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python multithreading wait till all threads finished
This may have been asked in a similar context but I was unable to find an answer after about 20 minutes of searching, so I will ask.
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Why should hash functions use a prime number modulus?
...ought a data structures book off the bargain table for $1.25. In it, the explanation for a hashing function said that it should ultimately mod by a prime number because of "the nature of math".
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Python “SyntaxError: Non-ASCII character '\xe2' in file”
... got a stray byte floating around. You can find it by running
with open("x.py") as fp:
for i, line in enumerate(fp):
if "\xe2" in line:
print i, repr(line)
where you should replace "x.py" by the name of your program. You'll see the line number and the offending line(s). ...
Find and kill a process in one line using bash and regex
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In bash, you should be able to do:
kill $(ps aux | grep '[p]ython csp_build.py' | awk '{print $2}')
Details on its workings are as follows:
The ps gives you the list of all the processes.
The grep filters that based on your search string, [p] is a trick to stop you pi...
Getting vertical gridlines to appear in line plot in matplotlib
...ame from an sql query in python to generate a line plot with dates on the x-axis. I'm not sure why they do not appear on the dates and I have tried to search for an answer to this but couldn't find one.
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How to define “type disjunction” (union types)?
...pecific case of Any*, this trick below won't work, as it will not accept mixed types. However, since mixed types wouldn't work with overloading either, this may be what you want.
First, declare a class with the types you wish to accept as below:
class StringOrInt[T]
object StringOrInt {
implicit...
Moq mock method with out specifying input parameter
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You can use It.IsAny<T>() to match any value:
mockInvoice.Setup(x => x.IsInFinancialYear(It.IsAny<FinancialYearLookup>())).Returns(true);
See the Matching Arguments section of the quick start.
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LINQ - Convert List to Dictionary with Value as List
... the following
List<MyObject> list = ...;
var map = list
.GroupBy(x => x.KeyedProperty)
.ToDictionary(x => x.Key, x => x.ToList());
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How do browser cookie domains work?
...ge onto your questions, the following should apply:
Cookie with Domain=.example.com will be available for www.example.com
Cookie with Domain=.example.com will be available for example.com
Cookie with Domain=example.com will be converted to .example.com and thus will also be available for www.examp...
Bash script prints “Command Not Found” on empty lines
...h
Enter your path to bash if it is not /bin/bash
Try running:
dos2unix script.sh
That wil convert line endings, etc from Windows to unix format. i.e. it strips \r (CR) from line endings to change them from \r\n (CR+LF) to \n (LF).
More details about the dos2unix command (man page)
Anoth...