Github user bzz commented on the issue:
https://github.com/apache/zeppelin/pull/1628
Tested with and without `matplotlib` - both cases work fine!
Also
```
%python
a = 'a'
print "{}".format(a)
```
works as expected as well!
ð thank you for prompt fix, looks awesome to me, will merge to master
as hotfix asap, if there is no further discussion
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