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Reading a huge .csv file
...200 columns (files range from 100mb to 1.6gb). I can do this (very slowly) for the files with under 300,000 rows, but once I go above that I get memory errors. My code looks like this:
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Creating a singleton in Python
This question is not for the discussion of whether or not the singleton design pattern is desirable, is an anti-pattern, or for any religious wars, but to discuss how this pattern is best implemented in Python in such a way that is most pythonic. In this instance I define 'most pythonic' to mean tha...
/usr/lib/libstdc++.so.6: version `GLIBCXX_3.4.15' not found
... This lame error has been tormenting CENTOS/Ubuntu/Linux users for a while now. And why exactly the developers of these OSs did not bother with a fix or an update?? Thanks for the fix btw :)!
– roosevelt
Oct 7 '13 at 1:00
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Very Long If Statement in Python [duplicate]
...next logical line needs to have different indentation to your code block.
For example:
if (abcdefghijklmnopqrstuvwxyz > some_other_long_identifier and
here_is_another_long_identifier != and_finally_another_long_name):
# ... your code here ...
pass
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What's the best UI for entering date of birth? [closed]
What is the best method for date of birth selector?
24 Answers
24
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How to make the 'cut' command treat same sequental delimiters as one?
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No need for cat here. You could pass < text.txt directly to tr. en.wikipedia.org/wiki/Cat_%28Unix%29#Useless_use_of_cat
– arielf
Aug 9 '14 at 20:10
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Print in one line dynamically
... But flush does not work with from __future__ import print_function unfortunately.
– Timmmm
Apr 27 '18 at 14:19
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PHP equivalent of .NET/Java's toString()
...the casting operators:
$myText = (string)$myVar;
There are more details for string casting and conversion in the Strings section of the PHP manual, including special handling for booleans and nulls.
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How do I use prepared statements in SQlite in Android?
...s answer can have so many votes. SQLIteStatement#execute shouldn't be used for Sql queries, only statements. Please check developer.android.com/reference/android/database/sqlite/…
– simao
Feb 14 '11 at 0:55
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How to smooth a curve in the right way?
...imate the point in the center of the window. Finally the window is shifted forward by one data point and the process repeats. This continues until every point has been optimally adjusted relative to its neighbors. It works great even with noisy samples from non-periodic and non-linear sources.
Here...