add check for infinity in __call__ of EngFormatter

[swfiua]

EngFormatter throws an exception if passed 'inf' as below.

This patch checks for infinity and just returns 'inf' in that case. The fix is analagous to the recent fix for NaN:

d0734ba

import pandas
import pandas.core.format as fmt

ef = fmt.EngFormatter()
ef(pandas.np.inf)

...

---

OverflowError Traceback (most recent call last)
in ()
3
4 ef = fmt.EngFormatter()
----> 5 ef(pandas.np.inf)

/usr/lib/python3/dist-packages/pandas/core/format.py in call(self, num)
2485
2486 if dnum != 0:
-> 2487 pow10 = decimal.Decimal(int(math.floor(dnum.log10() / 3) * 3))
2488 else:
2489 pow10 = decimal.Decimal(0)

OverflowError: cannot convert Infinity to integer

[jreback]

tests pls

[codecov-io]

Current coverage is 85.23% (diff: 50.00%)

Merging #14214 into master will increase coverage by <.01%

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+ Hits          43102      43104     +2   
  Misses         7464       7464          
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Powered by Codecov. Last update f363236...83f4091

[jreback]

thanks!

[swfiua]

A pleasure. Pandas is magic.

On 13 Sep 2016 19:00, "Jeff Reback" [email protected] wrote:

thanks!

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