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Accessing items in an collections.OrderedDict by index
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It's a new era and with Python 3.6.1 dictionaries now retain their order. These semantics aren't explicit because that would require BDFL approval. But Raymond Hettinger is the next best thing (and funnier) and he makes a pretty strong case that dictionaries will be ordered ...
How to check status of PostgreSQL server Mac OS X
...o get them to take effect, remember to source it like so:
$ . ~/.bashrc
Now, try it and you should get something like this:
$ show-pg-status
pg_ctl: server is running (PID: 11030)
/usr/local/Cellar/postgresql/9.2.4/bin/postgres
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Converting datetime.date to UTC timestamp in Python
...eturn (td.microseconds + (td.seconds + td.days * 86400) * 10**6) / 10**6
now = datetime.utcnow()
print now
print totimestamp(now)
Beware of floating-point issues.
Output
2012-01-08 15:34:10.022403
1326036850.02
How to convert an aware datetime object to POSIX timestamp
assert dt.tzinfo is n...
how to calculate binary search complexity
... formula this would be this:
1 = N / 2x
multiply by 2x:
2x = N
now do the log2:
log2(2x) = log2 N
x * log2(2) = log2 N
x * 1 = log2 N
this means you can divide log N times until you have everything divided. Which means you have to divide log N ("do the bin...
Using python's eval() vs. ast.literal_eval()?
...a situation with some code where eval() came up as a possible solution. Now I have never had
to use eval() before but, I have come across plenty of information about the potential
danger it can cause. That said, I'm very wary about using it.
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How do I generate random integers within a specific range in Java?
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This would return a value in the range [0,5), where 5 is not included.
Now you need to shift this range up to the range that you are targeting. You do this by adding the Min value.
Min + (Math.random() * (Max - Min))
You now will get a value in the range [Min,Max). Following our example, that...
How to stage only part of a new file with git?
I love git add --interactive . It is now part of my daily workflow.
5 Answers
5
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Is it possible to specify a starting number for an ordered list?
... would like the initial number to be 6. I found that this was supported (now deprecated) in HTML 4.01. In this specification they say that you can specify the starting integer by using CSS. (instead of the start attribute)
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Git Diff with Beyond Compare
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As @pClass mentions below, "bc3" is now an internal tool in newer versions of git. You should use a unique name, such as "beyondcompare3"
– Scott Wegner
Oct 26 '12 at 16:46
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Explain how finding cycle start node in cycle linked list work?
...he loop length. After mu additional steps past the meeting point, you are now at X_(i + mu). But we have shown that X_(i + mu) = X_(mu + i) = X_mu, because of this special property of i, so mu steps past the meeting point must take you to X_mu, the start of the cycle. Basically modular arithmetic,...