better OpenExchangeRates error reporting

[rjmoggach]

Changing the base currency from USD to some other currency requires a paid account with OpenExchangeRates.

Currently the API returns an error that doesn't make this clear at first glance:

openexchangerates.OpenExchangeRatesClientException: 
403 Client Error: Forbidden for url: http://openexchangerates.org/
api/latest.json?app_id=xxxxxxxxxxxxxxx&base=GBP

Copying the request URL to another tab reveals the problem but this exception should be handled appropriately.

[racitup]

Should now be fixed on my fork which has completely restructured the management commands to integrate other sources. Yahoo Finance now integrated. Check it out!

I am just going to raise a pull request :-)

[bashu]

@racitup +1 for PR

[einarf]

@racitup @bashu I wonder if you might be better off just moving the actual openexchangerates module into this project. It seems to be abandoned and do not support python 3 because of this tiny bug that has a PR waiting for almost a year metglobal/openexchangerates#6

openexchangerates has an MIT license so that should not be a problem.

[panosl]

Show me the pull requests :)

[racitup]

See PR #43 :)