freebora.py 文件源码

def fetch(session, url, dest='.', overwrite=False, verbose=False):
    "Fetch a single PDF file if not already existing."

    pdf_name = os.path.basename(url)
    path = os.path.join(dest, pdf_name)
    if not os.path.exists(path) or overwrite:
        # if verbose:
        #     print(url)
        with aiohttp.Timeout(60, loop=session.loop):
            async with session.get(url) as response:
                pdf = await response.read()
                # if verbose:
                #     print('%s %d' % (url, len(pdf)))
                async with aiofiles.open(path, mode='wb') as f:
                    await f.write(pdf)
                    if verbose:
                        print('saved %s (%d bytes)' % (path, len(pdf)))