仅使用 Pathlib 合并 mp4 文件

Question

I just wanna know if this possible without using shutil to merge the files? but by using pathlib only.

my old code for merging files:

 def combine(source: str, output: str),
 
    with open(output, 'wb') as output_file:
        for file in iglob(os.path.join(source, "*.mp4")):
            print(f'Merging', file, end='\r')
            with open(file, 'rb') as input_file:
                shutil.copyfileobj(input_file, output_file)

This is what I tried with pathlib

def combine(source: str, output: str),

    for file in Path(source).glob('*.mp4'):
        print(f'Merging', file)
        Path(output).write_bytes(file.read_bytes())

The problem is, it's not appending the bytes and combining to output file.

Answer 1

You should only open the output file once and then write the bytes of each file you read.

def combine(source: str, output: str),
    print(f'Creating {output}')
    with open(Path(output), 'wb') as outfile:    

        for file in Path(source).glob('*.mp4'):
            print(f'Appending {file}')
            outfile.write(file.read_bytes())