Insert a link inside a Pandas table

Question

I'd like to insert a link (to a web page) inside a Pandas table, so when it is displayed in an IPython notebook, I could press the link.

I tried the following:

In [1]: import pandas as pd  In [2]: df = pd.DataFrame(range(5), columns=['a'])  In [3]: df['b'] = df['a'].apply(lambda x: 'http://example.com/{0}'.format(x))  In [4]: df Out[4]:    a                     b 0  0  http://example.com/0 1  1  http://example.com/1 2  2  http://example.com/2 3  3  http://example.com/3 4  4  http://example.com/4 

But the URL is just displayed as text.

I also tried using an IPython HTML object:

In [5]: from IPython.display import HTML  In [6]: df['b'] = df['a'].apply(lambda x:HTML('http://example.com/{0}'.format(x)))  In [7]: df Out[7]:    a                                                 b 0  0  <IPython.core.display.HTML object at 0x0481E530> 1  1  <IPython.core.display.HTML object at 0x0481E770> 2  2  <IPython.core.display.HTML object at 0x0481E7B0> 3  3  <IPython.core.display.HTML object at 0x0481E810> 4  4  <IPython.core.display.HTML object at 0x0481EA70> 

But it will only display the repr of the object.

Any other ideas?

---

alko got the right answer. I just wanted to add that the cell width is limited by default, and long HTML code will be truncated, i.e.:

<a href="aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa0">xxx</a> 

will become this:

<a href="aaaaaaaaaaaaaaaaaaaaaa... 

and won't be displayed correctly. (Even though the text xxx is short and can fit in the cell.)

I've bypassed it by setting:

pd.set_printoptions(max_colwidth=-1) 

Answer 1

I suppose you have to represent whole Pandas object as an HTML object, that is

In [1]: from IPython.display import HTML  In [2]: df = pd.DataFrame(list(range(5)), columns=['a'])  In [3]: df['a'] = df['a'].apply(lambda x: '<a href="http://example.com/{0}">link</a>'.format(x))  In [4]: HTML(df.to_html(escape=False)) 

Sorry, now I don't have IPython at hand, and can't check whether the output is correct.