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Python initializing a list of lists [duplicate]
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x.append([]) # appending a new list!
In [20]: x = [[]] * 4
In [21]: [id(i) for i in x]
Out[21]: [164363948, 164363948, 164363948, 164363948] # same id()'s for each list,i.e same object
In [22]: x=[[] for i in range(4)]
In [23]: [id(i) for i in x]
Out[23]: [164382060, 164364140, 164363...
List Git aliases
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answered Mar 4 '14 at 21:36
AcumenusAcumenus
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Altering a column: null to not null
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edited Jun 16 '16 at 21:44
answered Jun 15 '12 at 20:45
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Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)
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answered Aug 26 '14 at 21:24
Casey RobinsonCasey Robinson
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How to reset AUTO_INCREMENT in MySQL?
...ions/2681869/…
– B T
Aug 3 '12 at 21:11
52
this is a circular reference
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What is the difference between `new Object()` and object literal notation?
..."there is no difference".
– dos
May 21 '15 at 0:44
FYI also () new Object() is not required. ( talking about not requi...
Signtool error: No certificates were found that met all given criteria with a Windows Store App?
...icate"?
– Sean Kendle
Mar 15 '16 at 21:50
In my situation the certificate was available from the machine it was origin...
Upload files with HTTPWebrequest (multipart/form-data)
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Add line break to 'git commit -m' from the command line
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answered Feb 21 '11 at 10:12
Simon RichterSimon Richter
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Set icon for Android application
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edited Jan 21 '18 at 7:01
Peter Mortensen
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