Latest version of parso 0.8 crashes Spyder 3.3.1 with python 3.5

Issue Report Checklist

• Searched the issues page for similar reports
• [] Read the relevant sections of the Spyder Troubleshooting Guide and followed its advice
• Reproduced the issue after updating with conda update spyder (or pip, if not using Anaconda)
• Could not reproduce inside jupyter qtconsole (if console-related)
• Tried basic troubleshooting (if a bug/error)
  • Restarted Spyder
  • Reset preferences with spyder --reset
  • Reinstalled the latest version of Anaconda
  • Tried the other applicable steps from the Troubleshooting Guide
• Completed the Problem Description, Steps to Reproduce and Version sections below

Problem Description

Latest version of parso version 0.8.0 causes Spyder 3.3.1 to not start with Python 3.5

What steps reproduce the problem?

conda create -n spyder_test python=3.5 spyder 
conda activate spyder_test
spyder &

What is the expected output? What do you see instead?

Spyder should startup successfully instead it crashes.

Paste Traceback/Error Below (if applicable)

  File "/home/vik748/miniconda3/envs/spyder_test/lib/python3.5/site-packages/spyder/app/mainwindow.py", line 3181, in main
    mainwindow = run_spyder(app, options, args)
  File "/home/vik748/miniconda3/envs/spyder_test/lib/python3.5/site-packages/spyder/app/mainwindow.py", line 3057, in run_spyder
    main.setup()
  File "/home/vik748/miniconda3/envs/spyder_test/lib/python3.5/site-packages/spyder/app/mainwindow.py", line 896, in setup
    from spyder.plugins.ipythonconsole import IPythonConsole
  File "/home/vik748/miniconda3/envs/spyder_test/lib/python3.5/site-packages/spyder/plugins/ipythonconsole.py", line 59, in <module>
    from spyder.widgets.ipythonconsole import ClientWidget
  File "/home/vik748/miniconda3/envs/spyder_test/lib/python3.5/site-packages/spyder/widgets/ipythonconsole/__init__.py", line 12, in <module>
    from .debugging import DebuggingWidget
  File "/home/vik748/miniconda3/envs/spyder_test/lib/python3.5/site-packages/spyder/widgets/ipythonconsole/debugging.py", line 17, in <module>
    from qtconsole.rich_jupyter_widget import RichJupyterWidget
  File "/home/vik748/miniconda3/envs/spyder_test/lib/python3.5/site-packages/qtconsole/rich_jupyter_widget.py", line 14, in <module>
    from .jupyter_widget import JupyterWidget
  File "/home/vik748/miniconda3/envs/spyder_test/lib/python3.5/site-packages/qtconsole/jupyter_widget.py", line 20, in <module>
    from IPython.lib.lexers import IPythonLexer, IPython3Lexer
  File "/home/vik748/miniconda3/envs/spyder_test/lib/python3.5/site-packages/IPython/__init__.py", line 55, in <module>
    from .terminal.embed import embed
  File "/home/vik748/miniconda3/envs/spyder_test/lib/python3.5/site-packages/IPython/terminal/embed.py", line 16, in <module>
    from IPython.terminal.interactiveshell import TerminalInteractiveShell
  File "/home/vik748/miniconda3/envs/spyder_test/lib/python3.5/site-packages/IPython/terminal/interactiveshell.py", line 32, in <module>
    from .debugger import TerminalPdb, Pdb
  File "/home/vik748/miniconda3/envs/spyder_test/lib/python3.5/site-packages/IPython/terminal/debugger.py", line 6, in <module>
    from IPython.core.completer import IPCompleter
  File "/home/vik748/miniconda3/envs/spyder_test/lib/python3.5/site-packages/IPython/core/completer.py", line 146, in <module>
    import jedi
  File "/home/vik748/miniconda3/envs/spyder_test/lib/python3.5/site-packages/jedi/__init__.py", line 41, in <module>
    from jedi.api import Script, Interpreter, set_debug_function, \
  File "/home/vik748/miniconda3/envs/spyder_test/lib/python3.5/site-packages/jedi/api/__init__.py", line 15, in <module>
    import parso
  File "/home/vik748/miniconda3/envs/spyder_test/lib/python3.5/site-packages/parso/__init__.py", line 41, in <module>
    from parso.parser import ParserSyntaxError
  File "/home/vik748/miniconda3/envs/spyder_test/lib/python3.5/site-packages/parso/parser.py", line 113
    node_map: Dict[str, type] = {}
            ^
SyntaxError: invalid syntax

Versions

• Spyder version: 3.3.1
• Python version: 3.5.6
• Qt version: 5.9.6
• PyQt version: 5.9.2
• Operating System name/version: Ubuntu 16.04
• Parso version: 0.8.0

Workaround

Using parso 0.7 works:

conda create -n spyder_test python=3.5 spyder parso=0.7
conda activate spyder_test
spyder &

[vik748]

@rhkarls That is a valid point, I will also add an issue in their repo.

[ccordoba12]

This is fixed now.