Message 398727 - Python tracker

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Author	serhiy.storchaka
Recipients	eric.snow, georg.brandl, iritkatriel, josh.r, louielu, serhiy.storchaka, xdegaye
Date	2021-08-02.06:11:15
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1627884675.28.0.104351902916.issue20703@roundup.psfhosted.org>
In-reply-to

Content
Having a side effect at import time is not good. It will interfere with programs which just import pdb, but not use it. There are two other options: 1. Import readline at top level, but call set_completer_delims() lazily. 2. Do not import readline at all. Call set_completer_delims() only if readline is already imported (sys.modules.get('readline') is not None). I prefer the latter one.

Having a side effect at import time is not good. It will interfere with programs which just import pdb, but not use it.

There are two other options:

1. Import readline at top level, but call set_completer_delims() lazily.

2. Do not import readline at all. Call set_completer_delims() only if readline is already imported (sys.modules.get('readline') is not None).

I prefer the latter one.

History
Date	User	Action	Args
2021-08-02 06:11:15	serhiy.storchaka	set	recipients: + serhiy.storchaka, georg.brandl, xdegaye, eric.snow, josh.r, louielu, iritkatriel
2021-08-02 06:11:15	serhiy.storchaka	set	messageid: <1627884675.28.0.104351902916.issue20703@roundup.psfhosted.org>
2021-08-02 06:11:15	serhiy.storchaka	link	issue20703 messages
2021-08-02 06:11:15	serhiy.storchaka	create