Question

I have a big text file and I would like to extract only numbers that are after certain phrases/words.

There are dozens lines in this huge text file in the following format:

Best CV Model for car: 15778 is order:2 threshold: 0 with AUC of :
0.7185 gene aau_roc: 0.466281

One solution is to just look at number after “for car: X”, “is order: X”, “threshold: X”, “Y gene aau_roc: X” !

At the end I would like to have 15778, 2, 0, 0.7185, 0.466281 for each line.

Answer 1

>>> if line.startswith('Best CV Model'):
...     re.findall(r'\d+\.{0,1}\d*', line)
... 
['15778', '2', '0', '0.7185', '0.466281']