FIX: extend access to quotechar param in DataFrame.to_csv

[patricktokeeffe]

Existing pandas.core.format.CSVFormatter param quotechar can now be
specified as keyword arg to DataFrame.to_csv

[patricktokeeffe]

Do I need to worry about creating test(s) for this since it's passing through to an existing parameter of pandas.core.format.CSVFormatter?

[patricktokeeffe]

Yikes. Travis says it broke. I follow the failed test listed in the traceback (test_get_components_dax in pandas.io.tests.test_data.TestYahoo) through to the assert statement, including downloading the target file manually. If it's the same file I retrieved, the assert should succeed. I don't see to_csv calls anywhere so I'm at a loss so far as to what's wrong here.

[jreback]

you can force travis to rebuild that particular test (I saw that fail yesterday too...weird...but seems ok...so maybe a flaky test)

you should model some tests like other quoting type characters (prob in test_format.py or io/tests/test_parser.py).

yes write to a temp handle, then read back in and compare

[jtratner]

It def requires a bit of care, for some reason that part is fragile

[jreback]

does this have an associated issue?

[patricktokeeffe]

Most probably not--I did not file one.

[patricktokeeffe]

Closing, see #5414 sorry for the noise.