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Named regular expression group “(?Pregexp)”: what does “P” stand for?
...or Python. That may sound pretty stupid -- what, P for Python?! -- but in my defense, I vaguely remembered this thread [emphasis mine]:
Subject: Claiming (?P...) regex syntax extensions
From: Guido van Rossum (gui...@CNRI.Reston.Va.US)
Date: Dec 10, 1997 3:36:19 pm
I have an unu...
What is the difference between `sorted(list)` vs `list.sort()`?
...tegers, as we can see here, we've disproven an older list creation expense myth:
Python 2.7
>>> timeit.repeat("next(shuffled_iter).sort()", setup=setup, number = 1000)
[3.75168503401801, 3.7473005310166627, 3.753129180986434]
>>> timeit.repeat("sorted(next(shuffled_iter))", setup...
How to redirect 404 errors to a page in ExpressJS?
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This wasn't working for me, but then I discovered that my app.use(express.static(...)) came after app.use(app.router). Once I switched them it all came out fine.
– Stephen
Nov 4 '11 at 18:23
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How to print VARCHAR(MAX) using Print Statement?
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If you look at my code I am also using the @Pos variable to find the line break and print accordingly. So How could I use that in your code.
– peter
Oct 21 '11 at 14:11
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Replace one substring for another string in shell script
... a bit, the first part has to be a variable reference. You can't do echo ${my string foo/foo/bar}. You'd need input="my string foo"; echo ${input/foo/bar}
– Henrik N
Sep 15 '16 at 7:42
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How exactly does a generator comprehension work?
...its, and yields each item out of the expression, one by one.
>>> my_list = [1, 3, 5, 9, 2, 6]
>>> filtered_list = [item for item in my_list if item > 3]
>>> print(filtered_list)
[5, 9, 6]
>>> len(filtered_list)
3
>>> # compare to generator expression
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How to get the return value from a thread in python?
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@JakeBiesinger My point is, that I was looking for answer, how to get response from Thread, came here, and accepted answer doesn't answer question stated. I differantiate threads and processes. I know about Global Interpreter Lock however I...
Why are hexadecimal numbers prefixed with 0x?
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Note: I don't know the correct answer, but the below is just my personal speculation!
As has been mentioned a 0 before a number means it's octal:
04524 // octal, leading 0
Imagine needing to come up with a system to denote hexadecimal numbers, and note we're working in a C style en...
How can I get the current page's full URL on a Windows/IIS server?
...r. I'm setting up 301 redirects in PHP, but it doesn't seem to be working. My post URLs have the following format:
15 Answe...
How can I see the SQL that will be generated by a given ActiveRecord query in Ruby on Rails
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They moved it to a more sensible place for Rails 3... see my updated version.
– gtd
Apr 7 '11 at 3:08
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