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python: How do I know what type of exception occurred?
...re except: doesn't give you the exception object to inspect
The exceptions SystemExit, KeyboardInterrupt and GeneratorExit aren't caught by the above code, which is generally what you want. See the exception hierarchy.
If you also want the same stacktrace you get if you do not catch the exception,...
UTF-8 byte[] to String
...ext file into a byte array. I know that I can use the following routine to convert the bytes to a string, but is there a more efficient/smarter way of doing this than just iterating through the bytes and converting each one?
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How to convert wstring into string?
The question is how to convert wstring to string?
16 Answers
16
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Convert List to List
... is to iterate over the list and cast the elements. This can be done using ConvertAll:
List<A> listOfA = new List<C>().ConvertAll(x => (A)x);
You could also use Linq:
List<A> listOfA = new List<C>().Cast<A>().ToList();
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Timeout on a function call
...dless of the Python version:
from __future__ import print_function
import sys
import threading
from time import sleep
try:
import thread
except ImportError:
import _thread as thread
Use version independent code:
try:
range, _print = xrange, print
def print(*args, **kwargs):
...
How to get numbers after decimal point?
...0') % 1
Decimal('0.20')
As kindall notes in the comments, you'll have to convert native floats to strings first.
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Is there a simple way to convert C++ enum to string?
Suppose we have some named enums:
34 Answers
34
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Count work days between two dates
...artDate
--Strip the time element from both dates (just to be safe) by converting to whole days and back to a date.
--Usually faster than CONVERT.
--0 is a date (01/01/1900 00:00:00.000)
SELECT @StartDate = DATEADD(dd,DATEDIFF(dd,0,@StartDate), 0),
@EndDate = DATEADD(d...
How to use PyCharm to debug Scrapy projects
... so accept spider name as an argument of your run config. Then import sys spider = sys.argv[1] cmdline.execute("scrapy crawl {}".format(spider).split())
– miguelfg
Oct 1 '17 at 20:47
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Using boolean values in C
... @rpattiso You're quite right, of course, but I guess I would read !!a as "convert non-boolean a to its equivalent truth value", whereas I'd read !a as "logically invert the boolean variable a". In particular, I'd look for some specific reason the logical inversion was desired.
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