gets all current securities, open trades, investopedia quotes

[stellarore]

Added function to load all current securities from a portfolio, load all currently open trades, and get quotes from the investopedia site.

Running with python 3.6.1.

I started with @Scorpio1987 's fork which may have been the wrong decision. Sorry, it's my first time on Github.

[kirkthaker]

Thanks for the pull request! It looks mostly good, although I get the following error when I call get_open_trades:

open_trades = client.get_open_trades()
Traceback (most recent call last):
File "", line 1, in
File "/Users/kirkthaker/ita/investopedia-trading-api/investopedia.py", line 200, in get_open_trades
openTable = parsed_html.find('table', attrs={'class':'table1'}).text
AttributeError: 'NoneType' object has no attribute 'text'

I'll be working on bug fixes too, and we'll iron them out and merge your pull request. I agree that it's high time this project was Python 3 first, and not Python 2.

[kirkthaker]

^ The above error might happen because my portfolio is currently empty, although I need to double check that.

[kirkthaker]

I made a separate branch where we can make changes in isolation from master (paltryore-master)

[kirkthaker]

I made some fixes to your code and merged it. Thank you for the help - I really appreciate it!