Inconsistent use of tabs and spaces in indentation not always detected

[serhiy-storchaka]

BPO	32053
Nosy	@vstinner, @serhiy-storchaka
Superseder	bpo-24260: TabError behavior doesn't match documentation

^{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 2017-11-17.09:14:38.976>
created_at = <Date 2017-11-16.21:36:43.215>
labels = ['interpreter-core', 'type-bug', '3.7']
title = 'Inconsistent use of tabs and spaces in indentation not always detected'
updated_at = <Date 2017-11-17.09:14:38.976>
user = 'https://github.com/serhiy-storchaka'

bugs.python.org fields:

activity = <Date 2017-11-17.09:14:38.976>
actor = 'skrah'
assignee = 'none'
closed = True
closed_date = <Date 2017-11-17.09:14:38.976>
closer = 'skrah'
components = ['Interpreter Core']
creation = <Date 2017-11-16.21:36:43.215>
creator = 'serhiy.storchaka'
dependencies = []
files = []
hgrepos = []
issue_num = 32053
keywords = []
message_count = 1.0
messages = ['306399']
nosy_count = 2.0
nosy_names = ['vstinner', 'serhiy.storchaka']
pr_nums = []
priority = 'normal'
resolution = 'duplicate'
stage = 'resolved'
status = 'closed'
superseder = '24260'
type = 'behavior'
url = 'https://bugs.python.org/issue32053'
versions = ['Python 2.7', 'Python 3.6', 'Python 3.7']

[serhiy-storchaka]

>>> exec('''if 1:
...         print(1)
...        \tprint(2)
... ''')
1
2

The first indented line uses 8 spaces. The second indented line uses 7 spaces + tabulation. Indentations are different, but TabError is not raised.