Filter data frame using condition

Question

i have created a data frame like this:

d = {"one":[1,2,3],"two":[[["c",3],["a",4]],["b",5],["a",6]]}
pd.DataFrame(d)

My question is: how do i filter out a new data frame that column "two" contains only "a"

Answer 1

This should do it for you :

df.loc[df["two"].astype(str).str.contains("a")]