Python to extract data from a file

Question

I am trying to extract the text between that has specific text file:

----
data1
data1
data1
extractme
----
data2
data2
data2
----
data3
data3
extractme
---         


        

Answer 1

For Python2

#!/usr/bin/env python

with open("infile.txt") as infile:
    with open("outfile.txt","w") as outfile:
        collector = []
        for line in infile:
            if line.startswith("----"):
                collector = []
            collector.append(line)
            if line.startswith("extractme"):
                for outline in collector:
                    outfile.write(outline)

For Python3

#!/usr/bin/env python3

with open("infile.txt") as infile, open("outfile.txt","w") as outfile:
    collector = []
    for line in infile:
        if line.startswith("----"):
            collector = []
        collector.append(line)
        if line.startswith("extractme"):
            for outline in collector:
                outfile.write(outline)