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Reuse a parameter in String.format?
Does the hello variable need to be repeated multiple times in the call to the format method or is there a shorthand version that lets you specify the argument once to be applied to all of the %s tokens?
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Can I embed a custom font in an iPhone application?
...plist, you can use your custom fonts as any other font in IB or programatically.
There is an ongoing thread on Apple Developer Forums:
https://devforums.apple.com/thread/37824 (login required)
And here's an excellent and simple 3 steps tutorial on how to achieve this (broken link removed)
Add y...
Setting default values for columns in JPA
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Actually it is possible in JPA, although a little bit of a hack using the columnDefinition property of the @Column annotation, for example:
@Column(name="Price", columnDefinition="Decimal(10,2) default '100.00'")
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Arduino Sketch upload issue - avrdude: stk500_recv(): programmer is not responding
...it works. I figured the packets were some attempt at a hand-shake. So basically, I solved it using Google, patience and futzing around with the board!
– hoipolloi
Jan 12 '14 at 18:16
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How to convert list of tuples to multiple lists?
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xs, ys = [x for x, y in zs], [y for x, y in zs]
return xs, ys
if __name__ == '__main__':
from timeit import timeit
setup_string='''\
N = 2000000
xs = list(range(1, N))
ys = list(range(N+1, N*2))
zs = list(zip(xs, ys))
from __main__ import t1, t2, t3
'''
print(f'zip:\t\t{timeit(...
Finding the source code for built-in Python functions?
...out what file a particular module or function is implemented in you can usually print the __file__ attribute. Alternatively, you may use the inspect module, see the section Retrieving Source Code in the documentation of inspect.
For built-in classes and methods this is not so straightforward since ...
What are the differences between -std=c++11 and -std=gnu++11?
...oid extensions because I don't recommend doing anything that isn't specifically defined by the Standard... but even then, "violates" is a strange and loaded term, when a lot of these extensions are, to use Standardese, just implementation-defining or specifying things that the Standard is silent on ...
When to use cla(), clf() or close() for clearing a plot in matplotlib?
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They all do different things, since matplotlib uses a hierarchical order in which a figure window contains a figure which may consist of many axes. Additionally, there are functions from the pyplot interface and there are methods ...
How do I pass extra arguments to a Python decorator?
... it needs to return another function which is the actual decorator:
def my_decorator(param):
def actual_decorator(func):
print("Decorating function {}, with parameter {}".format(func.__name__, param))
return function_wrapper(func) # assume we defined a wrapper somewhere
ret...
Gridview with two columns and auto resized images
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Basically, in Android's ImageView class, there's no way to simply specify "hey, keep a square aspect ratio (width / height) for this view" unless you hard code width and height. You could do some manual adjustment of LayoutParams ...