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How to know if an object has an attribute in Python

...Exists" The disadvantage here is that attribute errors in the properties __get__ code are also caught. Otherwise, do- if hasattr(someObject, 'someProp'): #Access someProp/ set someProp pass Docs:http://docs.python.org/library/functions.html Warning: The reason for my recommendation is ...
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Bin size in Matplotlib (Histogram)

...width in this example could be found by: (data.max() - data.min()) / number_of_bins_you_want. The + binwidth could be changed to just 1 to make this a more easily understood example. – Jarad Jan 22 '18 at 17:31 ...
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Add Text on Image using PIL

...m PIL import ImageFont from PIL import ImageDraw img = Image.open("sample_in.jpg") draw = ImageDraw.Draw(img) # font = ImageFont.truetype(<font-file>, <font-size>) font = ImageFont.truetype("sans-serif.ttf", 16) # draw.text((x, y),"Sample Text",(r,g,b)) draw.text((0, 0),"Sample Text",(...
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Rails check if yield :area is defined in content_for

...ering at the layout level based on the actual template has defined content_for(:an__area) , any idea how to get this done? ...
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How to set environment variables in Python?

... @darth_coder It's true for all processes on Unix-like operating systems. I don't know about the other operating system. Note that shell variables are not stored in the environment unless you export them. – S...
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I want to get the type of a variable at runtime

...ific type, such as this: val x: Any = 5 def f[T](v: T) = v match { case _: Int => "Int" case _: String => "String" case _ => "Unknown" } f(x) Here it doesn't matter what is the type of the variable, Any. What matters, what is checked is the type of 5, the value. In fact,...
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How do you share code between projects/solutions in Visual Studio?

...sproj) <Compile Include="..\MySisterProject\**\*.cs"> <Link>_Inlined\MySisterProject\%(RecursiveDir)%(Filename)%(Extension)</Link> </Compile> Put in: <Visible>false</Visible> If you want to hide the files and/or prevent the wild-card include being expa...
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Deep copy of a dict in python

...or "license" for more information. >>> import copy >>> my_dict = {'a': [1, 2, 3], 'b': [4, 5, 6]} >>> my_copy = copy.deepcopy(my_dict) >>> my_dict['a'][2] = 7 >>> my_copy['a'][2] 3 >>> ...
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What do the terms “CPU bound” and “I/O bound” mean?

...: #define SIZE 1000000000 unsigned int is[SIZE]; unsigned int sum = 0; size_t i = 0; for (i = 0; i < SIZE; i++) /* Each one of those requires a RAM access! */ sum += is[i] Parallelizing that by splitting the array equally for each of your cores is of limited usefulness on common modern d...
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How to concatenate two MP4 files using FFmpeg?

...puts). ffmpeg -i opening.mkv -i episode.mkv -i ending.mkv \ -filter_complex "[0:v] [0:a] [1:v] [1:a] [2:v] [2:a] concat=n=3:v=1:a=1 [v] [a]" \ -map "[v]" -map "[a]" output.mkv Note that this method performs a re-encode. 2. concat demuxer Use this method wh...