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Replace one substring for another string in shell script
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How to drop multiple columns in postgresql
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Check this:
ALTER TABLE table DROP COLUMN col1, DROP COLUMN col2;
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Rails: where does the infamous “current_user” come from?
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edited Aug 9 '14 at 19:46
answered Oct 4 '12 at 3:48
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Python hashable dicts
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UnknownUnknown
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Wrapping null-returning method in Java with Option in Scala?
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183
The Option companion object's apply method serves as a conversion function from nullable refer...
What is meant by “managed” vs “unmanaged” resources in .NET?
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edited Jun 6 '11 at 8:51
answered Aug 31 '10 at 8:18
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Including Google Web Fonts link or import?
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edited Nov 22 '18 at 15:14
Sayed Mohd Ali
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Is either GET or POST more secure than the other?
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edited Oct 13 '08 at 18:16
answered Oct 13 '08 at 18:11
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What does (angle brackets) mean in Java?
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161
<T> is a generic and can usually be read as "of type T". It depends on the type to the l...
Python serialization - Why pickle?
...tored, usually one would do:
with open('filename', 'wb') as f:
var = {1 : 'a' , 2 : 'b'}
pickle.dump(var, f)
That would store the pickled version of our var dict in the 'filename' file. Then, in another script, you could load from this file into a variable and the dictionary would be recr...