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Python memory usage of numpy arrays
...is answer still creates an array, so I think you mean "without the need to convert from a list to an array". Although it is true that GWW's answer first creates a list and then converts it to an array, that's beside the point, since the OP already has an array... The point is how to get the size of ...
How to get the size of a string in Python?
... str you should know which encoding your str object is using. Then you can convert it to unicode object and get character count:
>>> print(len('йцы'.decode('utf8'))) #String contains Cyrillic symbols
3
B. The sys.getsizeof() function does the same thing as in Python 3 - it returns co...
Add up a column of numbers at the Unix shell
...files.txt | xargs ls -l | cut -c 23-30 |
awk '{total = total + $1}END{print total}'
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What happens to an open file handle on Linux if the pointed file gets moved or deleted
What happens to an open file handle on Linux if the pointed file meanwhile gets:
7 Answers
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Executing multi-line statements in the one-line command-line?
...r << (the <<-) allows you to use tabs to indent (Stackoverflow converts tabs to spaces, so I've indented 8 spaces to emphasize this). The leading tabs will be stripped.
You can do it without the tabs with just <<:
$ python - << "EOF"
import sys
for r in range(10):
print...
How can I convert JSON to CSV?
I have a JSON file I want to convert to a CSV file. How can I do this with Python?
26 Answers
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Precise Financial Calculation in JavaScript. What Are the Gotchas?
... that the JavaScript lexer reads the string "0.1" from the source and then converts it to a binary floating point and then you already did an unintended rounding. The problem is about representation (binary vs decimal) not about precision.
– mgd
Nov 20 '15 at 1...
NASM x86汇编入门指南 - C/C++ - 清泛网 - 专注C/C++及内核技术
...认的汇编程序编译器，然而，我们这里使用的NASM，采用intel语法，类似于TASM、MASM和其它的DOS汇编工具。(as和gas采用AT&T语法，与intel语法有些不同，例如AT&T语法中，寄存器前面必须加上%前缀，并且源源操作数在目的操作数之前...
Measure the time it takes to execute a t-sql query
...ECLARE @SchemaName SYSNAME;
DECLARE @ProcName SYSNAME=N'TestProc';
SELECT CONVERT(TIME(3),DATEADD(ms,ROUND(last_elapsed_time/1000.0,0),0))
AS LastExecutionTime
FROM sys.dm_exec_procedure_stats
WHERE OBJECT_NAME(object_id,database_id)=@ProcName AND
(OBJECT_SCHEMA_NAME(object_id,databas...
UnicodeDecodeError when redirecting to file
...ed), because their memory comes in byte chunks. The necessary process that converts characters to bytes is called encoding. Thus, a computer requires an encoding in order to represent characters. Any text present on your computer is encoded (until it is displayed), whether it be sent to a terminal...