python runtime_error ai_generated true

AttributeError: 'FastAPI' object has no attribute 'router'

ID: python/fastapi-attribute-error-router

Also available as: JSON · Markdown · 中文
80%Fix Rate
85%Confidence
0Evidence
2024-11-05First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
3.x active — — —

Root Cause

Calling app.router incorrectly or using an older API pattern where the router attribute is accessed on a non-app object.

generic

中文

错误地调用 app.router，或在非应用对象上访问 router 属性的旧 API 模式。

Workarounds

  1. 94% success 
    from fastapi import APIRouter
router = APIRouter()
app.include_router(router)
  2. 88% success 
    for r in app.routes:
    print(r.path)

Dead Ends

Common approaches that don't work:

  1. 85% fail

    Attribute name exists but internal structure differs; downstream calls fail.

  2. 80% fail

    Reintroduces other incompatibilities and is unsupported.