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How to compile and run C/C++ in a Unix console/Mac terminal?
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This is the command that works on all Unix machines... I use it on Linux/Ubuntu, but it works in OS X as well. Type the following command in Terminal.app.
$ g++ -o lab21 iterative.cpp
-o is the letter O not zero
lab21 will be your executable file
iterative.cpp is your c++ file
After y...
Read an Excel file directly from a R script
...to have Perl installed on your system -- usually already true on MacOS and Linux, but takes an extra step on Windows, i.e. see http://strawberryperl.com/). There are various caveats, and alternatives, listed on the R wiki page.
The only reason I see not to do this directly is that you may want to e...
Python base64 data decode
I have the following piece of base64 encoded data, and I want to use python base64 module to extract information from it. It seems that module does not work. Can anyone tell me how?
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Command line progress bar in Java
... Is this really cross-platform ? It will probably behave ok on Windows and Linux, but what about Macs ? I don't have one, so I can't try it...
– Radu Murzea
Jun 8 '13 at 15:04
3
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How to get a complete list of object's methods and attributes?
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That is why the new __dir__() method has been added in python 2.6
see:
http://docs.python.org/whatsnew/2.6.html#other-language-changes (scroll down a little bit)
http://bugs.python.org/issue1591665
sh...
Clang vs GCC - which produces faster binaries? [closed]
... comparison is appended to that.
I maintain an OSS tool that is built for Linux with both GCC and Clang,
and with Microsoft's compiler for Windows. The tool, coan, is a preprocessor
and analyser of C/C++ source files and codelines of such: its
computational profile majors on recursive-descent par...
How do I return multiple values from a function? [closed]
...;>> p.x, p.y
1 2
>>> p[0], p[1]
1 2
In recent versions of Python 3 (3.6+, I think), the new typing library got the NamedTuple class to make named tuples easier to create and more powerful. Inheriting from typing.NamedTuple lets you use docstrings, default values, and type annotation...
What is Node.js? [closed]
...Script) on a VM that is incredibly fast (V8). It is much faster than Ruby, Python, or Perl.
Ability to handle thousands of concurrent connections with minimal overhead on a single process.
JavaScript is perfect for event loops with first class function objects and closures. People already know how t...
jsonify a SQLAlchemy result set in Flask [duplicate]
I'm trying to jsonify a SQLAlchemy result set in Flask/Python.
15 Answers
15
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Dynamic instantiation from string name of a class in dynamically imported module?
In python, I have to instantiate certain class, knowing its name in a string, but this class 'lives' in a dynamically imported module. An example follows:
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