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Replace first occurrence of pattern in a string [duplicate]
...PU which is unnecessary for this case. Consider solution below which uses IndexOf if performance is a consideration.
– Tongfa
Apr 4 '18 at 16:58
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How can I list all the deleted files in a Git repository?
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This shows only files in the index that have been deleted in the working copy. The OP wants all files that have ever been deleted.
– Max Nanasy
Sep 25 '12 at 20:58
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What are some (concrete) use-cases for metaclasses?
...a couple functions I found that I was able to increment the figure count, call draw manually, etc, but I needed to do these before and after every plotting call. So to create both an interactive plotting wrapper and an offscreen plotting wrapper, I found it was more efficient to do this via metacla...
Test if a vector contains a given element
...with which if you just want to find the elements not in Tset? You can just index pop directly; pop[!pop%in%Tset]
– Houshalter
Feb 20 '17 at 23:11
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What is the purpose of the -m switch?
Could you explain to me what the difference is between calling
3 Answers
3
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Convert Django Model object to dict with all of the fields intact
How does one convert a Django Model object to a dict with all of its fields? All ideally includes foreign keys and fields with editable=False .
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Is it ever advantageous to use 'goto' in a language that supports loops and functions? If so, why?
...o this already):
Cleanly exiting a function
Often in a function, you may allocate resources and need to exit in multiple places. Programmers can simplify their code by putting the resource cleanup code at the end of the function, and all "exit points" of the function would goto the cleanup label....
Is there a replacement for unistd.h for Windows (Visual C)?
...nsole program written for Unix to the Windows platform ( Visual C++ 8.0 ). All the source files include "unistd.h", which doesn't exist. Removing it, I get complaints about misssing prototypes for 'srandom', 'random', and 'getopt'.
I know I can replace the random functions, and I'm pretty sure I ca...
Understanding the difference between __getattr__ and __getattribute__
...oesn't explicitly manage and do that via __getattr__ method.
Python will call this method whenever you request an attribute that hasn't already been defined, so you can define what to do with it.
A classic use case:
class A(dict):
def __getattr__(self, name):
return self[name]
a = A()...
Extract first item of each sublist
...hon includes a function called itemgetter to return the item at a specific index in a list:
from operator import itemgetter
Pass the itemgetter() function the index of the item you want to retrieve. To retrieve the first item, you would use itemgetter(0). The important thing to understand is th...