def upload_file(source, bucket, key, s3lib, acl, cacheControl, contentType):
    print('uploading from {} {} {}'.format(source, bucket, key))
    contentType = contentType or defaultContentType
    s3lib.Object(bucket, key).put(ACL=acl, Body=open(source, 'rb'),
                                  CacheControl=cacheControl, ContentType=contentType)