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You wrote this Flask route but get a 404 error:

medium📝 Debug Q6 of 15

Flask - Ecosystem and Patterns

You wrote this Flask route but get a 404 error:

@app.route('/home')
def homepage():
    return 'Welcome'

What is a likely cause?

AYou forgot to import Flask

BYou accessed the URL /homepage instead of /home

CFlask requires routes to be uppercase

DThe function name must be 'home' to match the route

Step-by-Step Solution

Solution:

Step 1: Check route URL vs accessed URL
The route is '/home', so accessing '/homepage' causes 404.
Step 2: Understand function name irrelevance
Function name does not affect URL routing in Flask.
Final Answer:
You accessed the URL /homepage instead of /home -> Option B
Quick Check:
Route URL must match accessed URL exactly [OK]

Quick Trick: Access exact route URL to avoid 404 [OK]

Common Mistakes:

MISTAKES

Assuming function name affects URL
Thinking routes must be uppercase
Ignoring import errors

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