AttributeError求助：'function'对象无'response'属性，API模块返回值问题

Let's walk through what's causing your errors and how to fix them properly.

Key Problems in Your Code #

1. Function Return Logic is Broken #

In my_module.py, you have two back-to-back return statements:

return response
return data

Once the first return runs, the function exits immediately—so the second return will never execute. You can't return two values like this; instead, return a tuple containing both values.

2. Incorrectly Accessing Function "Attributes" #

In my_script.py, you're trying to access errorHandler.response—but errorHandler is a function, not an object with attributes. You need to call the function and capture its returned values instead.

3. Unhandled Undefined Variables in Exceptions #

If an exception (like a Timeout or ConnectionError) occurs, the response and data variables are never created. Trying to return them in this case will throw a NameError.

4. Outdated Print Syntax (Python 2 vs 3) #

Your print "..." syntax is Python 2-specific. For compatibility with modern Python, use print("...") instead.

Corrected my_module.py #

import requests
import json

def errorHandler(url):
    response = None
    data = None
    try:
        response = requests.get(url, timeout=5)
        status = response.status_code
        data = response.json()
    except requests.exceptions.Timeout:
        print("Timeout error.\n")
    except requests.exceptions.ConnectionError:
        print("Connection error.\n")
    except ValueError:
        print("ValueError: No JSON object could be decoded.\n")
    else:
        if response.status_code == 200:
            print("Status: 200 OK \n")
        elif response.status_code == 400:
            print(f"Status: {status} error. Bad request.")
            print(f"Correlation ID: {data['correlationId']}\n")
        else:
            print(f"Status: {status} error.\n")
    # Return both values as a tuple
    return response, data

Changes Made: #

• Initialized response and data to None at the start, so they exist even if an exception is thrown.
• Combined the return into a single return response, data (this returns a tuple).
• Updated print statements to use Python 3 syntax, plus f-strings for cleaner string formatting.

Corrected my_script.py #

from my_module import errorHandler

# Call the function and capture both returned values
response, data = errorHandler("https://api.weather.gov/alerts/active")

# Check if response exists before accessing its attributes
if response is not None:
    print(f"Content type is {response.headers['content-type']}.\n")

# Check if data exists before accessing nested keys
if data is not None and 'features' in data and len(data['features']) > 0:
    nwsId = data['features'][0]['properties']['id']
    print(f"Retrieved NWS ID: {nwsId}")
else:
    print("No valid data returned from the API.")

Changes Made: #

• Imported errorHandler from my_module (you were missing this import in your original script).
• Captured the returned tuple into response and data variables.
• Added checks for None and valid data structure before accessing attributes/keys—this prevents crashes if the API call fails.

Why This Fixes Your Error #

The original AttributeError: 'function' object has no attribute 'response' happened because you were treating the errorHandler function like an object with a response attribute. By calling the function and capturing its returned values, you're properly accessing the data the function generates.

内容的提问来源于stack exchange，提问作者klex52s