backoff even longer

[peterbe]

This is what 9 attempts looks like if you simulate and have the on_backoff handler enabled:

▶ time python dummy.py
Backing off 0.4 seconds afters 1 tries calling function <function fetch at 0x10f172510> with args ('http://busted.example.com',) and kwargs {}
Backing off 1.4 seconds afters 2 tries calling function <function fetch at 0x10f172510> with args ('http://busted.example.com',) and kwargs {}
Backing off 2.7 seconds afters 3 tries calling function <function fetch at 0x10f172510> with args ('http://busted.example.com',) and kwargs {}
Backing off 5.4 seconds afters 4 tries calling function <function fetch at 0x10f172510> with args ('http://busted.example.com',) and kwargs {}
Backing off 6.3 seconds afters 5 tries calling function <function fetch at 0x10f172510> with args ('http://busted.example.com',) and kwargs {}
Backing off 12.8 seconds afters 6 tries calling function <function fetch at 0x10f172510> with args ('http://busted.example.com',) and kwargs {}
Backing off 36.7 seconds afters 7 tries calling function <function fetch at 0x10f172510> with args ('http://busted.example.com',) and kwargs {}
Backing off 85.5 seconds afters 8 tries calling function <function fetch at 0x10f172510> with args ('http://busted.example.com',) and kwargs {}
Traceback (most recent call last):
...
python dummy.py  0.24s user 0.06s system 0% cpu 2:31.49 total

2m31 seconds with 9 failed attempts.