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Java SafeVarargs annotation, does a standard or best practice exist?
I've recently come across the java @SafeVarargs annotation. Googling for what makes a variadic function in Java unsafe left me rather confused (heap poisoning? erased types?), so I'd like to know a few things:
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Why does Environment.Exit() not terminate the program any more?
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Database cluster and load balancing
...rgot about replication :) Yes, you can achieve load balancing that way in combination w/ application level logic :). +1
– Jimmy Chandra
Jul 22 '09 at 14:46
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ASP.NET MVC - Should business logic exist in controllers?
...rollers instead of repositories then? How does the Unit of Work principle come into play in that case?
– Kevin Pang
Oct 24 '08 at 21:01
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difference and when to use getApplication(), getApplicationContext(), getBaseContext() and someClass
...xt is just information about an environment right?
– committedandroider
Nov 20 '14 at 4:03
Yes, its like the sandbox t...
How to form tuple column from two columns in Pandas
I've got a Pandas DataFrame and I want to combine the 'lat' and 'long' columns to form a tuple.
4 Answers
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How to write header row with csv.DictWriter?
...eaders)
for row in dr:
dw.writerow(row)
As @FM mentions in a comment, you can condense header-writing to a one-liner, e.g.:
with open(outfile,'wb') as fou:
dw = csv.DictWriter(fou, delimiter='\t', fieldnames=dr.fieldnames)
dw.writerow(dict((fn,fn) for fn in dr.fieldnames))
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