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A non-blocking read on a subprocess.PIPE in Python
...us IO -- asyncio module.
The approach is similar to twisted-based answer by @Bryan Ward -- define a protocol and its methods are called as soon as data is ready:
#!/usr/bin/env python3
import asyncio
import os
class SubprocessProtocol(asyncio.SubprocessProtocol):
def pipe_data_received(self,...
pandas read_csv and filter columns with usecols
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The answer by @chip completely misses the point of two keyword arguments.
names is only necessary when there is no header and you want to specify other arguments using column names rather than integer indices.
usecols is supposed to p...
Dark color scheme for Eclipse [closed]
...ork on all the other windows, which now BLAST with their white backgrounds by comparison.
– SMBiggs
Jun 11 '12 at 5:43
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Why isn't textarea an input[type=“textarea”]?
...ld be a different type not tag. There are different types of input denoted by different values of type attribute of input tag and they all share one and the same input tag. So no, this quote is not an answer to this question.
– Piotr Dobrogost
Dec 10 '15 at 15:...
Maximum concurrent Socket.IO connections
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This is a good clean answer.. Also correct as it is case by case.. Personally i suggest ppl write their own benchmarks or connection simulator. While a test for someone else might be good, it does not represent the real world environment... Once you have a client simulator capable ...
Can lambda functions be templated?
...morphic Lambdas will be in C++14, at least they are in the Community Draft by now :)
– Arne Mertz
May 8 '13 at 5:42
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How do I interpret precision and scale of a number in a database?
...50 (p=6,s=0) => out of range
Note that the range is generally defined by the precision: |value| < 10^p ...
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CMake: Project structure with unit tests
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It's automatically set by CMake when calling project (TEST) - see cmake.org/cmake/help/v3.6/variable/PROJECT-NAME_SOURCE_DIR.html
– Fraser
Jul 22 '16 at 14:08
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Visual Studio debugger - Displaying integer values in Hex
... decimal display on a per-variable basis in the Visual Studio watch window by appending a debugger format specifier to the variable name. In the watch window, enter:
myInt,h
myInt,d
The other very useful format specifiers are ac (see footnote) for 'always calculate', and nq for displaying with 'n...
Does MySQL foreign_key_checks affect the entire database?
...I wouldn't want anybody else to be able to override the foreign key checks by default during that upgrade. So I'd make millions of queries and I wondered if a SET would be significant or not?
– Aki
Jan 13 '14 at 15:01
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