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Pip freeze vs. pip list
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When you are using a virtualenv, you can specify a requirements.txt file to install all the dependencies.
A typical usage:
$ pip install -r requirements.txt
The packages need to be in a specific format for pip to understand, which is
feedparser==5.1.3
wsgiref==0.1.2
django==1.4.2
......
Commands executed from vim are not recognizing bash command aliases
...m having problems -- if I enable interactive mode(the i flag), then I can execute my aliased shell commands fine, but as soon as commands are done executing, vim exits which is undesirable. Ex, I tried doing :!ls with shellcmdflag=-ic: [4]+ Stopped vi ~/.vimrc
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Bring element to front using CSS
...how to bring images to front using CSS . I've already tried setting z-index to 1000 and position to relative, but it still fails.
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UnboundLocalError on local variable when reassigned after first use
The following code works as expected in both Python 2.5 and 3.0:
12 Answers
12
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Why does Python pep-8 strongly recommend spaces over tabs for indentation?
...r team's, or your team leaders.
But if I may give you one advice: don't mix'em ;-) [ed: Mixing tabs and spaces is no longer an option.]
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Is “IF” expensive?
I can't, for the life of me, remember what exactly our teacher said that day and I'm hoping you would probably know.
16 Ans...
Disable/turn off inherited CSS3 transitions
... transition: none;
}
JS Fiddle demo.
Tested with Chromium 12, Opera 11.x and Firefox 5 on Ubuntu 11.04.
The specific adaptation to Opera is the use of -o-transition: color 0 ease-in; which targets the same property as specified in the other transition rules, but sets the transition time to 0, w...
How do I keep track of pip-installed packages in an Anaconda (Conda) environment?
...f pip was installed with conda).
You can see how this works by using the export tool used for migrating an environment:
conda env export -n <env-name> > environment.yml
The file will list both conda packages and pip packages:
name: stats
channels:
- javascript
dependencies:
- pytho...
What does the C++ standard state the size of int, long type to be?
... size is always 1 byte, or CHAR_BIT bits (hence the name). This is stated explicitly in the standard.
The C standard is a normative reference for the C++ standard, so even though it doesn't state these requirements explicitly, C++ requires the minimum ranges required by the C standard (page 22), whi...
How to inspect the return value of a function in GDB?
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I imagine there are better ways to do it, but the finish command executes until the current stack frame is popped off and prints the return value -- given the program
int fun() {
return 42;
}
int main( int argc, char *v[] ) {
fun();
return 0;
}
You can debug it as such --
(...