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Two versions of python on linux. how to make 2.7 the default
I've got two versions of python on my linuxbox:
6 Answers
6
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C++特化模板函数的符号多重定义错误问题 - C/C++ - 清泛网 - 专注C/C++及内核技术
C++特化模板函数的符号多重定义错误问题error LNK2005: "void __stdcall SerializeElements<class CLogEvent> ...fatal error LNK1169: 找到一个或多个多重定义的符号.我...特化模板函数SerializeElements时，报重复定义的错误，如下：
error LNK2005: "void __std...
How do I view the SQL generated by the Entity Framework?
... above dll
– Mahesh
Oct 22 '14 at 7:05
57
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PHP + curl, HTTP POST sample code?
...he response
* @return string
* @throws \RuntimeException On cURL error
*/
public function __invoke(array $post)
{
$ch = curl_init($this->url);
foreach ($this->options as $key => $val) {
curl_setopt($ch, $key, $val);
}
curl...
How to check whether a file or directory exists?
...whether the given file or directory exists
func exists(path string) (bool, error) {
_, err := os.Stat(path)
if err == nil { return true, nil }
if os.IsNotExist(err) { return false, nil }
return false, err
}
Edited to add error handling.
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Calculating frames per second in a game
...the smoothing is too low, just crank up the time constant (weightRatio = 0.05, 0.02, 0.01...)
– John Dvorak
May 18 '13 at 17:44
8
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CSS styling in Django forms
...is way:
<form action="/contact/" method="post">
{{ form.non_field_errors }}
<div class="fieldWrapper">
{{ form.subject.errors }}
{{ form.subject.label_tag }}
{{ form.subject }}
<span class="helptext">{{ form.subject.help_text }}</span>
</div>
<...
Shared-memory objects in multiprocessing
... Francis AvilaFrancis Avila
28.8k66 gold badges5050 silver badges9191 bronze badges
25
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“Use the new keyword if hiding was intended” warning
...
The new keyword would get rid of the compilation error, but may introduce other unintended behavior. I think you should add a warning to your answer. That would be helpful for understanding the consequences of adding new.
– ahong
Jun 2...
How to delete duplicate lines in a file without sorting it in Unix?
...f"; done
– Nick K9
Jan 17 '19 at 18:05
@NickK9 that de-duping cumulatively across multiple files is awesome in itself....