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Bulk insert with SQLAlchemy ORM
...a small degree of ORM-based automation.
The example below illustrates time-based tests for several different
methods of inserting rows, going from the most automated to the least.
With cPython 2.7, runtimes observed:
classics-MacBook-Pro:sqlalchemy classic$ python test.py
SQLAlchemy ORM: T...
How to calculate the CPU usage of a process by PID in Linux from C?
...ber of major faults
cmaj_flt number of major faults with child's
utime user mode jiffies
stime kernel mode jiffies
cutime user mode jiffies with child's
cstime kernel mode jiffies with child's
You're probably after utime and/or stime. You'll also need ...
Why would anyone use set instead of unordered_set?
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Or sometimes when you only want to iterate, even if the order doesn't matter.
– mfnx
Jan 1 at 10:21
add a c...
angular.service vs angular.factory
...angular is helping you manage a singleton. Regardless of where or how many times you inject your service or function, you will get the same reference to the same object or function. (With the exception of when a factory simply returns a value like a number or string. In that case, you will always ge...
How to insert text at beginning of a multi-line selection in vi/Vim
... normal mode) restores the last visual selection, this comes in handy from time to time.
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How to use phpexcel to read data and insert into database?
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getHighestColumn() returns 255 every time. Replacing it with getHighestDataColumn() fixes the problem. Here's more info: stackoverflow.com/questions/15903471/…
– Martin Dzhonov
May 20 '15 at 16:34
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How Big can a Python List Get?
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Timing this way can be misleading -- most of the time is spent starting up the Python interpreter. A better way is: python -m timeit.py "l=range(12000); l=sorted(l, reverse=True)". On my machine this gives about 1/20th of the time for this example.
– d...
Switching from zsh to bash on OSX, and back again?
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There are times when I want to use zsh and other times when it interferes with what I want to do. Setting the default back and forth is a bad idea so this is the perfect solution!!! kudos!!
– Bob Roberts
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How do I apply the for-each loop to every character in a String?
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@RAnders00 So, in this case toCharArray( ) is called 3 times?
– denvercoder9
Aug 26 '16 at 15:31
1
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How to strip all whitespace from string
...goal—writing clear code is—here are some initial timings:
$ python -m timeit '"".join(" \t foo \n bar ".split())'
1000000 loops, best of 3: 1.38 usec per loop
$ python -m timeit -s 'import re' 're.sub(r"\s+", "", " \t foo \n bar ")'
100000 loops, best of 3: 15.6 usec per loop
Note the regex i...