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gem install: Failed to build gem native extension (can't find header files)
...t installed properly.
Below is the command to get rid of the issue.
xcode-select --install
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How do I programmatically change file permissions?
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selecting this one as I don't have the ability to use Marty Lamb's answer.
– Roy Rico
Mar 20 '09 at 0:44
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Filter dataframe rows if value in column is in a set list of values [duplicate]
...id 7
9 1980-01-10 9 Jones 4
There are multiple ways of selecting or slicing the data.
Using .isin
The most obvious is the .isin feature. You can create a mask that gives you a series of True/False statements, which can be applied to a dataframe like this:
mask = df['STK_ID'].isin...
Get $_POST from multiple checkboxes
...e of echo(ing) one check_list[] checkbox? (And would it be similar for two selected?) Thanks.
– James Andrew
Feb 14 '11 at 21:09
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How to debug a bash script? [closed]
...says:
-x
Print a trace of simple commands, for commands, case commands, select commands, and arithmetic for commands and their arguments or associated word lists after they are expanded and before they are executed. The value of the PS4 variable is expanded and the resultant value is printed befo...
How do I create a new Swift project without using Storyboards?
... new project in XCode 6 doesn't allow to disable Storyboards. You can only select Swift or Objective-C and to use or not Core Data.
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Python time measure function
....time() - start
return ret, elapsed
timed(lambda: database.foo.execute('select count(*) from source.apachelog'))
(<sqlalchemy.engine.result.ResultProxy object at 0x7fd6c20fc690>, 4.07547402381897)
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Expression Versus Statement
...abeled_statement
| compound_statement
| expression_statement
| selection_statement
| iteration_statement
| jump_statement
;
expression_statement
: ';'
| expression ';'
;
http://www.lysator.liu.se/c/ANSI-C-grammar-y.html
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Iterate over model instance field names and values in template
I'm trying to create a basic template to display the selected instance's field values, along with their names. Think of it as just a standard output of the values of that instance in table format, with the field name (verbose_name specifically if specified on the field) in the first column and the ...
How can I resize an image using Java?
...f 200 pixels wide and 200 pixels tall and by default it will automatically select the best-looking and fastest approach for that since it wasn't specified.
I realize on the outset this looks like self-promotion (it is), but I spent my fair share of time googling this exact same subject and kept com...