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How can I save an image with PIL?
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147
The error regarding the file extension has been handled, you either use BMP (without the dot) ...
StringIO in Python3
I am using Python 3.2.1 and I can't import the StringIO module. I use
io.StringIO and it works, but I can't use it with numpy 's genfromtxt like this:
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How to check for an undefined or null variable in JavaScript?
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edited Jun 18 '19 at 3:43
cutmancometh
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Optimizing away a “while(1);” in C++0x
...as necessary to allow?
Yes, Hans Boehm provides a rationale for this in N1528: Why undefined behavior for infinite loops?, although this is WG14 document the rationale applies to C++ as well and the document refers to both WG14 and WG21:
As N1509 correctly points out, the current draft essenti...
How to resize images proportionally / keeping the aspect ratio?
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18 Answers
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C++ unordered_map using a custom class type as the key
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510
To be able to use std::unordered_map (or one of the other unordered associative containers) wit...
Class with Object as a parameter
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114
In Python2 this declares Table to be a new-style class (as opposed to "classic" class).
In Pyt...
How big is too big for a PostgreSQL table?
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118
Rows per a table won't be an issue on it's own.
So roughly speaking 1 million rows a day for ...
count number of lines in terminal output
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491
Pipe the result to wc using the -l (line count) switch:
grep -Rl "curl" ./ | wc -l
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