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3

but it's three statements rather than one expression
– fortran
Commented Oct 18, 2011 at 15:44
17

Yes! The mentioned one-expression-solutions are either slow or evil. Good code is readable and maintainable. So the problem is the question not the answer. We should ask for the best solution of a problem not for a one-line-solution.
– phobie
Commented Oct 28, 2011 at 3:36
11

Lose the z4 = {} and change the next line to z4 = x.copy() -- better than just good code doesn't do unnecessary things (which makes it even more readable and maintainable).
– martineau
Commented Mar 8, 2013 at 15:10
3

Your suggestion would change this to Matthews answer. While his answer is fine, I think mine is more readable and better maintainable. The extra line would only be bad if it would cost execution time.
– phobie
Commented May 6, 2013 at 11:50
I suggest you put this into a function
– Corman
Commented Jun 14, 2020 at 23:16

| Show 2 more comments

Correct minor typos or mistakes
Clarify meaning without changing it
Add related resources or links
Always respect the author’s intent
Don’t use edits to reply to the author

create code fences with backticks ` or tildes ~
```
like so
```
add language identifier to highlight code
```python
def function(foo):
print(foo)
```
put returns between paragraphs
for linebreak add 2 spaces at end
_italic_ or **bold**
indent code by 4 spaces
backtick escapes `like _so_`
quote by placing > at start of line
to make links (use https whenever possible)
<https://example.com>
[example](https://example.com)
<a href="https://example.com">example</a>

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