Incorrect close data from yahoo_finance in python
<p>I am using <a href="https://pypi.python.org/pypi/yahoo-finance">yahoo_finance</a> in python to pull stock data and for some reason, the <code>get_prev_close()</code> method is not returning the same data with every call.</p>

<p>Here is a simple example:</p>

<pre><code>from yahoo_finance import Share
from time import sleep

while True:
    stock = Share('XLV')
    prevClose = float(stock.get_prev_close())
    print prevClose

    sleep(1)
</code></pre>

<p>For some reason this will print two different numbers seemingly at random. So for today I am getting <code>69.3</code> and <code>69.71</code> printed out. But since this is yesterdays close data, there should only be a single value.</p>

<p>Is this is known bug and is there a way around this?</p>