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Reading a huge .csv file
... dataframes for later concatenation
df_lst = []
# Iterate over the file based on the criteria and append to the list
for df_ in df_iter:
tmp_df = (df_.rename(columns={col: col.lower() for col in df_.columns}) # filter eg. rows where 'col_1' value grater than one
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linux tee is not working with python?
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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Cropping an UIImage
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You can make a UIImage category and use it wherever you need. Based on HitScans response and comments bellow it.
@implementation UIImage (Crop)
- (UIImage *)crop:(CGRect)rect {
rect = CGRectMake(rect.origin.x*self.scale,
rect.origin.y*self.scale,
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cancelling queued performSelector:afterDelay calls
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Select between two dates with Django
... Is the "created_at" an arbitrary field in a model or is this the databases actual log of when the record was created?
– Bigbob556677
Mar 2 '18 at 14:22
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Add and Remove Views in Android Dynamically?
...n you write an XML layout, it is just parsed in Java and views are created based on it during the run-time!
– Davide Cannizzo
Jan 27 '18 at 17:02
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How can I play sound in Java?
...ounds/effects/sheep1.wav");
sounds/effects/sheep1.wav was located in the base directory of my project in Eclipse (so not inside the src folder).
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Using Razor within JavaScript
Is it possible or is there a workaround to use Razor syntax within JavaScript that is in a view ( cshtml )?
12 Answers
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Faster s3 bucket duplication
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It supports non-concurrent sync based on file modified time, size, etc. It was blazing fast when I tried it. I believe the objects are copied directly on S3 without downloading them to the local machine. It doesn't run in parallel by default but I'm sure yo...
How to run multiple DOS commands in parallel?
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