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How to avoid .pyc files?
...lue to
modify the interpreter’s behaviour.
Update 2010-11-27: Python 3.2 addresses the issue of cluttering source folders with .pyc files by introducing a special __pycache__ subfolder, see What's New in Python 3.2 - PYC Repository Directories.
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Deleting array elements in JavaScript - delete vs splice
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1713
delete will delete the object property, but will not reindex the array or update its length. Thi...
Is there a bash command which counts files?
... |
edited Jan 25 '17 at 5:37
answered Jul 3 '12 at 8:41
Dan...
Disable Rails SQL logging in console
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321
To turn it off:
old_logger = ActiveRecord::Base.logger
ActiveRecord::Base.logger = nil
To t...
Shortcut to switch between design and text in Android Studio
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edited Mar 19 at 8:39
answered Dec 19 '13 at 13:35
G...
Get exception description and stack trace which caused an exception, all as a string
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653
See the traceback module, specifically the format_exc() function. Here.
import traceback
try:
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Redis消息通知系统的实现 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...何查询消息的。
先插入三条消息，其<MSGID>分别是1，2，3：
redis> HMSET msg:1 title title1 content content1
redis> HMSET msg:2 title title2 content content2
redis> HMSET msg:3 title title3 content content3
再把这三条消息发送给某个用户，其<USRID>是123：
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How to clear an ImageView in Android?
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543
I used to do it with the dennis.sheppard solution:
viewToUse.setImageResource(0);
it works bu...
ASP.NET MVC 3: Override “name” attribute with TextBoxFor
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234
Rob, actually there is a much simpler way. Instead of name, use Name:
@Html.TextBoxFor(x =>...
Warning message: In `…` : invalid factor level, NA generated
... "Type" to be a character.
> fixed <- data.frame("Type" = character(3), "Amount" = numeric(3))
> str(fixed)
'data.frame': 3 obs. of 2 variables:
$ Type : Factor w/ 1 level "": NA 1 1
$ Amount: chr "100" "0" "0"
>
> fixed <- data.frame("Type" = character(3), "Amount" = nume...