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Format number as fixed width, with leading zeros [duplicate]
...veral solutions to this.
One of them is to use sprintf. This uses C style formatting codes embedded in a character string to indicate the format of any other arguments passed to it. For example, the formatting code %3d means format a number as integer of width 3:
a <- seq(1,101,25)
sprintf("na...
Why does C++11 not support designated initializer lists as C99? [closed]
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Please show a reference link for what you say is the reason for C++ to not have designated initializers. I can't remember having ever seen the proposal for it.
– Johannes Schaub - litb
Sep 11 '13 at 19:38
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Resolving ambiguous overload on function pointer and std::function for a lambda using +
In the following code, the first call to foo is ambiguous, and therefore fails to compile.
1 Answer
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What is the use of “assert” in Python?
...nning the assert with a (condition, message) tuple as first parameter.
As for disabling them, when running python in optimized mode, where __debug__ is False, assert statements will be ignored. Just pass the -O flag:
python -O script.py
See here for the relevant documentation.
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Mediator Vs Observer Object-Oriented Design Patterns
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I was looking for this word "Single Responsibility principle".
– stdout
Nov 28 '16 at 12:45
add a comment
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What is a plain English explanation of “Big O” notation?
I'd prefer as little formal definition as possible and simple mathematics.
41 Answers
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How do I replace whitespaces with underscore?
...eplace whitespace with underscore in a string to create nice URLs. So that for example:
13 Answers
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Subprocess changing directory
...cess named parameter cwd which changes the working directory immediately before executing a subprocess.
For example, to execute ls in the root directory, you either can do
wd = os.getcwd()
os.chdir("/")
subprocess.Popen("ls")
os.chdir(wd)
or simply
subprocess.Popen("ls", cwd="/")
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Referencing system.management.automation.dll in Visual Studio
...it was Microsoft owned, then (in an ideal world) they would be responsible for keeping it updated, releasing new packages, etc.
– Ben Randall
Feb 5 '16 at 19:24
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How do I find which rpm package supplies a file I'm looking for?
As an example, I am looking for a mod_files.sh file which presumably would come with the php-devel package. I guessed that yum would install the mod_files.sh file with the php-devel x86_64 5.1.6-23.2.el5_3 package, but the file appears to not to be installed on my filesystem.
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