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pydot and graphviz error: Couldn't import dot_parser, loading of dot files will not be possible
...ble in the PyPI [2].
Cheers
[1] https://pypi.python.org/pypi/pydot2/1.0.32
[2] https://pypi.python.org/pypi/pydot2
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How to copy from CSV file to PostgreSQL table with headers in CSV file?
... @Daniel I understood the user's table already existed and had all the columns they needed and that they wanted to simply ADD data.
– G. Cito
Jul 28 '14 at 16:16
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When and why will a compiler initialise memory to 0xCD, 0xDD, etc. on malloc/free/new/delete?
...----- -------- -------------------------
0xCD Clean Memory Allocated memory via malloc or new but never
written by the application.
0xDD Dead Memory Memory that has been released with delete or free.
It is used to detect w...
How to programmatically send a 404 response with Express/Node?
...on for this on the response object. Just chain it in somewhere before you call send.
res.status(404) // HTTP status 404: NotFound
.send('Not found');
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Difference between exit() and sys.exit() in Python
... mikumiku
153k4141 gold badges276276 silver badges293293 bronze badges
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Extract elements of list at odd positions
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Solution
Yes, you can:
l = L[1::2]
And this is all. The result will contain the elements placed on the following positions (0-based, so first element is at position 0, second at 1 etc.):
1, 3, 5
so the result (actual numbers) will be:
2, 4, 6
Explanation
The [1::2]...
Escaping single quote in PHP when inserting into MySQL [duplicate]
...e it again, the string you get back from the database will not be automatically escaped for you. You'll get back "O'Brien". So, you will need to pass it through mysql_real_escape_string().
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How do I update/upsert a document in Mongoose?
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Mongoose now supports this natively with findOneAndUpdate (calls MongoDB findAndModify).
The upsert = true option creates the object if it doesn't exist. defaults to false.
var query = {'username': req.user.username};
req.newData.username = req.user.username;
MyModel.findOneAndUpd...
Received an invalid column length from the bcp client for colid 6
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Specifically, if you have any columns that are VARCHAR smaller than 4, watch out for NULL in your data getting misinterpreted as the 4char string "NULL"
– CrazyPyro
Feb 11 at 8:13
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Most efficient method to groupby on an array of objects
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Joseph Gravlin
322 bronze badges
answered Jul 12 '16 at 11:25
mortbmortb
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