Configparser is not reading Indended Sections as Mentioned in Docs

[VigneshRajendran]

BPO	41379
PRs	gh-85551: Clarification on options needed for indentation #27830

^{Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.}

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GitHub fields:

assignee = None
closed_at = <Date 2020-07-24.07:03:35.465>
created_at = <Date 2020-07-24.06:01:23.336>
labels = ['3.8', 'type-bug', 'library', 'invalid']
title = 'Configparser is not reading Indended Sections as Mentioned in Docs'
updated_at = <Date 2021-08-19.11:41:53.906>
user = 'https://bugs.python.org/VigneshRajendran'

bugs.python.org fields:

activity = <Date 2021-08-19.11:41:53.906>
actor = 'python-dev'
assignee = 'none'
closed = True
closed_date = <Date 2020-07-24.07:03:35.465>
closer = 'SilentGhost'
components = ['Library (Lib)']
creation = <Date 2020-07-24.06:01:23.336>
creator = 'Vignesh Rajendran'
dependencies = []
files = []
hgrepos = []
issue_num = 41379
keywords = []
message_count = 2.0
messages = ['374160', '374162']
nosy_count = 3.0
nosy_names = ['SilentGhost', 'python-dev', 'Vignesh Rajendran']
pr_nums = ['27830']
priority = 'normal'
resolution = 'not a bug'
stage = 'resolved'
status = 'closed'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue41379'
versions = ['Python 3.8']

[VigneshRajendran]

jaraco/configparser#55

Please check the Bug is raised also in Github,

Sections can be intended is specified in the documentation.

When I read the indented section, its throwing section not found an error in python 3.8

as per Documentation https://docs.python.org/3/library/configparser.html
[You can use comments]
like this
; or this

[Sections Can Be Indented]
can_values_be_as_well = True
does_that_mean_anything_special = False
purpose = formatting for readability

but this is not working.
check this https://stackoverflow.com/questions/62833787/how-to-read-indentated-sections-with-python-configparser/62836972?noredirect=1#comment111176192_62836972

if i read an indented section, its showing section not found.

my file:
[section]
a = 0.3

[subsection]
b = 123

import configparser
conf = configparser.ConfigParser()
conf.read("./test.conf")
a = conf['section']['a']
print(a)

Output of a:

0.3

[subsection]
b = 123

Expected a : 0.3 only

But Section b is not found

[SilentGhost]

In your example you're instantiating ConfigParser with default parameters, meaning empty_lines_in_values equals True, which leads to key "a" consuming everything on the following indented lines. If you're were to specify False as the value for empty_lines_in_values, you'd see the desired behaviour.

The examples in documentation work just fine, as long as you copy them exactly. The reason they do is that there isn't a final value in the non-indented section, but only comments. In any case empty_lines_in_values is what you should be using.

[iritkatriel]

Reopened as per #27830 (comment).