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How to print a dictionary's key?
...You have the keys() method, which gives you a python list of all the keys, and you have the iteritems() method, which returns key-value pairs, so
for key, value in mydic.iteritems() :
print key, value
Python 3 version:
for key, value in mydic.items() :
print (key, value)
So you have a ...
Instantiate and Present a viewController in Swift
I started taking a look of the new Swift on Xcode 6 , and I tried some demo projects and tutorials. Now I am stuck at:
1...
Chrome Dev Tools: How to trace network for a link that opens a new tab?
...pens when I click on a link. The problem is that the link opens a new tab, and apparently the Dev Tools works per tab it was open for. "Preserve Log Upon Navigation" does not help.
...
How To Test if Type is Primitive
...at we can think that are primitives, but they aren´t, for example Decimal and String.
Edit 1: Added sample code
Here is a sample code:
if (t.IsPrimitive || t == typeof(Decimal) || t == typeof(String) || ... )
{
// Is Primitive, or Decimal, or String
}
Edit 2: As @SLaks comments, there are ...
Command prompt won't change directory to another drive
I'm trying to compile some java (learning java currently), and to do so I need to change command-prompt's directory (using javac).
...
How do I test if a variable is a number in Bash?
... the regex appropriately; for instance:
^[0-9]+([.][0-9]+)?$
...or, to handle numbers with a sign:
^[+-]?[0-9]+([.][0-9]+)?$
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How can I apply a function to every row/column of a matrix in MATLAB?
...
Many built-in operations like sum and prod are already able to operate across rows or columns, so you may be able to refactor the function you are applying to take advantage of this.
If that's not a viable option, one way to do it is to collect the rows or c...
Convert two lists into a dictionary
...onary)
{'a': 1, 'b': 2, 'c': 3}
Voila :-) The pairwise dict constructor and zip function are awesomely useful: https://docs.python.org/3/library/functions.html#func-dict
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Timeout on a function call
I'm calling a function in Python which I know may stall and force me to restart the script.
18 Answers
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Indenting #defines
...re-ANSI C preprocessor did not allow for space between the start of a line and the "#" character; the leading "#" had to always be placed in the first column.
Pre-ANSI C compilers are non-existent these days. Use which ever style (space before "#" or space between "#" and the identifier) you prefer...