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Saturday, December 4, 2021

Python 3.6.9 : Unarchive a RAR file with UnRAR and python.

In this tutorial, I will show you how can unrar a RAR archive with and without a password.
First, go to this website and install the UnRAR.dll file.
After you install into default path: C:\Program Files (x86)\UnrarDLL you need to create and set a new environment variable named UNRAR_LIB_PATH.
You need to select the 32 or 64 paths to this environment variable, and this depends on the test archive.
Because I create a RAR archive with x64 version I used this path for the environment variable: C:\Program Files (x86)\UnrarDLL\x64\UnRAR64.dll.
The first test archive I created was named TestRAR.rar and I used a password 111 with encryption.
The second one is named TestRAR001.rar and has no password.
Let's install the unrar python module with the pip tool.
pip install unrar
Requirement already satisfied: unrar in c:\python39\lib\site-packages (0.4)
Let's see the source code in python version 3.6.9
from unrar import rarfile

print("-----------------")
#archiveRARFile = r"C:\\PythonProjects\\RARArchive\\TestRAR.rar"
archiveRARFile = r"C:\\PythonProjects\\RARArchive\\TestRAR001.rar"
extractPath = r"C:\\PythonProjects\\RARArchive"

files = []
#with rarfile.RarFile(archiveRARFile,"r","111") as rarFile:
with rarfile.RarFile(archiveRARFile,"r","") as rarFile:
    files = rarFile.namelist()
    rarFile.extractall(extractPath)

print("files ",files)

for file in files:
    pathFile = fr"{extractPath}+{file}"
    with open(file,"r") as f:
        data = f.readlines()
        for line in data:
            line = line.strip()
            print(line)
You can see I commented two rows for each archive in order to test each one:
After I tested, this is the result of each test and both work great.
C:\PythonProjects\RARArchive>python unrarFile.py
-----------------
files  ['TestRAR.txt']
This is a test for RAR archive.

C:\PythonProjects\RARArchive>python unrarFile.py
-----------------
files  ['TestRAR.txt']
This is a test for RAR archive.