redirect.py: Script freezes without finishing processing pages
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	Meno25
	Apr 18 2021, 3:55 PM

Description

Command line:

python pwb.py redirect do -site:meta:meta

Output:

Retrieving double redirect special page...
Retrieving 30 pages from meta:meta.

The bot then processes the pages then outputs the following line:

Waiting for 9 pages to be put. Estimated time remaining: 0:00:09

Expected behavior:

The bot edits the pages on wiki then terminates successfully.

Actual behavior:

After printing the previous line, the bot freezes and does nothing (without editing the actual wiki).

Note:

The script worked correctly using the same command line arguments before. This bug is recent.
I recommend reviewing the latest changes in the code to see what caused this bug. (Maybe rPWBCfbc63bf3546e752a84c56ba0018080f04338b100 )

Details

	Subject	Repo	Branch	Lines +/-
	[bugfix] Port cache_output from compat	pywikibot/core	master	+314 -144

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		Status	Subtype	Assigned	Task
		Resolved		Xqt	T280466 redirect.py: Script freezes without finishing processing pages
		Resolved		Xqt	T151727 Port cache_output from compat

Event Timeline

Meno25 created this task.Apr 18 2021, 3:55 PM

Restricted Application added subscribers: pywikibot-bugs-list, alaa, Aklapper. · View Herald TranscriptApr 18 2021, 3:55 PM

Probably you aren't logged in and the bot waits for the password. I could reproduce the behaviour in this way. Anyway the async processing should wait until inputs are made. This is a regression against compat.

See T151727.

In T280466#7012062, @Xqt wrote:

Probably you aren't logged in and the bot waits for the password. I could reproduce te behaviour in this way. Anyway the async processing should wait until inputs are done. This is a regression against compat.

See T151727.

You are totally right here. The problem disappeared after logging in the bot.

For the record, this is the steps I did:

python pwb.py login -site:meta:meta

Output:

WARNING: No user is logged in on site meta:meta
Password for user MenoBot on meta:meta (no characters will be shown):
Logging in to meta:meta as MenoBot
Logged in on meta:meta as MenoBot.

Then running the script normally:

python pwb.py redirect do -site:meta:meta

Output:

Retrieving double redirect special page...
Retrieving 30 pages from meta:meta.

Then the bot processes the pages, then outputs the following:

30 pages read
10 pages written
0 pages skipped
Execution time: 26 seconds
Read operation time: 0.9 seconds
Write operation time: 2.6 seconds
Script terminated successfully.