Install ipython error

[BakaYang]

• Pip version: 10.0.0b2
• Python version: 2.7
• Operating system: macOS High Sierra 10.13.1

I use pip install ipython

errors appear

matplotlib 1.3.1 requires nose, which is not installed. matplotlib 1.3.1 requires tornado, which is not installed. prompt-toolkit 1.0.15 has requirement six>=1.9.0, but you'll have six 1.4.1 which is incompatible. matplotlib 1.3.1 has requirement numpy>=1.5, but you'll have numpy 1.8.0rc1 which is incompatible.

[pradyunsg]

Hi @BakaYang!

These are warnings related to incompatible dependencies in your environment. pip is trying to help by printing them and telling you about them.

Two of those warnings are incorrect and fixed in pip 10.0.0 which was released yesterday.

[BakaYang]

I upgrade pip use python -m pip install --upgrade pip,but errors appear

[di]

Duplicate of #5196?

[JJJasmineLin]

Hi @pradyunsg
version upgraded,
pip 10.0.1 from /Library/Python/2.7/site-packages/pip-10.0.1-py2.7.egg/pip (python 2.7)
however, still got the same error as the original post. :'(

[chrahunt]

Hi @JJJasmineLin, the previous comment mentioned that only 2 of the error messages were fixed by 10.0.0. The remainder should have been fully addressed in 18.0 (by #5457). Please try it out and let us know if you have any issues.