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How to generate all permutations of a list?
...:
for i in range(len(elements)):
# nb elements[0:1] works in both string and list contexts
yield perm[:i] + elements[0:1] + perm[i:]
A couple of alternative approaches are listed in the documentation of itertools.permutations. Here's one:
def permutatio...
Using Rails serialize to save hash to database
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edited Oct 30 '15 at 16:40
Dave Newton
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How can I escape a double quote inside double quotes?
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290
Use a backslash:
echo "\"" # Prints one " character.
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How do I horizontally center an absolute positioned element inside a 100% width div? [duplicate]
... be horizontally centered within #header . Normally, I would do a margin:0 auto for relatively positioned elements but I am stuck here. Can someone show me the way?
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how to convert a string to date in mysql?
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Jacob
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answered Mar 5 '11 at 3:14
bluefootbluefoot
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Change text color based on brightness of the covered background area?
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+50
Interesting resources for this:
W3C - Ensure that foreground and background color combinations provide sufficient contrast
Calculati...
Is an index needed for a primary key in SQLite?
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150
It does it for you.
INTEGER PRIMARY KEY columns aside, both UNIQUE and PRIMARY KEY
constra...
How does node.bcrypt.js compare hashed and plaintext passwords without the salt?
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answered Oct 23 '12 at 6:00
BillBill
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Changing the cursor in WPF sometimes works, sometimes doesn't
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answered Nov 20 '08 at 22:03
Matt HamiltonMatt Hamilton
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Export from sqlite to csv using shell script
...qlite.db <<!
.headers on
.mode csv
.output out.csv
select * from eS1100_sensor_results;
!
instead.
sh/bash methods
You can either call your script with a redirection:
$ your_script >out.csv
or you can insert the following as a first line in your script:
exec >out.csv
The former method...