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How do I update a Python package?
I'm running Ubuntu 9:10 and a package called M2Crypto is installed (version is 0.19.1). I need to download, build and install the latest version of the M2Crypto package (0.20.2).
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How to force Chrome's script debugger to reload javascript?
I really like the ability to edit javascript in the chrome debugger however, I find that it can be really problematic getting the debugger to re-fetch the JavaScript from the server.
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How do I get the row count of a pandas DataFrame?
...[0].count()", "len(data.index)"],
xlabel="data rows"
)
EDIT: As @Dan Allen noted in the comments len(df.index) and df[0].count() are not interchangeable as count excludes NaNs,
share
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improve...
How to create a printable Twitter-Bootstrap page
... type="text/css" media="print" href="print.css">
or one you share for all devices:
<link rel="stylesheet" type="text/css" href="bootstrap.min.css"> # Note there's no media attribute
Then, you can write your styles for printers in the separate stylesheets or in the shared one using medi...
Build a Basic Python Iterator
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Iterator objects in python conform to the iterator protocol, which basically means they provide two methods: __iter__() and __next__().
The __iter__ returns the iterator object and is implicitly called
at the start of loops.
The __next__() method returns the next value and is implicitly cal...
Show SOME invisible/whitespace characters in Eclipse
A long while back I transitioned to doing all my web application development in Eclipse from BBEdit. But I miss one little feature from BBEdit. I used to be able to show invisible characters like tabs but not show other invisibles like spaces. I know that I can bulk turn all of these on in Eclipse, ...
How to use filter, map, and reduce in Python 3
... longer return lists:
[...]
map() and filter() return iterators. If you really need a list, a quick fix is e.g. list(map(...)), but a better fix is often to use a list comprehension (especially when the original code uses lambda), or rewriting the code so it doesn’t need a list at all. Particular...
How do I get the Git commit count?
...):
git rev-list --count <revision>
To get the commit count across all branches:
git rev-list --all --count
I recommend against using this for build identifier, but if you must, it's probably best to use the count for the branch you're building against. That way the same revision will alw...
Java 8: Where is TriFunction (and kin) in java.util.function? Or what is the alternative?
...ctive function are, you
can handle now infinite arguments, which is especially convenient for streams, and you can just leave arguments open.
So if you again want to see what would the result be like if x := 1 and y := 1 , y := 2 , y := 3 , you can say h = g(1) and
h(1) is the result for y := 1, h...
How can I push a specific commit to a remote, and not previous commits?
... commits, not to be confused with the top, first, or tip commit, which are all ambiguous descriptions in my opinion. The commit needs to the oldest of your commits, i.e. the furthest from your most recent commit. If it's not the oldest commit then all commits from your oldest, local, non-pushed SHA ...