How to pass in parameter in a sys.argv[] code -Python

Question

i have tried to pass in my dir but i don't seem to understand system line argument..here is a sample code that checks for duplicate files in a dir, gotten from here...i don't know how to insert my own Path as parameter

def chunk_reader(fobj, chunk_size=1024):
    """Generator that reads a file in chunks of bytes"""
    while True:
        chunk = fobj.read(chunk_size)
        if not chunk:
            return
        yield chunk

def check_for_duplicates(paths, hash=hashlib.sha1):
    hashes = {}
    for path in paths:
        for dirpath, dirnames, filenames in os.walk(path):
            for filename in filenames:
                full_path = os.path.join(dirpath, filename)
                hashobj = hash()
                for chunk in chunk_reader(open(full_path, 'rb')):
                    hashobj.update(chunk)
                file_id = (hashobj.digest(), os.path.getsize(full_path))
                duplicate = hashes.get(file_id, None)
                if duplicate:
                    print("Duplicate found: %s and %s" % (full_path, duplicate))
                else:
                    hashes[file_id] = full_path

if sys.argv[1:]:
    check_for_duplicates(sys.argv[1:])
else:
    print("Please pass the paths to check as parameters to the script")

pls how do i pass in my path..?

You will get more and better answers if you create a [Minimal, Complete, and Verifiable](http://stackoverflow.com/help/mcve) example. — Stephen Rauch, Jun 06 '18 at 01:01
the code is correct...i just don't understand the `sys.argv[1:]` part...how do i pass in my DirPath ? — X-Black..., Jun 06 '18 at 01:07
Please note the *Minimal* in [Minimal, Complete, and Verifiable](http://stackoverflow.com/help/mcve). Please remove anything that is not relevant to the question. — Stephen Rauch, Jun 06 '18 at 01:08
Are you asking us to explain this code or fix it? Are you asking how to call it? — Patrick Haugh, Jun 06 '18 at 01:13
i get the code...its this part `if sys.argv[1:]: check_for_duplicates(sys.argv[1:])`..i don't understand...how can i insert my dirpath in the code — X-Black..., Jun 06 '18 at 01:21
You pass the paths as arguments when you call the script `python myscript.py path1 path2` — Patrick Haugh, Jun 06 '18 at 01:22
Possible duplicate of [sys.argv\[1\] meaning in script](https://stackoverflow.com/questions/4117530/sys-argv1-meaning-in-script) — Patrick Haugh, Jun 06 '18 at 01:31

score 0 · Accepted Answer · answered Jun 06 '18 at 17:22

i did the script method... but i also got around with a better way by removing if sys.argv[1:]: check_for_duplicates(sys.argv[1:]) else: print("Please pass the paths to check as parameters to the script")

and replace it with a main function to execute the codeif __name__ == '__main__': check_for_duplicates(yourPaths)

How to pass in parameter in a sys.argv[] code -Python

1 Answers1