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How to open every file in a folder?
...wd()):
with open(os.path.join(os.cwd(), filename), 'r') as f: # open in readonly mode
# do your stuff
Glob
Or you can list only some files, depending on the file pattern using the glob module:
import glob
for filename in glob.glob('*.txt'):
with open(os.path.join(os.cwd(), filename),...
Remove the last three characters from a string
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read last 3 characters from string [Initially asked question]
You can use string.Substring and give it the starting index and it will get the substring starting from given index till end.
myString.Substring(myString.Lengt...
SQL: IF clause within WHERE clause
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@Kash the link you provided is a register-to-read, is there any publicly available documenation that describes what you are saying?
– Steve
Mar 14 '13 at 19:26
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When saving, how can you check if a field has changed?
...requires making alterations to your model, this one does not 3) as you can read in the comments on that answer, it has side-effects that can be potentially problematic, this solution does not
– Chris Pratt
Oct 31 '11 at 22:10
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Unable to simultaneously satisfy constraints, will attempt to recover by breaking constraint
...ier, self.constant];
}
@end
build it once again, and now you have more readable output for you:
once you got your id you can simple tap it in your Find Navigator:
and quickly find it:
HOW TO SIMPLE FIX THAT CASE?
try to change priority to 999 for broken constraint.
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Should I prefer pointers or references in member data?
...at it makes the code easier to write it's that it makes the code easier to read. With a reference as a data member you never have to wonder if it can be null at point of use. This means that you can look at code with less context required.
– Len Holgate
Jan 4 '...
How to set DOM element as the first child?
...nd(newChild) // [newChild, child1, child2]
This is modern JS! It is more readable than previous options. It is currently available in Chrome, FF, and Opera.
The equivalent for adding to the end is append, replacing the old appendChild
parent.append(newChild) // [child1, child2, newChild]
Advance...
Why would introducing useless MOV instructions speed up a tight loop in x86_64 assembly?
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You may want to read http://research.google.com/pubs/pub37077.html
TL;DR: randomly inserting nop instructions in programs can easily increase performance by 5% or more, and no, compilers cannot easily exploit this. It's usually a combinatio...
How to pass a parcelable object that contains a list of objects?
...according to documentation.
products = new ArrayList<Product>();
in.readList(products, Product.class.getClassLoader());
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In Java, is there a way to write a string literal without having to escape quotes?
...ks inside it. You could escape them all, but it's a pain, and difficult to read.
8 Answers
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