如果满足条件，则迭代槽行并获取当前且仅下一行 python

Question

 df_test = pd.DataFrame({'date':['2022-06-01', '2022-06-02', '2022-06-04', '2022-06-08'], 'sent':['true', 'true', 'false', 'true']}) date sent 0 2022-06-01 true 1 2022-06-02 true 2 2022-06-04 false 3 2022-06-08 true 4 2022-06-09 true 5 2022-06-10 false 6 2022-06-12 true 7 2022-06-14 true

i want to iterate trough this df and when sent == 'false' i want to save this and only the next following rows in a new df.

so i want two have a second df like this

 date sent 2 2022-06-04 false 3 2022-06-08 true 5 2022-06-10 false 6 2022-06-12 true

Answer 1

Try:

sent_false = (df_test['sent'] == 'false')

df_sent_false = df_test[sent_false | sent_false.shift(1)]
print(df_sent_false)

         date   sent
2  2022-06-04  false
3  2022-06-08   true

With resetting the index:

df_sent_false.reset_index(drop=True, inplace=True)

         date   sent
0  2022-06-04  false
1  2022-06-08   true