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How I can I lazily read multiple JSON values from a file/stream in Python?
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20
Here's a much, much simpler solution. The secret is to try, fail, and use the information in th...
How to convert a NumPy array to PIL image applying matplotlib colormap
...st ensure your NumPy array, myarray, is normalised with the max value at 1.0.
Apply the colormap directly to myarray.
Rescale to the 0-255 range.
Convert to integers, using np.uint8().
Use Image.fromarray().
And you're done:
from PIL import Image
from matplotlib import cm
im = Image.fromarray(np....
Exit Shell Script Based on Process Exit Code
...ble so you would have something like:
ls -al file.ext
rc=$?; if [[ $rc != 0 ]]; then exit $rc; fi
You need to be careful of piped commands since the $? only gives you the return code of the last element in the pipe so, in the code:
ls -al file.ext | sed 's/^/xx: /"
will not return an error cod...
How do I use vi keys in ipython under *nix?
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In case someone's wandering in here recently, IPython 5.0 switched from readline to prompt_toolkit, so an updated answer to this question is to pass an option:
$ ipython --TerminalInteractiveShell.editing_mode=vi
... or to set it globally in the profile configuration (~/.ipytho...
How do I get the name of captured groups in a C# Regex?
...oupName in regex.GetGroupNames())
{
Console.WriteLine(
"Group: {0}, Value: {1}",
groupName,
groups[groupName].Value);
}
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How to get a vertical geom_vline to an x-axis of class date?
...a time series from and would like to draw a vertical line for years 1998, 2005 and 2010 for example. I tried with ggplot and qplot syntax, but still I either see no vertical line at all or the vertical line is drawn at the very first vertical grid and the whole series is shifted somewhat strange...
Can a for loop increment/decrement by more than one?
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Use the += assignment operator:
for (var i = 0; i < myVar.length; i += 3) {
Technically, you can place any expression you'd like in the final expression of the for loop, but it is typically used to update the counter variable.
For more information about each step ...
FragmentPagerAdapter Exists Only In Android.Support.V4.App (and not Android.App)
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202
There is one that is in android.support.v13.app.FragmentPagerAdapter, which should do what you ...
How to see which flags -march=native will activate?
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10
I'm going to suggest that this is suboptimal. The output of --help=target doesn't display CPU cache information, of which the methods both e...
onTouchListener warning: onTouch should call View#performClick when a click is detected
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