Wrong indentation size auto-detection in python

[Eugenii10]

Issue Type

Bug

Description

Actual behavior

VS Code incorrectly determine indentation style as 8 spaces.

Expected behavior

VS Code determine indentation style as 4 spaces.

Steps to reproduce:

• Launch VS Code
• Open Untitled-1.py from the attached archive below
  project.zip

VS Code Info

VS Code version: Code 1.20.1 (f88bbf9, 2018-02-13T15:34:36.336Z)
OS version: Windows_NT x64 10.0.14393

System Info

Item	Value
CPUs	Intel(R) Core(TM) i7-3610QM CPU @ 2.30GHz (8 x 2295)
Memory (System)	11.89GB (6.08GB free)
Process Argv	D:\Program Files\VSCode\Code.exe
Screen Reader	no
VM	0%

Extensions (25)

Extension	Author (truncated)	Version
orclapex-autocomplete	apn	0.0.2
open-html-in-browser	cod	0.1.21
bracket-pair-colorizer	Coe	1.0.15
xml	Dot	1.9.2
vscode-html-css	ecm	0.2.0
auto-close-tag	for	0.5.6
auto-rename-tag	for	0.0.15
code-runner	for	0.8.7
scoper	Gru	0.0.5
beautify	Hoo	1.3.0
python	ms-	2018.1.0
debugger-for-chrome	msj	4.1.0
python-docs	Muk	0.8.3
autodocstring	njp	0.2.0
vscode-code-outline	pat	0.0.13
java	red	0.20.0
guides	spy	0.9.1
open-in-browser	tec	1.1.0
vscode-java-debug	vsc	0.6.0
vscode-java-pack	vsc	0.3.0
vscode-java-test	vsc	0.3.0
vscode-maven	vsc	0.5.2
vscode-todo-highlight	way	0.5.11
plsql-language	xyz	1.1.2
html-css-class-completion	Zig	1.17.1

Reproduces without extensions

[alexdima]

Here is the file for easier copy-pasting:

a = 10             # 0 space indent
b = 5              # 0 space indent
if a > 10:         # 0 space indent
    a += 1         # 4 space indent      delta 4 spaces
    if b > 5:      # 4 space indent
        b += 1     # 8 space indent      delta 4 spaces
        b += 1     # 8 space indent
        b += 1     # 8 space indent
# comment line 1   # 0 space indent      delta 8 spaces
# comment line 2   # 0 space indent
# comment line 3   # 0 space indent
        b += 1     # 8 space indent      delta 8 spaces
        b += 1     # 8 space indent
        b += 1     # 8 space indent

There are 2 deltas of 4 spaces, and 2 deltas of 8 spaces. The indentation detector should detect 4 spaces when there is a tie in the delta counts.