Requests — how to tell if you're getting a success message?

user_1742777 0
Viewed 41506

My question is closely related to this one.

I'm using the Requests library to hit an HTTP endpoint. I want to check if the response is a success.

I am currently doing this:

r = requests.get(url)
if 200 <= response.status_code <= 299:
    # Do something here!

Instead of doing that ugly check for values between 200 and 299, is there a shorthand I can use?

python-requests http-response-codes httprequest http python
3 Answers

The response has an ok property. Use that:

if response.ok:
    ...

The implementation is just a try/except around Response.raise_for_status, which is itself checks the status code.

@property
def ok(self):
    """Returns True if :attr:`status_code` is less than 400, False if not.

    This attribute checks if the status code of the response is between
    400 and 600 to see if there was a client error or a server error. If
    the status code is between 200 and 400, this will return True. This
    is **not** a check to see if the response code is ``200 OK``.
    """
    try:
        self.raise_for_status()
    except HTTPError:
        return False
    return True
user_6740390

I am a Python newbie but I think the easiest way is:

if response.ok:
    # whatever
user_8510030

The pythonic way to check for requests success would be to optionally raise an exception with

try:
    resp = requests.get(url)
    resp.raise_for_status()
except requests.exceptions.HTTPError as err:
    print(err)

EAFP: It’s Easier to Ask for Forgiveness than Permission: You should just do what you expect to work and if an exception might be thrown from the operation then catch it and deal with that fact.

user_71085890
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