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Results tagged with python
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user 79256
Python is a dynamically typed, high-level interpreted programming language. Its design focuses on clear syntax, an intuitive approach to object-oriented programming, and making the right way to do things obvious. Python supports modules and exceptions, and has an extensive standard module library. Python is general-purpose and thus used widely, from the web to embedded systems.
1
vote
Accepted
Python function (or set of functions) as input of a function or class
Functions are perfectly normal objects in Python, so the answer is yes. …
- 3,360
1
vote
Why does string.find("") = 0?
When you use string.find(somesubstring) and it returns an index i, not equal to -1, that means that the substring of string starting at index i and having the same length as somesubstring is equal to …
- 3,360
2
votes
Django urls.py runs only once. Why? How does it call views on next request?
Python runs a module when it is imported, and after that it is just kept in memory. Django can access the urlpatterns variable in the module whenever it once, the module isn't re-run. … That's not specific to Django or urls.py, it's just how Python modules work. …
- 3,360
13
votes
Is colon in python blocks technically necesary?
Guido van Rossum (creator of Python) had a Python history blog for a while. The colon was introduced in ABC, the source of many of Python's features. …
- 3,360
2
votes
Why does Python only make a copy of the individual element when iterating a list?
This was the main reason that it look a long time for it to get implemented in Python, as Python developers were afraid it would be confusing. …
- 3,360
4
votes
Does this code follow duck typing?
First, I want to say that by far not everybody agrees that duck typing is a good thing at all, let alone that it is some sort of holy principle that should be followed. Often duck typing leads to erro …
- 3,360
1
vote
Django: caching properties for non-changing entries
Django includes a cached_property utility; it turns your method into a property (can be read as if it were an attribute), but after the first time the method is run, it is replaced by its return value …
- 3,360