プログレスバー

run.py

import io

import pycurl
import progressbar

fp = io.BytesIO()
curl = pycurl.Curl()
curl.setopt(pycurl.URL, 'おおきなファイルのURL')  # noqa
curl.setopt(pycurl.NOPROGRESS, 0)
curl.setopt(pycurl.WRITEDATA, fp)
progress = progressbar.ProgressBar()


def update(total_to_download, total_downloaded, total_to_upload, total_uploaded):
    if total_to_download:
        percent = int(total_downloaded / total_to_download * 100)
        progress.update(percent)


curl.setopt(pycurl.PROGRESSFUNCTION, update)
try:
    progress.start()
    curl.perform()
finally:
    progress.finish()