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How to implement common bash idioms in Python? [closed]
...go overboard. Replace what you need and evolve your "grep" module. Don't start out writing a Python module that replaces "grep".
The best thing is that you can do this in steps.
Replace AWK and PERL with Python. Leave everything else alone.
Look at replacing GREP with Python. This can be a bit ...
What are the differences between type() and isinstance()?
...h introduces a generalization of it, was accepted and has been implemented starting with Python 2.6 and 3.0.
The PEP makes it clear that, while ABCs can often substitute for duck typing, there is generally no big pressure to do that (see here). ABCs as implemented in recent Python versions do howev...
string c_str() vs. data()
...g::substr could internally hold a reference to shared string data, and the start/end range, avoiding the copy (and additional allocation) of the actual string data. The implementation would defer the copy until you call c_str or modify any of the strings. No copy would ever be made if the strigns in...
How do I add a library project to Android Studio?
... and those from screenshots, but the process is very similar).
Before you start adding a library to your project by hand, consider adding the external dependency. It won’t mess in your project structure. Almost every well-known Android library is available in a Maven repository and its installati...
When should I use a trailing slash in my URL?
...s processed. Everything worked quite good until now, but that entire thing starts to feel slower and you investigate.
Soon, you'll notice that /dvd/list is doing exactly the same: Redirecting to /dvd/list/ which is then internally translated into index.php?controller=dvd&action=list. One additi...
Compute a confidence interval from sample data
...
Starting Python 3.8, the standard library provides the NormalDist object as part of the statistics module:
from statistics import NormalDist
def confidence_interval(data, confidence=0.95):
dist = NormalDist.from_samples(d...
Refreshing OAuth token using Retrofit without modifying all calls
... case. in Request authenticate(...) method: - do any initalization stuff - start synchronized block ( synchronized(MyAuthenticator.class) { ... } ) - in that block retrieve current access & refresh token - check if failed request was using latest access token (resp.request().header("Authorizatio...
Extract elements of list at odd positions
...notation for list slicing. Usually it is in the following form:
some_list[start:stop:step]
If we omitted start, the default (0) would be used. So the first element (at position 0, because the indexes are 0-based) would be selected. In this case the second element will be selected.
Because the se...
How can I keep Bootstrap popovers alive while being hovered?
... basically overrides Popover leave function, but calls the original (which starts timer to hide the popover). Then it attaches a one-off listener to mouseenter popover content element's.
If mouse enters the popover, the timer is cleared. Then it turns it listens to mouseleave on popover and if it's...
Scala actors: receive vs react
...ave only recently become interested in functional languages. Recently I've started looking at Scala, which seems like a very nice language.
...