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In Python, if I return inside a “with” block, will the file still close?
...call of a finally statement: "Note that exit handlers and finally clauses, etc., will not be executed."
– Rik Poggi
Mar 27 '12 at 7:55
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How do I get a list of column names from a psycopg2 cursor?
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ps_cursor.execute('select 1 as col_a, 2 as col_b')
my_record = ps_cursor.fetchone()
print (my_record['col_a'],my_record['col_b'])
>> 1, 2
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What it the significance of the Javascript constructor property?
...is referring to the appropriate function. See my answer here for examples, etc.
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How to include jar files with java file and compile in command prompt
...the classpath as an environment variable.
The commands for Windows, Linux, etc are different.
You can find more details in this blog.
http://javarevisited.blogspot.com/2011/01/how-classpath-work-in-java.html
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How to rename with prefix/suffix?
...ame foo foo0 foo? foo??
This renames foo1 to foo01, and foo10 to foo010, etc.
I use a Perl script called rename, which I originally dug out from the first edition Camel book, circa 1992, and then extended, to rename files.
#!/bin/perl -w
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# @(#)$Id: rename.pl,v 1.7 2008/02/16 07:53:08 jleffler ...
What is the difference between partitioning and bucketing a table in Hive ?
...ly correct sampling. Bucketing also aids in doing efficient map-side joins etc.
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List all sequences in a Postgres db 8.1 with SQL
...the list of sequences, i need the table in which it's used, the next value etc.. And i have to do that in SQL
– apelliciari
Sep 29 '09 at 16:07
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Coding in Other (Spoken) Languages
...mbols. Later I learn that "for" meant "para" and "while" meant "mientras" etc. but in the mean time I did not need to know English, but in my case what I needed was to know "C".
Of course when I needed to learn more things, I had to learn English, for the documentation is written in that language....
Play a Sound with Python [duplicate]
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This seems ridiculous and far fetched but you could always use Windows (or whatever OS you prefer) to manage the sound for you!
import os
os.system("start C:/thepathyouwant/file")
Simple, no extensions, somewhat slow and junky, but working.
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How do I concatenate or merge arrays in Swift?
...be propagated to the next operation along the chain (map, flatMap, filter, etc...).
If lazyness makes sense in your particular case, just remember to prepend or append a .lazy to flatten(), for example, modifying Tomasz sample this way:
let c = [a, b].lazy.flatten()
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