Extracting specific file from an archive

[tester_V]

Greetings!
I need to extract a specific file from an archive. The archive is a zipped directory with subdirectories and a bunch of other files. I need to find a file named "Trace", rename it (I'm adding '1' to the front of the file), and copy it to a directory. I managed to do this, I find the file, and then I open each "Trace" file, read it, and then copy it to a directory.
I do not like reading and writing each file. I'd like just to rename and copy the "Trace" file to a new dir without reading it. Any help is appreciated.
Thank you!

from zipfile import ZipFile

zp_dr = 'C:\\02\\ZP_Files\\Archive-1.zip'  # <-- Zip File
dr_out   = 'C:\\02\\ARCHIVE\\'     # <---------- OutPut Directory

with zipfile.ZipFile(zp_dr,'r') as zz:
        for file in zz.namelist():

            if 'Trace' in file :
                print (f" TraceLog File : {file}")
                fn = Path(file).name
                print(f" TraceLog File Name Only = {fn}")               
                #zz.extract(fn, path=dr_out) # <------ Extracts both file and a directory 
                dr_out_new = f"{dr_out}-1{fn}" # <-- Modifying File name
                print(f" NEW NAME FILE -- {dr_out_new}")
                with zz.open(file, mode="r") as trc, open(dr_out_new,'w', encoding='utf-8') as new_name:
                    for el in trc :
                        print(el)
                        new_name.write(el.decode('utf-8'))
                        
exit   

[deanhystad]

Extract to a temp directory and rename.

import os
from zipfile import ZipFile
from tempfile import TemporaryDirectory


def extract(zip, searchname, destdir="."):
    version = 0
    name, ext = searchname.split(".")
    with ZipFile(zip, "r") as zz, TemporaryDirectory() as tempdir:
        for file in zz.namelist():
            if file.endswith(searchname):
                # Extract file to temporary folder
                zz.extract(file, tempdir)
                # Rename file to reside in destination directory.
                # If multiple matches, add version number to name.
                vstr = f"_{version}" if version > 0 else ""
                destination = rf"{destdir}\{name}{vstr}.{ext}"
                os.rename(rf"{tempdir}\{file}", destination)
                version += 1


extract("somezipfile.zip", "__init__.py", "test")

[snippsat]

I'd like just to rename and copy the "Trace" file to a new dir without reading it. Any help is appreciated.
Thank you!

Have to read all files the zip directory structure as you do with zz.namelist(),or will not find a file.
There are some erros like wrong path when i test your code,here are changes then code work ok.

from zipfile import ZipFile
from pathlib import Path

zp_dr = 'test.zip'  # <-- Zip File
dr_out   = 'C:/code/output_folder'

with ZipFile(zp_dr,'r') as zz:
    for file in zz.namelist():
        if 'find_me.txt' in file :
            print (f" TraceLog File : {file}")
            fn = Path(file).name
            print(f" TraceLog File Name Only = {fn}")
            #zz.extract(fn, path=dr_out) # <------ Extracts both file and a directory
            dr_out_new = f"{dr_out}/1{fn}" # Add / and not -
            print(dr_out_new) # Check that path is ok
            print(f" NEW NAME FILE -- {dr_out_new}")
            with zz.open(file, mode="r") as trc, open(dr_out_new,'w', encoding='utf-8') as new_name:
                for el in trc :
                    print(el)
                    new_name.write(el.decode('utf-8'))

Output:
 TraceLog File : ff/2024/Jan_2024/2024-01-20/find_me.txt
 TraceLog File Name Only = find_me.txt
C:/code/output_folder/1find_me.txt
 NEW NAME FILE -- C:/code/output_folder/1find_me.txt

[Pedroski55]

The module codecs helps with these zip file outputs.

from zipfile import ZipFile
import codecs
 
path2zip = '/home/pedro/tmp/test_zipfile.zip'
savepath  = '/home/pedro/tmp/'

def writeIt(anewname, data):
    with open(anewname, mode="w") as myfile:
        print(f'Writing {anewname} ... ') 
        myfile.write(data)

zin = ZipFile(path2zip, 'r')
for item in zin.infolist():
    if 'j' in item.filename: # get all files with j in their names
        newname = '1' + item.filename
        buffer = zin.read(item.filename)
        output = codecs.decode(buffer)
        writeIt(savepath + newname, output)

Output:
Writing /home/pedro/tmp/1Jingjing_css.txt ... 
Writing /home/pedro/tmp/1jiu_words.txt ... 

[tester_V]

Thank you!