python - KeyError in Pandas when passing concatenated string as key -


i have dataframe 'df' has column 'call_id' 1 of values '888'. have following variables:

c = 'call_id' v = '888' q = 'df[c] == v'

df[df[c] == v] working fine. however, df[q] giving me key error. suggestions ?

df[q] looking column named 'df[c] == v'. not equivalent df[c] == v, since first thing string , second thing python expression.


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