I have a file:"docs.tar.gz".The tar file has 4 files inside of which the fourth file is "docs.json" which is what I need.Im able to view the contents of the tar file using:
import tarfile
tar=tarfile.open("docs.tar.gz")
tar.getmembers()
How would I read the fourth file -the json file that I need?..Im unable to proceed after extracting the contents.Thanks!
Try this:
import tarfile
tar = tarfile.open("docs.tar.gz")
f = tar.extractfile("docs.json")
# do something like f.read()
# since your file is json, you'll probably want to do this:
import json
json.loads(f.read())
file, it's taken by Python
This one will work too.
import tarfile
tar = tarfile.open("docs.tar.gz")
files = tar.getmembers()
f = tar.extractfile(files[0]) # if your docs.json is in the 0th position
f.readlines()
As an example using Python3's context managers, a JSON file like this:
$ cat myfile.json
{
"key1": 1,
"key2": 2,
"key3": null
}
is compressed with
tar czvf myfile.json.tar.gz myfile.json
and can be extracted like this
import tarfile
import json
tar_file_name = "myfile.json.tar.gz"
data_file_name = "myfile.json"
with tarfile.open(tar_file_name, "r:gz") as tar:
with tar.extractfile(data_file_name) as f:
j = json.loads(f.read())
print(j)
# {'key1': 1, 'key2': 2, 'key3': None}
