quando o coloco :
confirmed.set_index("Country/Region").loc["US"].sum().tail()
aparece esse erro :
---------------------------------------------------------------------------
AttributeError Traceback (most recent call last)
<ipython-input-38-baeebe53155e> in <module>()
----> 1 confirmed.set_index("Country/Region").loc["US"].sum().tail()
AttributeError: 'numpy.float64' object has no attribute 'tail'