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Truncating floats in Python
...yond the desired number of characters. The latter step is easy; it can be done either with string manipulation
i, p, d = s.partition('.')
'.'.join([i, (d+'0'*n)[:n]])
or the decimal module
str(Decimal(s).quantize(Decimal((0, (1,), -n)), rounding=ROUND_DOWN))
The first step, converting to a str...
Cache Invalidation — Is there a General Solution?
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What you are talking about is lifetime dependency chaining, that one thing is dependent on another which can be modified outside of it's control.
If you have an idempotent function from a, b to c where, if a and b are the same then c is the same but the cost of checking b is high then you...
Localization and internationalization, what's the difference?
... (i18n)the process of changing your software so that it isn't hardwired to one language/locale/culture.
Localization (l10n)the process of adding the appropriate resources to your software so that a particular language/locale is supported. It's bigger in scope than just this Wikipedia entry, but it...
How do I disable a Pylint warning?
I'm trying to disable warning C0321 ("more than one statement on a single line" -- I often put if statements with short single-line results on the same line), in Pylint 0.21.1 (if it matters: astng 0.20.1, common 0.50.3, Python 2.6.6 (r266:84292, Sep 15 2010, 16:22:56)).
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Is it possible to modify variable in python that is in outer, but not global, scope?
...ave two python tips that are simple, but very helpful: yours is the second one :) Thanks @kindall!
– swdev
Sep 22 '14 at 23:35
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converting CSV/XLS to JSON? [closed]
Does anyone know if there is application that will let me convert preferably XLS to JSON?
10 Answers
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Upgrade python packages from requirements.txt using pip command
... I found helpful to do the following. 1. Deleted venv 2. Created a new one with the same name (the way to clean all pip packages) 3. Replace all == to >= in the requirements.txt 4. pip install -r requirements.txt 4.
– zhukovgreen
Jul 28 '17 at 5:17
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advantage of tap method in ruby
..., discard any variable definitions made in the process once the block has done its job. And should there be just one method called on the object, you can write User.new.tap &:foobar
– Boris Stitnicky
Jul 5 '13 at 17:21
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Advantages of stateless programming?
...een learning about functional programming (specifically Haskell, but I've gone through tutorials on Lisp and Erlang as well). While I found the concepts very enlightening, I still don't see the practical side of the "no side effects" concept. What are the practical advantages of it? I'm trying to t...
Naming conventions: “State” versus “Status” [closed]
... FooStatus". Is there a convention discussed out there? Should we only use one? If so which one, and if not, how should we choose?
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