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Is it possible to prevent an NSURLRequest from caching data or remove cached data following a reques
...or days and finally tried to prevent caching since a lot of CFURL* objects from the internal framework were hanging around. Returning nil from willCacheResponse was the only thing that worked!
– Bron Davies
Sep 30 '10 at 19:37
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Remove an item from a dictionary when its key is unknown
What is the best way to remove an item from a dictionary by value, i.e. when the item's key is unknown? Here's a simple approach:
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How to send email via Django?
...her use an external service like Sendgrid, or you can follow this tutorial from Google to reduce security but allow this option: https://support.google.com/accounts/answer/6010255
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Calling a class function inside of __init__
...def parse_file(self):
#do some parsing
self.stat1 = result_from_parse1
self.stat2 = result_from_parse2
self.stat3 = result_from_parse3
self.stat4 = result_from_parse4
self.stat5 = result_from_parse5
replace your line:
parse_file()
with:
self.par...
Numpy: Get random set of rows from 2D array
... random ~25% of the positions will be True and those positions are sampled from data_arr.
– isosceleswheel
Jul 24 at 3:05
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How do I choose between Tesseract and OpenCV? [closed]
...ngine. It's used, worked on and funded by Google specifically to read text from images, perform basic document segmentation and operate on specific image inputs (a single word, line, paragraph, page, limited dictionaries, etc.).
OpenCV, on the other hand, is a computer vision library that includes f...
Send file using POST from a Python script
Is there a way to send a file using POST from a Python script?
8 Answers
8
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How to change the type of a field?
I am trying to change the type of a field from within the mongo shell.
14 Answers
14
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How to convert Strings to and from UTF8 byte arrays in Java
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Convert from String to byte[]:
String s = "some text here";
byte[] b = s.getBytes(StandardCharsets.UTF_8);
Convert from byte[] to String:
byte[] b = {(byte) 99, (byte)97, (byte)116};
String s = new String(b, StandardCharsets.US_A...
Call an activity method from a fragment
Trying to call a method in my activity from a fragment. I want the fragment to give the method data and to get the data when the method return. I want to achieve similar to call on a static method, but without the use of static because it create problems in the activity.
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