Function fetch_latest_version

src/scancode/outdated.py:221–250

Fetch `new_version_url` and return the latest version of scancode as a string.

(new_version_url='https://pypi.org/pypi/scancode-toolkit/json')

def fetch_latest_version(new_version_url='https://pypi.org/pypi/scancode-toolkit/json'):
    """
    Fetch `new_version_url` and return the latest version of scancode as a
    string.
    """
    requests_args = dict(
        timeout=10,
        verify=True,
        headers={'Accept': 'application/json'},
    )
    try:
        response = requests.get(new_version_url, **requests_args)
    except (ConnectionError) as e:
        logger.debug('fetch_latest_version: Download failed for %(url)r' % locals())
        raise

    status = response.status_code
    if status != 200:
        msg = 'fetch_latest_version: Download failed for %(url)r with %(status)r' % locals()
        logger.debug(msg)
        raise Exception(msg)

    # The check is done using python.org PyPI API
    payload = response.json()
    releases = [
        r for r in payload['releases'] if not packaging_version.parse(r).is_prerelease]
    releases = sorted(releases, key=packaging_version.parse)
    latest_version = releases[-1]

    return latest_version