Add support for PyCharm style alphabetic sorting (edited from: all upper cases name is sorted top most)

[yyscamper]

Below is the sorted result using my isort configuration, you could see the both 'BALL' and RC is placed at the top most. The name Action is placed below 'BALL' and 'RC' is not correct for me:

from pkg import BALL
from pkg import RC
from pkg import Action
from pkg import Bacoo
from pkg import RCNewCode
from pkg import actual
from pkg import rc
from pkg import recorder

What I expected is:

from pkg import Action
from pkg import BALL
from pkg import Bacoo
from pkg import RC
from pkg import RCNewCode
from pkg import actual
from pkg import rc
from pkg import recorder

That means following the default python string odering:

>>> 'BALL' < 'RC' < 'Action'
False
>>> 'Action' < 'BALL' < 'RC'
True

So I wonder whether there is any configuration can make it?

Below is my isort configuration:

[isort]
line_length = 80
indent = '  '
force_single_line = True
known_first_party=test

[yyscamper]

Seems I find the root cause from #370, @timothycrosley replied:

When doing from imports isort wants to separate CONSTANTS, Classes, and variables from each-other

So whether isort provides any configuration to disable such kind of separation?

[timothycrosley]

Hi @yyscamper!

Yes, you can configure this! The default setting which causes this to happen is:

order_by_type

which defaults to True. Simply setting order_by_type to False in a config file or doing --dont-order-by-type on the command line should give you the behavior that you want.

Thanks!

~Timothy

[timothycrosley]

Also, you can find a reasonably complete definition of all these settings here: https://github.com/timothycrosley/isort/wiki/isort-Settings.

Thanks!

~Timothy

[yyscamper]

this is the result after disabling order_by_type, the order for Bacoo and BALL , RC, rc, RCNewBase is still not correct. Any reason? @timothycrosley

from pkg import Action
from pkg import actual
from pkg import Bacoo
from pkg import BALL
from pkg import RC
from pkg import rc
from pkg import RCNewCode
from pkg import recorder

[timothycrosley]

Currently, when sorting without type ordering, isort ignores the casing of the strings, and gives you a fully alphabetic sort. Is your intention to have an non-typed, but case aware sort?

[yyscamper]

@timothycrosley yes, that's what I want. Most people in my team uses PyCharm, this is the default behavior for PyCharm.

[timothycrosley]

Hi @yyscamper,

I've added support for this in the lasted version of isort via the case_sensitive setting, as shown in the test uploaded to the pull request:

https://github.com/timothycrosley/isort/pull/892/files#diff-e82bf52c272f12dee456325bfcb553d8R2850

Thanks!

~Timothy

[yyscamper]

@timothycrosley I just tested using latest version, it works. Thank for you quick action on this.