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DistutilsOptionError: must supply either home or prefix/exec-prefix — not both
...up.cfg file at the root directory of your project, usually where your main __init__.py or executable py file is. So if the root folder of your project is: /path/to/my/project/, create a setup.cfg file in there and put the magic words inside:
[install]
prefix=
OK, now you sould be able to run ...
Does Redis persist data?
...from disk. Or is it always a blank store which is only to store data while apps are running with no persistence?
5 Answers
...
How to solve the error LNK2019: unresolved external symbol - function?
...l but have not declared that class itself as import/export.
#ifdef MYDLL_EXPORTS
#define DLLEXPORT __declspec(dllexport)
#else
#define DLLEXPORT __declspec(dllimport)
#endif
class DLLEXPORT Book // <--- this class must also be declared as export/import
{
public:
Book();
...
Referring to a file relative to executing script
..., because $0 itself is unreliable.
As an alternative, you could use $BASH_SOURCE instead. Something like this:
source "${BASH_SOURCE%/*}/act.conf.sh"
There are some caveats to this solution, too. Check out the FAQ page to see the trade-offs between different solutions. They seem to recommend cd...
Wait for all promises to resolve
... Can you show us your code (maybe ask a new question)? Are there items appended to the chain after Q.all was executed - otherwise it should be trivial?
– Bergi
Feb 13 '14 at 18:46
...
iPhone: Setting Navigation Bar Title
... the title of a navBar inside a tabBar controller, do this:
-(void)viewDidAppear:(BOOL)animated {
self.navigationController.navigationBar.topItem.title = @"myTitle";
}
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Inline instantiation of a constant List
...n List<T>.
private static readonly ReadOnlyCollection<string> _metrics =
new ReadOnlyCollection<string>(new[]
{
SourceFile.LOC,
SourceFile.MCCABE,
SourceFile.NOM,
SourceFile.NOA,
SourceFile.FANOUT,
...
Razor view engine, how to enter preprocessor(#if debug)
... it in my views like so:
<section id="sidebar">
@Html.Partial("_Connect")
@if (!Html.IsDebug())
{
@Html.Partial("_Ads")
}
<hr />
@RenderSection("Sidebar", required: false)
</section>
Since the helper is compiled with the DEBUG/RELEASE symb...
How to convert a number to string and vice versa in C++
...5).
string to numeric
float stof(const string& str, size_t *idx = 0);
double stod(const string& str, size_t *idx = 0);
long double stold(const string& str, size_t *idx = 0);
int stoi(const string& str, size_t *idx = 0, int base = 10);
...
How to return a string value from a Bash function
...iable with the string you want to return.
#!/bin/bash
set -x
function pass_back_a_string() {
eval "$1='foo bar rab oof'"
}
return_var=''
pass_back_a_string return_var
echo $return_var
Prints "foo bar rab oof".
Edit: added quoting in the appropriate place to allow whitespace in string to add...