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What is the pythonic way to avoid default parameters that are empty lists?
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def my_func(working_list=None):
if working_list is None:
working_list = []
working_list.append("a")
print(working_list)
The docs say you should use None as the default and explicitly test for it in the body of the function.
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Get generic type of java.util.List
...recommend using TypeToken from Guava. github.com/google/guava/wiki/ReflectionExplained
– Babyburger
May 15 '17 at 13:58
1
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How does akka compare to Erlang? [closed]
...ort it, but
it's less flexible because of JVM
classloading
Those are the ones from the top of my head.
On the other hand, using Akka means that you can use Scala, Java, Groovy or JRuby to write your applications.
share
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Node.js quick file server (static files over HTTP)
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npx http-server - npx turns it into a one-liner that downloads the necessary files and runs it.
– Mike McKay
Nov 13 '18 at 18:19
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Find element's index in pandas Series
...ate handling
In [5]: Index([1,1,2,2,3,4]).get_loc(2)
Out[5]: slice(2, 4, None)
Will return a boolean array if non-contiguous returns
In [6]: Index([1,1,2,1,3,2,4]).get_loc(2)
Out[6]: array([False, False, True, False, False, True, False], dtype=bool)
Uses a hashtable internally, so fast
In [...
How to call Stored Procedure in Entity Framework 6 (Code-First)?
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For one off situations, this would work great. I find that the SProc definition should be tightly coupled with the class that inherits from DBContext, instead of out in the "wheat fields" of the product.
– ...
How to paste yanked text into the Vim command line
...ny Ex commands, works only linewise.
cf. :help :put
You could also have done: :call setreg('"', @", 'V') then p. The setreg function sets the register of which the name is given as first argument (as a string), initializes it with the contents of the second argument (and you can use registers as v...
Find object in list that has attribute equal to some value (that meets any condition)
I've got list of objects. I want to find one (first or whatever) object in this list that has attribute (or method result - whatever) equal to value .
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How can I disable the UITableView selection?
...or me, I tried to use cell.selectionStyle = UITableViewCellSelectionStyleNone; but it didn't work. One thing to note: it should be: tableView.allowsSelection = NO; not false.
– tony.tc.leung
May 21 '10 at 18:26
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unique object identifier in javascript
...member) when using a for..in loop. This is a well documented practice and one that is enforced by jslint
– Justin Johnson
Jan 4 '10 at 23:01
3
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