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How bad is shadowing names defined in outer scopes?
...s NameError if you didn't have a global name data.
Also remember that in Python everything is an object (including modules, classes and functions) so there's no distinct namespaces for functions, modules or classes. Another scenario is that you import function foo at the top of your module, and us...
Check if all elements in a list are identical
...l1 stops as soon as a difference is found.
Since checkEqual1 contains more Python code, it is less efficient when many of the items are equal in the beginning.
Since checkEqual2 and checkEqual3 always perform O(N) copying operations, they will take longer if most of your input will return False.
For...
Getting the SQL from a Django QuerySet [duplicate]
...write sql query for retrieve value from the table.
– Python Team
Nov 17 '14 at 7:10
add a com...
What is the difference between Sublime text and Github's Atom [closed]
...aScript/HTML/CSS.
Sublime Text is a commercial product, built on C/C++ and Python.
Comparable to Atom is Adobe Brackets, another open source text editor/IDE built on JavaScript/HTML/CSS. Be minded that this makes Brackets more oriented towards Web development, specially in the front end.
Advantages ...
Designing function f(f(n)) == -n
...
How about:
f(n) = sign(n) - (-1)n * n
In Python:
def f(n):
if n == 0: return 0
if n >= 0:
if n % 2 == 1:
return n + 1
else:
return -1 * (n - 1)
else:
if n % 2 == 1:
return n - 1
...
Django dump data for a single model?
...
Take all data into json format from django model.
Syntax:
python manage.py dumpdata app_name.model_name
For example dumping data from group_permission model which reside in default auth app in django.
python manage.py dumpdata auth.group_permission
For output take a look on con...
Is there a built-in function to print all the current properties and values of an object?
...
unpythonic, because follows not-invented-here
– user3850
Oct 10 '08 at 17:31
16
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Can IntelliJ IDEA encapsulate all of the functionality of WebStorm and PHPStorm through plugins? [cl
...ate, you are welcome to report it and we'll consider adding it.
While PHP, Python and Ruby IDEA plug-ins are built from the same source code as used in PhpStorm, PyCharm and RubyMine, product release cycles are not synchronized. It means that some features may be already available in the lighter pro...
What is the best way to repeatedly execute a function every x seconds?
I want to repeatedly execute a function in Python every 60 seconds forever (just like an NSTimer in Objective C). This code will run as a daemon and is effectively like calling the python script every minute using a cron, but without requiring that to be set up by the user.
...
How to identify whether a file is normal file or directory
How do you check whether a file is a normal file or a directory using python?
7 Answers
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