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How to create an exit message
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answered Sep 17 '08 at 18:50
Chris BunchChris Bunch
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Relative imports in Python 3
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AyaAya
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Make Heroku run non-master Git branch
...om/articles/…
– Jon Mountjoy
Jan 30 '13 at 10:52
50
Worth noting also, when you're ready to go ...
SqlAlchemy - Filtering by Relationship Attribute
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170
Use method has() of relationship (more readable):
patients = Patient.query.filter(Patient.mothe...
Shorthand way for assigning a single field in a record, while copying the rest of the fields?
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answered Feb 19 '13 at 10:54
Chris TaylorChris Taylor
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What is the difference between save and export in Docker?
...h images.
An image has to be considered as 'dead' or immutable, starting 0 or 1000 containers from it won't alter a single byte. That's why I made a comparison with a system install ISO earlier. It's maybe even closer to a live-CD.
A container "boots" the image and adds an additional layer on top ...
Reset the database (purge all), then seed a database
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280
I use rake db:reset which drops and then recreates the database and includes your seeds.rb file....
What is the difference between Collections.emptyList() and Collections.EMPTY_LIST
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edited Mar 27 '13 at 10:17
answered Feb 14 '13 at 8:44
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Undoing accidental git stash pop
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70
Try using How to recover a dropped stash in Git? to find the stash you popped. I think there ar...
Scala equivalent of Java java.lang.Class Object
... type erasure on the JVM, in the case of getClass.
scala> classOf[C]
res0: java.lang.Class[C] = class C
scala> c.getClass
res1: java.lang.Class[_] = class C
That is why the following will not work:
val xClass: Class[X] = new X().getClass //it returns Class[_], nor Class[X]
val integerClass:...