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TaifunPlayer 扩展（Audio Player）：音频播放器扩展，支持流媒体播放控制 ...
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Create Pandas DataFrame from a string
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A simple way to do this is to use StringIO.StringIO (python2) or io.StringIO (python3) and pass that to the pandas.read_csv function. E.g:
import sys
if sys.version_info[0] < 3:
from StringIO import StringIO
else:
from io import StringIO
import pandas as pd
TESTDATA = ...
How to replace multiple white spaces with one white space
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edited Feb 2 '12 at 23:41
Frank van Puffelen
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How to get client's IP address using JavaScript?
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Exit single-user mode
...orer is pointed to a system database like master.
Second, execute a sp_who2 and find all the connections to database 'my_db'.
Kill all the connections by doing KILL { session id } where session id is the SPID listed by sp_who2.
Third, open a new query window.
Execute the following code.
-- Start...
php execute a background process
...Linux machine, I've always handled it like this:
exec(sprintf("%s > %s 2>&1 & echo $! >> %s", $cmd, $outputfile, $pidfile));
This launches the command $cmd, redirects the command output to $outputfile, and writes the process id to $pidfile.
That lets you easily monitor what t...
How to get a dependency tree for an artifact?
...uires a project with an existing pom.xml, but the build is not using one.
2) Find pom.xml of your artifact in maven central repository
Dependencies are described In pom.xml of your artifact. Find it using maven infrastructure.
Go to http://search.maven.org/ and enter your groupId and artifactId.
Or...
How to UPSERT (MERGE, INSERT … ON DUPLICATE UPDATE) in PostgreSQL?
...t's an EXAMPLE.
BEGIN;
UPDATE testtable
SET somedata = 'blah'
WHERE id = 2;
-- Remember, this is WRONG. Do NOT COPY IT.
INSERT INTO testtable (id, somedata)
SELECT 2, 'blah'
WHERE NOT EXISTS (SELECT 1 FROM testtable WHERE testtable.id = 2);
COMMIT;
then when two run at once there are several f...
Ways to save enums in database
...ame Suit
================== ==========
Shelby Jackson 2
Ian Boyd 1
verses
Name Suit
================== ==========
Shelby Jackson Diamond
Ian Boyd Heart
the latter is much easier. The former required getting at the source code and f...