36_0 xz 5.2.3 h55aa19d_2 yaml 0.1.6 0 zeromq 4.1.5 0 zlib 1.2.11 ha838bed_2 ```

Traceback

  File "/home/segtovichisv/anaconda3/lib/python3.6/site-packages/spyder/plugins/editor.py", line 2018, in save
    return editorstack.save(index=index, force=force)
  File "/home/segtovichisv/anaconda3/lib/python3.6/site-packages/spyder/widgets/editor.py", line 1588, in save
    return self.save_as(index=index)
  File "/home/segtovichisv/anaconda3/lib/python3.6/site-packages/spyder/widgets/editor.py", line 1719, in save_as
    filename = self.select_savename(original_filename)
  File "/home/segtovichisv/anaconda3/lib/python3.6/site-packages/spyder/widgets/editor.py", line 1664, in select_savename
    self.edit_filetypes = get_edit_filetypes()
  File "/home/segtovichisv/anaconda3/lib/python3.6/site-packages/spyder/config/utils.py", line 125, in get_edit_filetypes
    supported_exts = _get_pygments_extensions()
  File "/home/segtovichisv/anaconda3/lib/python3.6/site-packages/spyder/config/utils.py", line 87, in _get_pygments_extensions
    for lx in lexers.get_all_lexers():
  File "/home/segtovichisv/anaconda3/lib/python3.6/site-packages/pygments/lexers/__init__.py", line 53, in get_all_lexers
    for lexer in find_plugin_lexers():
  File "/home/segtovichisv/anaconda3/lib/python3.6/site-packages/pygments/plugin.py", line 53, in find_plugin_lexers
    yield entrypoint.load()
  File "/home/segtovichisv/anaconda3/lib/python3.6/site-packages/pkg_resources/__init__.py", line 2321, in load
    self.require(*args, **kwargs)
  File "/home/segtovichisv/anaconda3/lib/python3.6/site-packages/pkg_resources/__init__.py", line 2344, in require
    items = working_set.resolve(reqs, env, installer, extras=self.extras)
  File "/home/segtovichisv/anaconda3/lib/python3.6/site-packages/pkg_resources/__init__.py", line 783, in resolve
    raise VersionConflict(dist, req).with_context(dependent_req)
pkg_resources.VersionConflict: (prompt-toolkit 1.0.9 (/home/segtovichisv/anaconda3/lib/python3.6/site-packages), Requirement.parse('prompt-toolkit<2.0.0,>=1.0.15'))

Versions

• Spyder version: 3.3.1
• Python version: 3.6.3
• Qt version: 5.6.2
• PyQt5 version: 5.6
• Operating System: Linux 4.4.0-131-generic

Dependencies

pyflakes >=0.6.0  :  1.5.0 (OK)
pycodestyle >=2.3 :  2.4.0 (OK)
pygments >=2.0    :  2.1.3 (OK)
sphinx >=0.6.6    :  1.5.6 (OK)
rope >=0.9.4      :  0.9.4-1 (OK)
jedi >=0.9.0      :  0.12.0 (OK)
psutil >=0.3      :  5.0.1 (OK)
nbconvert >=4.0   :  4.2.0 (OK)
pandas >=0.13.1   :  0.19.2 (OK)
numpy >=1.7       :  1.11.3 (OK)
sympy >=0.7.3     :  1.0 (OK)
cython >=0.21     :  0.25.2 (OK)
qtconsole >=4.2.0 :  4.2.1 (OK)
IPython >=4.0     :  6.4.0 (OK)
matplotlib >=2.0.0:  2.2.2 (OK)
pylint >=0.25     :  1.6.4 (OK)

[iurisegtovich]

manually solved making a conda update prompt_toolkit

[ccordoba12]

Thanks for reporting. We'll fix this in our next release.