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Random hash in Python
...ier that has the same length as a md5 sum. Hex will represent is as an hex string instead of returning a uuid object.
http://docs.python.org/2/library/uuid.html
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What are metaclasses in Python?
...ell, I guess it's a matter of consistency with str, the class that creates
strings objects, and int the class that creates integer objects. type is
just the class that creates class objects.
You see that by checking the __class__ attribute.
Everything, and I mean everything, is an object in Python. ...
(grep) Regex to match non-ASCII characters?
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[^\x00-\x7F] and [^[:ascii:]] miss some control bytes so strings can be the better option sometimes. For example cat test.torrent | perl -pe 's/[^[:ascii:]]+/\n/g' will do odd things to your terminal, where as strings test.torrent will behave.
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How to generate unique ID with node.js
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The fastest possible way to create random 32-char string in Node is by using native crypto module:
const crypto = require("crypto");
const id = crypto.randomBytes(16).toString("hex");
console.log(id); // => f9b327e70bbcf42494ccb28b2d98e00e
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Pass Additional ViewData to a Strongly-Typed Partial View
...<div class="row titleBlock">
<h1>@ViewData["HeaderName"].ToString()</h1>
<h5>@ViewData["TitleName"].ToString()</h5>
</div>
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How to check if a value exists in a dictionary (python)
... v in test.values() for x in v]
>>True
What if list of values with string values
test = {'key1': ['value4', 'value5', 'value6'], 'key2': ['value9'], 'key3': ['value6'], 'key5':'value10'}
values = test.values()
"value10" in [x for v in test.values() for x in v] or 'value10' in values
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Left padding a String with Zeros [duplicate]
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If your string contains numbers only, you can make it an integer and then do padding:
String.format("%010d", Integer.parseInt(mystring));
If not I would like to know how it can be done.
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mmap() vs. reading blocks
...into your process. It's as if you memory mapped it yourself except with an extra copy step.
– Chris Smith
Oct 26 '08 at 21:53
6
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List directory tree structure in python?
...ct print a visual tree structure"""
dir_path = Path(dir_path) # accept string coerceable to Path
files = 0
directories = 0
def inner(dir_path: Path, prefix: str='', level=-1):
nonlocal files, directories
if not level:
return # 0, stop iterating
if...
字符串指针变量与字符数组的区别 - C/C++ - 清泛网 - 专注C/C++及内核技术
... 设有定义字符型指针变量与字符数组的语句如下： char *pc ,str[100]; 则系统...使用字符串指针变量与字符数组的区别
（1）分配内存
设有定义字符型指针变量与字符数组的语句如下：
char *pc ,str[100];
则系...