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What's the algorithm to calculate aspect ratio?
...(self.width / common) + ':' + str(self.height / common)
self.ratio_error = 0
# Special case: ratio is not well behaved
if not self.ratio in accepted_ratios:
lesser_error = 999
lesser_index = -1
my_ratio_normalized = float(self.width) / flo...
gdb: how to print the current line or find the current line number?
...prints a set of lines, but I need one single line, where I am and where an error has probably occurred.
5 Answers
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How to detect when facebook's FB.init is complete
The old JS SDK had a function called FB.ensureInit. The new SDK does not seem to have such function... how can I ensure that I do not make api calls until it is fully initiated?
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Logical operators for boolean indexing in Pandas
...as Series do not have a boolean value -- in other words, they raise
ValueError: The truth value of an array is ambiguous. Use a.empty, a.any() or a.all().
when used as a boolean value. That's because its unclear when it should be True or False. Some users might assume they are True if they have ...
Regex to get string between curly braces
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@meouw sa = s.split("/\{([^}]+)\}/"); gives a compile error. illegal repetition, invalid escape character.
– likejudo
Dec 26 '12 at 0:22
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Docker - a way to give access to a host USB or serial device?
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205
There are a couple of options. You can use the --device flag that use can use to access USB dev...
How to exit from Python without traceback?
...t to catch -- like SystemExit -- and it can also mask your own programming errors. My example above is silly, unless you're doing something in terms of cleanup. You could replace it with:
import sys
sys.exit(1) # Or something that calls sys.exit().
If you need to exit without raising SystemExit:
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Why can't I make a vector of references?
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Indeed, this is the "actual" reason. The error about T* being impossible of T is U& is just a side-effect of the violated requirement that T must be assignable. If vector was able to precisely check the type parameter, then it would probably say "violated requir...
What does the JSLint error 'body of a for in should be wrapped in an if statement' mean?
I used JSLint on a JavaScript file of mine. It threw the error:
8 Answers
8
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Is there a way to simulate the C++ 'friend' concept in Java?
I would like to be able to write a Java class in one package which can access non-public methods of a class in another package without having to make it a subclass of the other class. Is this possible?
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