Repeated Pickler.dump() doesn't reset the state in the C implementation of pickle

BPO	33209
Nosy	@pitrou, @avassalotti, @ambv, @serhiy-storchaka, @miss-islington
PRs	bpo-23403: Bump pickle.DEFAULT_PROTOCOL to 4 #6355 bpo-33209: End framing at the end of C implementation of pickle.Pickler.dump(). #6363 [3.7] bpo-33209: End framing at the end of C implementation of pickle.Pickler.dump(). (GH-6363) #6366 [3.6] bpo-33209: End framing at the end of C implementation of pickle.Pickler.dump(). (GH-6363) #6367

^{Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.}

Show more details

GitHub fields:

assignee = None
closed_at = <Date 2018-04-04.05:08:08.692>
created_at = <Date 2018-04-03.01:08:23.835>
labels = ['extension-modules', '3.8', 'type-bug', '3.7']
title = "Repeated Pickler.dump() doesn't reset the state in the C implementation of pickle"
updated_at = <Date 2018-04-04.05:08:08.692>
user = 'https://github.com/serhiy-storchaka'

bugs.python.org fields:

activity = <Date 2018-04-04.05:08:08.692>
actor = 'serhiy.storchaka'
assignee = 'none'
closed = True
closed_date = <Date 2018-04-04.05:08:08.692>
closer = 'serhiy.storchaka'
components = ['Extension Modules']
creation = <Date 2018-04-03.01:08:23.835>
creator = 'serhiy.storchaka'
dependencies = []
files = []
hgrepos = []
issue_num = 33209
keywords = ['patch']
message_count = 4.0
messages = ['314847', '314898', '314899', '314903']
nosy_count = 5.0
nosy_names = ['pitrou', 'alexandre.vassalotti', 'lukasz.langa', 'serhiy.storchaka', 'miss-islington']
pr_nums = ['6355', '6363', '6366', '6367']
priority = 'normal'
resolution = 'fixed'
stage = 'resolved'
status = 'closed'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue33209'
versions = ['Python 3.6', 'Python 3.7', 'Python 3.8']