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How to create a temporary directory and get the path / file name in Python
...t be sure to remove (shutil.rmtree) the directory because it's not automatically deleted after use. "The user of mkdtemp() is responsible for deleting the temporary directory and its contents when done with it." See: docs.python.org/2/library/tempfile.html#tempfile.mkdtemp
– Ni...
How do I create a class instance from a string name in ruby?
...space is known ahead of time and highlights the fact that const_get can be called on modules directly as opposed to exclusively on Object.
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Database development mistakes made by application developers [closed]
...te or technical primary keys are those that have absolutely no meaning outside the system. They are invented purely for identifying the entity and are typically auto-incrementing fields (SQL Server, MySQL, others) or sequences (most notably Oracle).
In my opinion you should always use surrogate ke...
How do I wrap a selection with an HTML tag in Visual Studio?
...<Snippet>
<Declarations>
<Literal>
<ID>selected</ID>
<ToolTip>content</ToolTip>
<Default>content</Default>
</Literal>
</Declarations>
<Code Language="html"><![CDATA[<ul>&l...
int value under 10 convert to string two digit number
...ng)
{
return number.ToString(GetPaddingSequence(padding));
}
Finally call the function FormatNumber
string x = FormatNumber(1,2);
Output will be 01 which is based on your padding parameter. Increasing it will increase the number of 0s
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csv.Error: iterator should return strings, not bytes
...
You open the file in text mode.
More specifically:
ifile = open('sample.csv', "rt", encoding=<theencodingofthefile>)
Good guesses for encoding is "ascii" and "utf8". You can also leave the encoding off, and it will use the system default encoding, which tend...
Read data from SqlDataReader
...r the firstt column on the table. I have a table with 3 columns in order: ID, Dir, Email. My command selects dir and email. Will reader.GetStrting(0) retrieve dir or ID? Are the indexes based off the table itself on SQL Server or off the query you executed to select columns from a table?
...
What columns generally make good indexes?
...re I am attempting to learn about indexes, what columns are good index candidates? Specifically for an MS SQL database?
12 ...
Calculating width from percent to pixel then minus by pixel in LESS CSS
...ou happen to know how I could divide an unkown width of a container (let's call it div.categories) into 4 equal parts, using LESS?
– Shawn Spencer
Feb 10 '15 at 19:13
5
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Python Pandas merge only certain columns
...ge selected columns from two tables.
If table_1 contains t1_a,t1_b,t1_c..,id,..t1_z columns,
and table_2 contains t2_a, t2_b, t2_c..., id,..t2_z columns,
and only t1_a, id, t2_a are required in the final table, then
mergedCSV = table_1[['t1_a','id']].merge(table_2[['t2_a','id']], on = 'id',how = '...