implement Logging module (was: Remaining issues in grid search)

[fabianp]

• use logger instead of print
• factorize common parts with libsvm's cross val

[fabianp]

assigned @GaelVaroquaux

[ogrisel]

You should have a look at this very interesting pycon talk by Doug Hellman for proper usage of the logging module:

• http://www.slideshare.net/doughellmann/hidden-treasures-of-the-python-standard-library
• http://pycon.blip.tv/file/4883162/
• https://bitbucket.org/dhellmann/hidden_stdlib/overview

[fabianp]

This issue was written during the last sprint, at least the cross val part is not relevant any more.

[amueller]

Should this issue be renamed "implement a logging module in sklearn?"

[ogrisel]

"logging" yes. And add a link to the matching pull request :)

[ogrisel]

Here it is: #130

[amueller]

Is issue #78 a duplicate of this now?

[larsmans]

Yes, duplicate of #78.