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!