In Python, how I do either open tar.gz using for loopand retrieve .data file? Or just open the .data file and copy the contents to a list.

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In python, I have a folder with many tar.gz files. I want to be able to get to one .data file in each tar.gz file and collect a line of data. How do I loop a folder and read contents in a file like this.

list =["C:\\user\\desktop\\test_folder\\arch126.tar\\arch126.tar.dir\\ter126.data","gz:r","C:\\user\\desktop\\test_folder\\arch127.tar\\arch127.tar.dir\\ter126.data","gz:r"]
for i in list:
open(i) as f:
print(f.read())

FileNotFoundError [Errno 2] No such file or directory :

"C:\\user\\desktop\\test_folder\\arch126.tar\\arch126.tar.dir\\ter126.data"

What I have tried:

tar = tarfile.open("C:\\user\\desktop\\test_folder\\arch126.tar\\arch126.tar.dir\\ter126.data")
for member in tar.getmembers():
   F = tar.extractfile(member)
   if F is not None:
       content = f.read()

<pre>
    import tarfile
    import os
    for i in os.listdir(r'C:\users\test_folder'):
       str = r'C:\users\test_folder'
       str1 = str1 + '\\' + i
       if str1.endwith(".tar.gz"):
          tar = tarfile.open(str1,"r:*")
          for member in tar:
             f = tar.extractfile(member)