matplotlib/matplotlib — pull request #2077 by rblomberg (2013-05-29 04:08:33+00:00)
Title: changed URL to the current CSV API for yahoo finance

I noticed a example on clustering was not working in scikit-learn and tracked it back to a yahoo CSV api url in finance.py of matplotlib being out of date. I looked around yahoo's documentation and it appears that their base url has changed to

http://table.finance.yahoo.com/table.csv

to

http://ichart.yahoo.com/table.csv