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prompt-toolkit requirement conflict

See original GitHub issue

jupyter requires jupyter-console and ipykernel. jupyter-console==5.2.0 (the most recent) requires prompt-toolkit<2.0.0, but ipykernel==5.0.0 (the most recent) requires prompt-toolkit>=2.0.0. prompt-toolkit-1.0.15 ends up being installed, which results in

>python -c "import ipykernel"
Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "...\lib\site-packages\ipykernel\__init__.py", line 2, in <module>
    from .connect import *
  File "...\lib\site-packages\ipykernel\connect.py", line 13, in <module>
    from IPython.core.profiledir import ProfileDir
  File "...\lib\site-packages\IPython\__init__.py", line 55, in <module>
    from .terminal.embed import embed
  File "...\lib\site-packages\IPython\terminal\embed.py", line 16, in <module>
    from IPython.terminal.interactiveshell import TerminalInteractiveShell
  File "...\lib\site-packages\IPython\terminal\interactiveshell.py", line 20, in <module>
    from prompt_toolkit.formatted_text import PygmentsTokens
ImportError: No module named 'prompt_toolkit.formatted_text'

This occurs when doing pip install jupyter, in Python 3.5. It is triggered by the new release of ipykernel 5.0.0.

Issue Analytics

State:
Created 5 years ago
Reactions:30
Comments:10

Top GitHub Comments

57reactions

saubhikcommented, Oct 1, 2018

I had to do the following:

pip uninstall ipython pip install ipython==6.5.0

ipython==6.5.0 works with prompt-toolkit-1.0.15 which gets installed when you do pip install jupyter.

20reactions

raunaks13commented, Sep 30, 2018

The problem is with the recent ipykernel update. A temporary fix could be:

pip uninstall ipykernel pip install ipykernel==4.8.0

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