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How do I create a new Git branch from an old commit? [duplicate]
I have a Git branch called jzbranch and have an old commit id: a9c146a09505837ec03b .
1 Answer
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List all virtualenv
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You can use the lsvirtualenv, in which you have two options "long" or "brief":
"long" option is the default one, it searches for any hook you may have around this command and executes it, which takes more time.
"brief" just take the virtualenvs names and prints it.
brief usage:
$ lsvirtuale...
Unpacking a list / tuple of pairs into two lists / tuples [duplicate]
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>>> source_list = ('1','a'),('2','b'),('3','c'),('4','d')
>>> list1, list2 = zip(*source_list)
>>> list1
('1', '2', '3', '4')
>>> list2
('a', 'b', 'c', 'd')
Edit: Note that zip(*iterable) is its own inverse:
>>> list(sou...
How to expand a list to function arguments in Python [duplicate]
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It exists, but it's hard to search for. I think most people call it the "splat" operator.
It's in the documentation as "Unpacking argument lists".
You'd use it like this: foo(*values). There's also one for dictionaries:
d = {'a': 1, ...
How do I fetch a branch on someone else's fork on GitHub? [duplicate]
I've forked from a repo on GitHub. I want to get the code from a branch on another user's fork.
2 Answers
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Android - Round to 2 decimal places [duplicate]
I know that there are plenty of examples on how to round this kind numbers.
But could someone show me how to round double, to get value that I can display as a
String and ALWAYS have 2 decimal places?
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find first sequence item that matches a criterion [duplicate]
What would be the most elegant and efficient way of finding/returning the first list item that matches a certain criterion?
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Correct use of transactions in SQL Server
I have 2 commands and need both of them executed correctly or none of them executed. So I think I need a transaction, but I don't know how to use it correctly.
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What does the 'u' symbol mean in front of string values? [duplicate]
...ct that you're seeing the u means you're on Python 2 - strings are Unicode by default on Python 3, but on Python 2, the u in front distinguishes Unicode strings. The rest of this answer will focus on Python 2.
You can create a Unicode string multiple ways:
>>> u'foo'
u'foo'
>>> uni...
How to merge multiple lists into one list in python? [duplicate]
...'] + ['was'] + ['annoying']
You should read the Python tutorial to learn basic info like this.
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