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proper name for python * operator?
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In Ruby and Perl 6 this has been called "splat", and I think most people from those communities will figure out what you mean if you call it that.
The Python tutorial uses the phrase "unpacking argument lists", which is long and des...
How do I pull files from remote without overwriting local files?
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Well, yes, and no...
I understand that you want your local copies to "override" what's in the remote, but, oh, man, if someone has modified the files in the remote repo in some different way, and you just ignore their changes and try t...
How do I disable “missing docstring” warnings at a file-level in Pylint?
Pylint throws errors that some of files are missing docstrings. I try and add docstrings to each class, method and function but it seems that Pylint also checks that files should a docstring at the beginning of it. Can i disable this somehow? I would like to be notified of a docstring is missing ins...
Converting a list to a set changes element order
...at when I am converting a list to set the order of elements is changed and is sorted by character.
11 Answers
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What is the syntax rule for having trailing commas in tuple definitions?
...hen you won't add another line to the end expecting to add another element and instead just creating a valid expression:
a = [
"a",
"b"
"c"
]
Assuming that started as a 2 element list that was later extended it has gone wrong in a perhaps not immediately obvious way. Always include the t...
How can I profile Python code line-by-line?
I've been using cProfile to profile my code, and it's been working great. I also use gprof2dot.py to visualize the results (makes it a little clearer).
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Sankey Diagrams in R?
...jection data
URL <- paste0(
"https://cdn.rawgit.com/christophergandrud/networkD3/",
"master/JSONdata/energy.json")
Energy <- jsonlite::fromJSON(URL)
# Plot
sankeyNetwork(Links = Energy$links, Nodes = Energy$nodes, Source = "source",
Target = "target", Value = "valu...
How to 'insert if not exists' in MySQL?
I started by googling, and found this article which talks about mutex tables.
10 Answers
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Simple way to repeat a String in java
...te this using a for loop, but I wish to avoid for loops whenever necessary and a simple direct method should exist somewhere.
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Why doesn't the example compile, aka how does (co-, contra-, and in-) variance work?
...r. This declaration as a whole means that Function1 is contravariant in P and covariant in R. Thus, we can derive the following axioms:
T1' <: T1
T2 <: T2'
---------------------------------------- S-Fun
Function1[T1, T2] <: Function1[T1', T2']
Notice that T1' must be a subtype (or the ...