Python Error: IPython.display import Markdown as display

Question

I am trying to use the pydna module on a machine running Ubuntu 14.04, and am getting the following error when I try to import it:

  File "<stdin>", line 1, in <module>
  File "/usr/local/lib/python2.7/dist-packages/pydna/__init__.py", line 97, in <module>
    from pydna.amplify                                  import Anneal
  File "/usr/local/lib/python2.7/dist-packages/pydna/amplify.py", line 32, in <module>
    from pydna.dsdna                    import rc
  File "/usr/local/lib/python2.7/dist-packages/pydna/dsdna.py", line 63, in <module>
    from IPython.display import Markdown as display
ImportError: cannot import name Markdown

Has anyone found a way to resolve this? I have tried reinstalling IPython, and pydna. The offending chunk in dsdna.py is the following: (lines 58-63)

try:
    import IPython
except ImportError:
    def display(item): return item
else:
    from IPython.display import Markdown as display

Any help would be greatly appreciated!

(Python 2.7.6)

Is markdown installed? pip install markdown or so?

Framester
– Framester

2016-03-08 15:53:13 +00:00
Commented Mar 8, 2016 at 15:53 — Framester
– Framester, Commented Mar 8, 2016 at 15:53

Björn Johansson · Accepted Answer · 2016-03-08 16:19:14Z

1

I have the IPython 4.1.1 installed and it works for me (see below). Which version do you have? Also, which pydna version did you install?

This could be due to a too old version of IPython, recently IPython was split into IPython and Jupyter which caused some code to break.

(bjorn)bjorn@bjorn-ThinkPad-T450s:~/Desktop/GMB$ python
Python 2.7.10 |Anaconda 2.5.0 (64-bit)| (default, Oct 19 2015, 18:04:42) 
[GCC 4.4.7 20120313 (Red Hat 4.4.7-1)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
Anaconda is brought to you by Continuum Analytics.
Please check out: http://continuum.io/thanks and https://anaconda.org
>>> from IPython.display import Markdown as display
>>> import IPython
>>> IPython.__version__
'4.1.1'

answered Mar 8, 2016 at 16:19

Björn Johansson

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1 Comment

NWaters Over a year ago

I had pydna1.0.0, and ipython1.4; updating ipython got things working, thanks so much!

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