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Python assigning multiple variables to same value? list behavior
...es are naming the same object, use the is operator:
>>> a=b=c=[0,3,5]
>>> a is b
True
You then ask:
what is different from this?
d=e=f=3
e=4
print('f:',f)
print('e:',e)
Here, you're rebinding the name e to the value 4. That doesn't affect the names d and f in any way.
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try/catch + using, right syntax
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answered Jan 4 '11 at 3:58
Jonathan WoodJonathan Wood
57.9k6262 gold badges216216 silver badges355355 bronze badges
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Entity Framework and Connection Pooling
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371
Connection pooling is handled as in any other ADO.NET application. Entity connection still us...
Rails ActiveRecord date between
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Just a note that the currently accepted answer is deprecated in Rails 3. You should do this instead:
Comment.where(:created_at => @selected_date.beginning_of_day..@selected_date.end_of_day)
Or, if you want to or have to use pure string conditions, you can do:
Comment.where('created_at BE...
How to run multiple Python versions on Windows
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136
Running a different copy of Python is as easy as starting the correct executable. You mention t...
C-like structures in Python
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352
Use a named tuple, which was added to the collections module in the standard library in Python...
Is there a way to hide the scroll indicators in a UIScrollView?
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273
Set the showsHorizontalScrollIndicator and showsVerticalScrollIndicator properties of the UIScro...
Maven parent pom vs modules pom
...dules. With this file, a checkout would result in this structure (pattern #3):
root/
parent-pom/
pom.xml
projectA/
pom.xml
This "hack" allows to launch of a reactor build from the root after a checkout and make things even more handy. Actually, this is how I like to setup maven projects...
PHP best way to MD5 multi-dimensional array?
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13 Answers
13
Active
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How to Sign an Already Compiled Apk
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293
create a key using
keytool -genkey -v -keystore my-release-key.keystore -alias alias_name -key...