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Test if executable exists in Python?
In Python, is there a portable and simple way to test if an executable program exists?
21 Answers
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Read an Excel file directly from a R script
...http://strawberryperl.com/). There are various caveats, and alternatives, listed on the R wiki page.
The only reason I see not to do this directly is that you may want to examine the spreadsheet to see if it has glitches (weird headers, multiple worksheets [you can only read one at a time, although...
Why are C++ inline functions in the header?
NB This is not a question about how to use inline functions or how they work, more why they are done the way they are.
8 An...
Find location of a removable SD card
Is there an universal way to find the location of an external SD card?
22 Answers
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How to join int[] to a character separated string in .NET?
... result = string.Join(",", ints.Select(x => x.ToString()).ToArray());
is equivalent to:
var result = string.Join(",", ints);
EDIT:
I see several solutions advertise usage of StringBuilder. Someone complaints that Join method should take an IEnumerable argument.
I'm going to disappoint you ...
CSS - Expand float child DIV height to parent's height
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edited Oct 31 '18 at 14:36
itsmysterybox
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Best way to handle list.index(might-not-exist) in python?
I have code which looks something like this:
12 Answers
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How to get the input from the Tkinter Text Widget?
...es to the normal .get() function. If we have a text box myText_Box, then this is the method for retrieving its input.
def retrieve_input():
input = self.myText_Box.get("1.0",END)
The first part, "1.0" means that the input should be read from line one, character zero (ie: the very first charac...
How do I parse command line arguments in Bash?
Say, I have a script that gets called with this line:
37 Answers
37
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A positive lambda: '+[]{}' - What sorcery is this? [duplicate]
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Yes, the code is standard conforming. The + triggers a conversion to a plain old function pointer for the lambda.
What happens is this:
The compiler sees the first lambda ([]{}) and generates a closure object according to §5.1.2. As the l...