Message 252834 - Python tracker

➜

This issue tracker has been migrated to GitHub , and is currently read-only.
For more information, see the GitHub FAQs in the Python's Developer Guide.

In-reply-to
Author	terry.reedy
Recipients	markroseman, terry.reedy
Date	2015年10月12日.02:01:20
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1444615281.59.0.0663308776188.issue25254@psf.upfronthosting.co.za>

Content
No. Turning it on, I discovered why off is default. When it on, it sometimes does surprising things on IDLE. For instance, print('x') is (usually) a builtin and can not be stepped into. However, it calls sys.stdout.write('x'+'\n'). Under Idle, user process sys.stdout is PyShell.Pseudofile, so when source is checked, 'step' on a line with print opens the file and highlights lines in the write method. Step should ask before opening a file, and/or a 'smart step' is needed.

Content

No. Turning it on, I discovered why off is default. When it on, it sometimes does surprising things on IDLE. For instance, print('x') is (usually) a builtin and can not be stepped into. However, it calls sys.stdout.write('x'+'\n'). Under Idle, user process sys.stdout is PyShell.Pseudofile, so when source is checked, 'step' on a line with print opens the file and highlights lines in the write method.
Step should ask before opening a file, and/or a 'smart step' is needed.

History
Date	User	Action	Args
2015年10月12日 02:01:21	terry.reedy	set	recipients: + terry.reedy, markroseman
2015年10月12日 02:01:21	terry.reedy	set	messageid: <1444615281.59.0.0663308776188.issue25254@psf.upfronthosting.co.za>
2015年10月12日 02:01:21	terry.reedy	link	issue25254 messages
2015年10月12日 02:01:20	terry.reedy	create

homepage