How to extract certain string from a line of string using find.()

Question

file_name_to_preprocessing_method("heloc_dataset_v1(exc empty rows.).csv_pre(-1,asis).csv")

should return the string "(-1,asis)", possibly using .find() .

Answer 1

Using re.findall for a regex approach:

inp = "file_name_to_preprocessing_method(\"heloc_dataset_v1(exc empty rows.).csv_pre(-1,asis).csv\")"
matches = re.findall(r'\bcsv_pre(\(.*?\))', inp)
print(matches[0])  # (-1,asis)