Shopify Question posted in
The Shopify help center can be found here.

UnicodeError Python 3 & Requests – Shopify

I’ve used requests before with Python 2.7 and I never had this issue. Now I’m coding in Python 3 and it won’t even get connect to the server.

I keep getting the error: UnicodeError: label empty or too long

Simplified code for illustration purpose:

shop_url = "https://APIKEY:[email protected]/admin/"

def get_products():
    url = shop_url + "products.json"
    r = requests.get(url=url, params={"limit": "250"})
    response = r.json()
    print(response)

I’ve read it has to do with the IDNA coding of the url before it connects to the server.

Is there anyone who knows how to solve this problem?

EDIT:
I’ve found the solution, instead of passing the APIKEY & CODE in the URL. I can pass it in the header as HTTPBasicAuth. Than the url changes to "http://SHOP.ECOMMERCE.com/admin/" and IDNA no longer gives any issues.

Tags:

2

Answers


  1. Chosen as BEST ANSWER
    0

    I've found the solution, instead of passing the APIKEY & CODE in the URL. I can pass it in the header as HTTPBasicAuth. Than the url changes to "http://SHOP.ECOMMERCE.com/admin/" and IDNA no longer gives any issues.


  2. 0

    According to the report (still open!) at Python tracker issue 32958, the issue here is that requests in Python 3 now passes URLs to idna.py (a change from Python 2).

    idna.py attempts to sanity-check hostnames before passing them to socket.gethostbyname(). It does this by first checking whether the first component (or possibly each component) of the name is less than 64 characters in length.

    (Each of a hostname’s dot-separated components — referred to as "labels" in RFC 1035 — has a length restriction. So, the idea behind the check is a sound one, as hostname components longer than 64 characters are invalid according to standards.):

    The labels must follow the rules for ARPANET host names. They must
    start with a letter, end with a letter or digit, and have as interior
    characters only letters, digits, and hyphen. There are also some
    restrictions on the length. Labels must be 63 characters or less.

    Unfortunately, when idna.py checks the hostname length, it includes everything from the protocol separators up to the first . character — including any basic-auth parameters specified in the URL.

    The workaround is, as you already found, to supply the auth parameters in the request headers.

    Login or Signup to reply.
Please signup or login to give your own answer.

Back To Top
Search