cannot run module with double quotes

[ericshenjs]

BPO	31112
Nosy	@pfmoore, @tjguk, @zware, @eryksun, @zooba

^{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 2017-08-03.04:58:23.276>
created_at = <Date 2017-08-03.03:11:54.651>
labels = ['invalid', 'OS-windows', 'performance']
title = 'cannot run module with double quotes'
updated_at = <Date 2017-08-03.04:58:23.274>
user = 'https://bugs.python.org/ericshenjs'

bugs.python.org fields:

activity = <Date 2017-08-03.04:58:23.274>
actor = 'eryksun'
assignee = 'none'
closed = True
closed_date = <Date 2017-08-03.04:58:23.276>
closer = 'eryksun'
components = ['Windows']
creation = <Date 2017-08-03.03:11:54.651>
creator = 'ericshenjs'
dependencies = []
files = []
hgrepos = []
issue_num = 31112
keywords = []
message_count = 2.0
messages = ['299681', '299682']
nosy_count = 6.0
nosy_names = ['paul.moore', 'tim.golden', 'zach.ware', 'eryksun', 'steve.dower', 'ericshenjs']
pr_nums = []
priority = 'normal'
resolution = 'not a bug'
stage = 'resolved'
status = 'closed'
superseder = None
type = 'resource usage'
url = 'https://bugs.python.org/issue31112'
versions = ['Python 3.6']

[ericshenjs]

(vPy3X64) test01@NJNU f:\Src\localCode\python\py3_eric

python "-m locust.main -V"
f:\SDKs\Python\vPy3X64\Scripts\python.exe: Error while finding module specification for ' locust.main -V' (ModuleNotFoundError: No module named ' locust')

(vPy3X64) test01@NJNU f:\Src\localCode\python\py3_eric

python -m locust.main -V
[2017-08-03 10:53:19,111] NJNU/INFO/stdout: Locust 0.8a2
[2017-08-03 10:53:19,111] NJNU/INFO/stdout:

(vPy3X64) test01@NJNU f:\Src\localCode\python\py3_eric

python -V
Python 3.6.1 :: Anaconda 4.4.0 (64-bit)

[eryksun]

Python uses the C runtime wmain entry point, which parses the commandline string into an argument array using documented rules 1. The quoted string "-m locust.main -V" is passed as a single argument instead of the expected three arguments: ["-m", "locust.main", "-V"].