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How to create PDF files in Python [closed]
I'm working on a project which takes some images from user and then creates a PDF file which contains all of these images.
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Concatenate text files with Windows command line, dropping leading lines
...ely large text files, and would prefer to do this via the command line. Unfortunately I only have Windows, and cannot install new software.
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How can the Euclidean distance be calculated with NumPy?
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Use numpy.linalg.norm:
dist = numpy.linalg.norm(a-b)
You can find the theory behind this in Introduction to Data Mining
This works because Euclidean distance is l2 norm and the default value of ord parameter in numpy.linalg.norm is 2.
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How to implement custom JsonConverter in JSON.NET to deserialize a List of base class objects?
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Using the standard CustomCreationConverter, I was struggling to work how to generate the correct type (Person or Employee), because in order to determine this you need to analyse the JSON and there is no built in way to do this using the Create method.
I found a discussion thread pertaini...
How to obtain Signing certificate fingerprint (SHA1) for OAuth 2.0 on Android?
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Start an export process to create an apk for your app and use your production key. The very last page displays both your SHA1 and MD5 certificate fingerprints
s...
How can I undo git reset --hard HEAD~1?
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Pat Notz is correct. You can get the commit back so long as it's been within a few days. git only garbage collects after about a month or so unless you explicitly tell it to remove newer blobs.
$ git init
Initialized empty Git reposito...
How to pass arguments to addEventListener listener function?
...was created.
Check if the alert gives you the value you've been looking for, be sure it will be accessible in the scope of anonymous function (unless you have more code that operates on the same someVar variable next to the call to addEventListener)
var someVar;
someVar = some_other_function();
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How can I get a list of all classes within current module in Python?
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Try this:
import sys
current_module = sys.modules[__name__]
In your context:
import sys, inspect
def print_classes():
for name, obj in inspect.getmembers(sys.modules[__name__]):
if inspect.isclass(obj):
print(ob...
Programmatically relaunch/recreate an activity?
...very elegant solution, but it's a simple way to restart your activity and force it to reload everything.
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Linux command: How to 'find' only text files?
...grep -Iq . {} \; -print
The -I option to grep tells it to immediately ignore binary files and the . option along with the -q will make it immediately match text files so it goes very fast. You can change the -print to a -print0 for piping into an xargs -0 or something if you are concerned about sp...