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Make sure only a single instance of a program is running
...ode version is available singleton.py. Please file bugs here.
You can install tend using one of the following methods:
easy_install tendo
pip install tendo
manually by getting it from http://pypi.python.org/pypi/tendo
sh...
How do you allow spaces to be entered using scanf?
...
People (and especially beginners) should never use scanf("%s") or gets() or any other functions that do not have buffer overflow protection, unless you know for certain that the input will always be of a specific format (and perhaps not even t...
How to set UICollectionViewDelegateFlowLayout?
...and this will only work if self.collectionView.collectionViewLayout is actually set to your flow layout. (or set with initWithFrame:collectionViewLayout:)
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Add text to Existing PDF using Python
...is the best way to go about this and what extra modules will I need to install.
8 Answers
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How can I pad an int with leading zeros when using cout
...ormatted output to a string (char* or char[]) not to console directly. Actually I am writing a function that returns formatted string
– shashwat
Dec 23 '12 at 9:32
14
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Can a variable number of arguments be passed to a function?
...able to pass any number of arguments.
def manyArgs(*arg):
print "I was called with", len(arg), "arguments:", arg
>>> manyArgs(1)
I was called with 1 arguments: (1,)
>>> manyArgs(1, 2, 3)
I was called with 3 arguments: (1, 2, 3)
As you can see, Python will unpack the arguments...
Recursion or Iteration?
...n if the recursive function is tail recursive (the last line is recursive call). Tail recursion should be recognized by the compiler and optimized to its iterative counterpart (while maintaining the concise, clear implementation you have in your code).
I would write the algorithm in the way that m...
Can I stop 100% Width Text Boxes from extending beyond their containers?
...t padding/border in ‘px’ you think browsers will give the input. (Typically 6px for IE<8.)
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How can I force division to be floating point? Division keeps rounding down to 0?
... a floating point number in Python in the following?
c = a / b
What is really being asked here is:
"How do I force true division such that a / b will return a fraction?"
Upgrade to Python 3
In Python 3, to get true division, you simply do a / b.
>>> 1/2
0.5
Floor division, the classic di...
plot a circle with pyplot
...nd the axes (but not beyond the figure, ie the figure size is not automatically adjusted to plot all of your artists).
The units for x, y and radius correspond to data units by default. In this case, I didn't plot anything on my axes (fig.gca() returns the current axes), and since the limits have n...