statistics are empty

[setop]

I needed to know how many retries a function made.

I used the example in the doc (v9.0.0):

from tenacity import *

@retry(stop=stop_after_attempt(3))
def raise_my_exception():
    raise Exception("Fail")

try:
    raise_my_exception()
except Exception as e:
    print(e)
    pass

print(raise_my_exception.retry.statistics)

when executing:

RetryError[<Future at 0x7ffb5b7902d0 state=finished raised Exception>]
{}

statistics are empty

I was expecting

{ "attempt_number" : 3 }

[JSalter2013]

I think the doco is wrong;

from tenacity import *

@retry(stop=stop_after_attempt(3))
def raise_my_exception():
    raise MyException("Fail")

try:
    raise_my_exception()
except Exception:
    pass

print(raise_my_exception.statistics)

Returns:

{'start_time': 1304658.171, 'attempt_number': 3, 'idle_for': 0.0, 'delay_since_first_attempt': 0.0}

[setop]

I'm surprised, because the source are ok.
It has been changed 8 months ago.
Meaning the online documentation is at least 8 month old.
@jd can you refresh it ?

[LotfiRafik]

duplicates #486

[sasa-buklijas]

I think the doco is wrong;

from tenacity import *

@Retry(stop=stop_after_attempt(3))
def raise_my_exception():
raise MyException("Fail")

try:
raise_my_exception()
except Exception:
pass

print(raise_my_exception.statistics)
Returns:

{'start_time': 1304658.171, 'attempt_number': 3, 'idle_for': 0.0, 'delay_since_first_attempt': 0.0}

Thanks, had same problem