Pandas Equivalent of R's which()

Question

Variations of this question have been asked before, I\'m still having trouble understanding how to actually slice a python series/pandas dataframe based on conditions that

Answer 1

Instead of enumerate, I usually just use .iteritems. This saves a .index(). Namely,

[k for k, v in (df['c'] > t).iteritems() if v]

Otherwise, one has to do

df[df['c'] > t].index()

This duplicates the typing of the data frame name, which can be very long and painful to type.