bug fixes

• c#77

new features:

• add SlackMessage.dt and SlackMessage.thread_dt as datetime objects of the timestamps. the default print has also changed to use the dt isoformat

Bugfix Release

the list_files api uses a different type of pagination than other endpoints. This bugfix should make sure the right one is being used

Lazy Evaluations and Rate Limit Handling

major refactoring within the code to lazy fetch channels, channel members, and users. This leads to an improved scalability and faster start up time.

• Users are fetched one by one unless all users are iterated over
• Channels members are only fetched upon access of the .members attribute
• Channels are fetched upon access

in addition, there is support for listing and deleting message reactions

add support for adding team_id for organization wide tokens

add new "show_files_hidden_by_limit" flag for listing files

• workaround for slack error: fetch_members_failed by handling it gracefully and not trying to fetch members of archived channels

fixes #41 by adding the missing requests dependency

migrate to https://github.com/slackapi/python-slack-sdk (see #38)

• implements a proper pagination for listing messages, channels, replies, and files

• refactored and cleaned up the required scopes
• migrated documentation to custom slack app only
• add error messages with required scope hints
• make as_user=True default to avoid invalid argument error

• add a new .files field to SlackMessage containing all the files attached to the message
• add new options to SlackMessage.delete files=True will also delete attached files, replies=True does the same thing for the replies aka. thread.

Thus, deleting everything possible should be reduced to:

s = SlackCleaner2(TOKEN)
for msg in s.msgs():
  msg.delete(files=True, replies=True)

fixes #17 and #7 for a better support of message replies.

Upgraded to python 3.7 with mypy typings.