如何在从特定值开始的for循环中使用枚举function？

Question

I want this code to cycle through the entire dataset and to be performed each time 'CAFE' is in a line. Currently, it only occurs for the first appearance of CAFE. In other words, I want to specify the start of the enumerate function as the line with CAFE in it, but I am unable to put an argument of start = 'CAFE' inside the enumerate function because the string 'CAFE' cannot be interpreted as an integer.

with open('data.txt', 'r') as dataset:
    for line in dataset:
        if 'CAFE' in line:
            for i, lt in enumerate(dataset):
                if i > 1 and i < 130 and i %2 == 0:
                   lt_1 = int(lt, 16)
                   lt_2 = float(str(lt_1))
                   print(lt_2)
             else:
                pass
        else:
            pass 

Answer 1

Well enumerate(iterable[,start=integer]) takes .netger as start not string and It will be helpful if you provide data.txt

enumerate is equivalent to:

def enumerate(sequence, start=0):
    n = start
    for elem in sequence:
        yield n, elem
        n += 1

from python docs