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Using Pylint with Django
...pylint into the build process for
my python projects, but I have run into one show-stopper: One of the
error types that I find extremely useful--: E1101: *%s %r has no %r
member* --constantly reports errors when using common django fields,
for example:
...
How to find out the number of CPUs using python
...said of "Googling"--- I find from the use of /proc/cpuinfo that if for any one of the listings for each "processor" you multiply the "siblings" by the "cpu cores" you get your "Cpus_allowed" number. And I gather that the siblings refer to hyper-threading, hence your reference to "virtual". But the f...
Python assigning multiple variables to same value? list behavior
...assign them individually. You can either repeat the explicit list, or use one of the numerous ways to copy a list:
b = a[:] # this does a shallow copy, which is good enough for this case
import copy
c = copy.deepcopy(a) # this does a deep copy, which matters if the list contains mutable objects
As...
How can I convert a comma-separated string to an array?
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The map function can be used to do the integer parsing in one line: str.split(',').map(parseInt)
– Jud
Mar 6 '14 at 21:12
1
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Why do I get an UnsupportedOperationException when trying to remove an element from a List?
...
template.split("\\|")
On better algorithm
Instead of calling remove one at a time with random indices, it's better to generate enough random numbers in the range, and then traversing the List once with a listIterator(), calling remove() at appropriate indices. There are questions on stackover...
How can I change the thickness of my tag
...he thickness of my horizontal rule ( <hr> )in CSS. I know it can be done in HTML like so -
9 Answers
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Threads vs Processes in Linux
...ds -- everything is simply a runnable task. *
On Linux, the system call clone clones a task, with a configurable level of sharing, among which are:
CLONE_FILES: share the same file descriptor table (instead of creating a copy)
CLONE_PARENT: don't set up a parent-child relationship between the new...
How does grep run so fast?
...lmost always faster when grepping for a longer pattern-string than a short one, because in a longer pattern, Boyer-Moore can skip forward in longer strides to achieve even better sublinear speeds:
Example:
# after running these twice to ensure apples-to-apples comparison
# (everything is in the bu...
Iterating each character in a string using Python
... Pro tip: it starts from zero. If you need to start it from one: 1 t, 2 e, 3 s, 4 t use the parameter "start": for i, c in enumerate('test', start=1)
– Messa
Apr 21 '17 at 17:45
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How do I force a UITextView to scroll to the top every time I change the text?
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If anyone has this problem in iOS 8, I found that just setting the UITextView's text property, then calling scrollRangeToVisible with an NSRange with location:0, length:0, worked. My text view was not editable, and I tested both se...