Python Recipe Read Empty Dataset
![tmgiang](https://us.v-cdn.net/6038231/uploads/Dataiku/nAvatar1.png)
tmgiang
Registered Posts: 15 ✭✭✭✭
I create a recipe by Python to read data from postgres database. To avoid read old data many times, I create a history table and store like dataset. So in the code I read the history before run the query.
run_history = dataiku.Dataset("history_run_working_details")
run_history_df = run_history.get_dataframe()
The problem that the history is empty in the first running. How can I handle this exception? (currently I temporary upload a history csv file before run the first time)
Answers
-
Hi,
Maybe you can find a method on the dataiku.Dataset() class that can help you?
https://doc.dataiku.com/dss/latest/api/python/datasets.html -
I was looking in that pages before ask the question here
. The problem can not solve because dataiku.Dataset() does not return empty set
I deal with this issue by using try-catch