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Edit the root commit in Git?
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Assuming that you have a clean working tree, you can do the following.
# checkout the root commit
git checkout <sha1-of-root>
# amend the commit
git commit --amend
# rebase all the other commits in master onto the amended root
git rebase --onto HEAD HEAD master
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How do I know the script file name in a Bash script?
...eading through a symlink1, which is usually not what you want (you usually don't want to confuse the user this way), try:
me="$(basename "$(test -L "$0" && readlink "$0" || echo "$0")")"
IMO, that'll produce confusing output. "I ran foo.sh, but it's saying I'm running bar.sh!? Must be a...
How can I pretty-print JSON in a shell script?
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With Python 2.6+ you can just do:
echo '{"foo": "lorem", "bar": "ipsum"}' | python -m json.tool
or, if the JSON is in a file, you can do:
python -m json.tool my_json.json
if the JSON is from an internet source such as an API, you can use
curl htt...
How do I get the name of captured groups in a C# Regex?
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The cleanest way to do this is by using this extension method:
public static class MyExtensionMethods
{
public static Dictionary<string, string> MatchNamedCaptures(this Regex regex, string input)
{
var namedCaptureDictiona...
How do I rotate the Android emulator display? [duplicate]
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Windows: left Ctrl + F12
Mac: Fn + Ctrl + F12
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Python assigning multiple variables to same value? list behavior
...ve types, identities, addresses, and all kinds of stuff like that.
Names don't have any of that. Values do, of course, and you can have lots of names for the same value.
If you give Notorious B.I.G. a hot dog,* Biggie Smalls and Chris Wallace have a hot dog. If you change the first element of a t...
Using python map and other functional tools
...efinition of bars, this principle is broken.
– image_doctor
Jul 10 '13 at 13:22
3
Dear Stack over...
Assigning code to a variable
...f arguments just like any other method, but for the sake of simplicity, it doesn't).
Now, let's use what we have; we will define the delegate just as we define any other variable:
ButtonClick ButtonClicked = new ButtonClick(OnButtonClick);
We basically created a new variable called ButtonClic...
Why is there no xrange function in Python3?
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Some performance measurements, using timeit instead of trying to do it manually with time.
First, Apple 2.7.2 64-bit:
In [37]: %timeit collections.deque((x for x in xrange(10000000) if x%4 == 0), maxlen=0)
1 loops, best of 3: 1.05 s per loop
Now, python.org 3.3.0 64-bit:
In [83]: %tim...
How do I get a value of datetime.today() in Python that is “timezone aware”?
...to create aware timezones without creating your own timezone class.
On Windows, there's win32timezone.utcnow(), but that's part of pywin32. I would rather suggest to use the pytz library, which has a constantly updated database of most timezones.
Working with local timezones can be very tricky (se...