Why does the program not see the path to the file?

Question

Python

I have this code

import requests
import sys
import os
def install(package: str):
    request = requests.get("http://api.com/v1.0/package?name="+package)
    package_json = request.json()
    print(request)
    print("Package name: "+package_json["display_name"])
    print("Description: "+package_json["description"])
    print("Package ID: "+str(package_json["id"]))
    downloads = "./downloads/{}.exe".format(package)
    with open(downloads, "wb") as f:
        response = requests.get(package_json["download_url"], stream=True, allow_redirects=True)
        total = response.headers.get('content-length')

        if total is None:
            f.write(response.content)
        else:
            downloaded = 0
            total = int(total)
            for data in response.iter_content(chunk_size=max(int(total / 1000), 1024 * 1024)):
                downloaded += len(data)
                f.write(data)
                done = int(50 * downloaded / total)
                sys.stdout.write('\rDownloading: [{}{}] {}% Complete'.format('█' * done, '-' * (50 - done), done*2))
                sys.stdout.flush()
    print("\n\nRunning installer executable...")
    os.startfile(os.path.dirname(os.path.abspath(__file__))+"\\downloads\\{}.exe".format(package))


if __name__ == '__main__':
    try:
        strg = str(sys.argv[1])
        print(strg)
        print(sys.argv)
        strg_final = strg.replace(r"client://", "")
        print(strg_final)
        install(strg_final)
    except KeyboardInterrupt:
        print("\ncancled by user")

the fact is that everything works in the console, but when I run the program through the browser, the arguments are transmitted but it constantly knocks out such an error . How to be?

Answer 1

You need to form the path in the same way. Otherwise, in the first case, it is written relative to the current directory:
"./downloads/{}.exe".format(package)
and in the second case, relative to the path where the script is located:
os.path.dirname(os.path.abspath (__file__))+"\\downloads\\{}.exe".format(package)
If the current directory is the directory with the script, then everything works fine, if not, then the file cannot be found. And I would use the second option (with an absolute path).