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How can I convert a dictionary into a list of tuples?
...d not use iteritems (which no longer exists), but instead use items, which now returns a "view" into the dictionary items. See the What's New document for Python 3.0, and the new documentation on views.
1: Insertion-order preservation for dicts was added in Python 3.7
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MySQL - Get row number on select
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Do you by chance know why using @r := @r + 1 in a select statement works, but if it's in a stored procedure with declare r int; set r = 0;, it complains (on r := r +1)?
– Dan M.
Dec 17 '16 at 17:03
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Can I use if (pointer) instead of if (pointer != NULL)?
...rived_ptr != nullptr) { ... }
(or, preferrably, auto derived_ptr = ...). Now, this is bad, because it leaves the (possibly invalid, i.e. null) derived pointer outside of the safety-guarding if block's scope. This isn't necessary, as C++ allows you to introduce boolean-convertable variables inside ...
How to redirect the output of a PowerShell to a file during its execution
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@richard: it appears to do so now. Maybe this is a 2.0 addition, not sure if these answers all apply to 1.0.
– Robert S Ciaccio
Dec 15 '10 at 20:43
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Installing a dependency with Bower from URL and specify version
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Just an update.
Now if it's a github repository then using just a github shorthand is enough if you do not mind the version of course.
GitHub shorthand
$ bower install desandro/masonry
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Split a string by spaces — preserving quoted substrings — in Python
...e regex, so I don't feel like trying to solve it using your solution right now.
– leetNightshade
Jul 23 '13 at 0:00
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How do I call a JavaScript function on page load?
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And now when I'm dynamically including a server-generated page and need DOM-readiness, I need to work through this minefield. If only someone would have encouraged properly library user earlier.
– Stefan Ken...
Delete all the queues from RabbitMQ?
...itmq: rabbitmqctl list_queues name messages messages_ready \ messages_unacknowledged
– Guillaume Vincent
Oct 19 '13 at 13:32
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SQLite error 'attempt to write a readonly database' during insert?
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As I know, the containing folder must be writable because when writing a journaling file will be created and so the db itself. To have the same user as the webserver, try copy the content of file to another created ad hoc.
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Remove columns from dataframe where ALL values are NA
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dplyr now has a select_if verb that may be helpful here:
library(dplyr)
temp <- data.frame(x = 1:5, y = c(1,2,NA,4, 5), z = rep(NA, 5))
not_all_na <- function(x) any(!is.na(x))
not_any_na <- function(x) all(!is.na(x))
&g...