# Standalone yield from
```python
# Don't
def incremental_wait(n_retry: int):
if n < 1:
raise ValueError
yield from fibo(n_retry)
for waiting_time in incremental_wait(5):
...
# Do
def incremental_wait(n_retry: int):
if n_retry < 1:
raise ValueError
return fibo(n_retry)
for waiting_time in incremental_wait(5):
...
```
---
Bibliography:
- [Title - website.com](need bibliography)