Restricting search period

restrict_search_period.py

# Function to create string for search start date
def get_start_date_string(search_period_days):
    """Returns string for date at start of search period."""
    search_start_date = datetime.today() – timedelta(search_period_days)
    date_string = datetime(year=search_start_date.year,month=search_start_date.month,
                           day=search_start_date.day).strftime(‘%Y-%m-%dT%H:%M:%SZ’)
    return date_string

# Creating date string and executing search
date_string = get_start_date_string(7)
results = youtube_api.search().list(q=search_terms, part=’snippet’,
                                type=’video’, order=’viewCount’, maxResults=50,
                                publishedAfter=date_string).execute()