python - urllib.error.HTTPError: HTTP Error 401: Unauthorized

Question

I'm new to pyhton and just tried to write data from external file. I have no idea where i'm going wrong. can anyone please help me with this. Thanks in advance.

from urllib import request

url = r'https://query1.finance.yahoo.com/v7/finance/download/AMD?period1=1497317134&period2=1499909134&interval=1d&events=history&crumb=HwDtuBHqtg0'

def download_csv(csv_url):

    csv = request.urlopen(csv_url)
    csv_data = csv.read
    csv_str = str(csv_data)
    file = csv_str.split('\\n')
    dest_url = r'appl.csv'
    wr = open(dest_url, 'w')
    for data in file:
        wr.write(data + '\n')
    wr.close()

download_csv(url)

If you visit that URL from your browser you will see that you need an authentication cookie to access that resource — Andrea Corbellini, Jul 13 '17 at 01:56
I think this will help you: [Yahoo Finance URL not working](https://stackoverflow.com/questions/44030983/yahoo-finance-url-not-working) — Andrea Corbellini, Jul 13 '17 at 01:56

Fabien · Accepted Answer · 2017-07-13T19:06:21.410

So I ran the URL in the browser, and it states clearly that your API requires a cookie.

So you must provide a proper header, usually with urllib you can manage sessions but honestly I would opt for a more user-friendly library, such as the requests python library (HTTP for Humans)

Example:

s = requests.Session()

s.get('http://httpbin.org/cookies/set/sessioncookie/123456789')
r = s.get('http://httpbin.org/cookies')

print(r.text)
# '{"cookies": {"sessioncookie": "123456789"}}'

More: http://docs.python-requests.org/en/master/user/advanced/#session-objects

python - urllib.error.HTTPError: HTTP Error 401: Unauthorized

1 Answers1