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How to convert JSON data into a Python object
...ace
data = '{"name": "John Smith", "hometown": {"name": "New York", "id": 123}}'
# Parse JSON into an object with attributes corresponding to dict keys.
x = json.loads(data, object_hook=lambda d: SimpleNamespace(**d))
print(x.name, x.hometown.name, x.hometown.id)
OLD ANSWER (Python2)
In Python2, ...
Convert text into number in MySQL query
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You can use CAST() to convert from string to int. e.g. SELECT CAST('123' AS INTEGER);
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Undefined reference to `pow' and `floor'
... U floor@@GLIBC_2.2.5
00000000000006f0 t frame_dummy
0000000000200d98 t __frame_dummy_init_array_entry
00000000000009a4 r __FRAME_END__
0000000000200fa8 d _GLOBAL_OFFSET_TABLE_
w __gmon_start__
000000000000083c r __GNU_EH_FRAME_HDR
0000000000000588 T _init
0000000000200da0 t...
BLE 接收BLE模块发来的信息 - 创客硬件开发 - 清泛IT社区，为创新赋能！
...-1.html
读取ble数据并显示在App上请参考文档：https://www.fun123.cn/reference/ ... ml#RegisterForBytes
请先自行研究一下，如果遇到具体的问题，请再继续跟帖提问，谢谢。App Inventor 2 发表于 2024-09-24 16:15
ble 设备连接，发送数据...
'innerText' works in IE, but not in Firefox
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What is a 'semantic predicate' in ANTLR?
...) throws Exception {
ANTLRStringStream in = new ANTLRStringStream("123, 456, 7 , 89");
NumbersLexer lexer = new NumbersLexer(in);
CommonTokenStream tokens = new CommonTokenStream(lexer);
NumbersParser parser = new NumbersParser(tokens);
parser.parse();
}...
List comprehension vs map
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10000 loops, best of 3: 181/118/123 usec per loop ^^^^^^^^^^^^^^^^^^
for list(<generator>), probably optimized
% python3 -mtimeit -s 'xs=range(1000)' 'f=lambda x:x' 'z=list(f(x) for x in xs)' ...
How to store a dataframe using Pandas
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Pickle works good!
import pandas as pd
df.to_pickle('123.pkl') #to save the dataframe, df to 123.pkl
df1 = pd.read_pickle('123.pkl') #to load 123.pkl back to the dataframe df
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How can I call controller/view helper methods from the console in Ruby on Rails?
...the helper object:
$ ./script/console
>> helper.number_to_currency('123.45')
=> "R$ 123,45"
If you want to use a helper that's not included by default (say, because you removed helper :all from ApplicationController), just include the helper.
>> include BogusHelper
>> helper...
What is “export default” in javascript?
...ello() {
console.log("Modul: Saying hello!");
}
export let variable = 123;
modul2.js
export function hello2() {
console.log("Module2: Saying hello for the second time!");
}
export let variable2 = 456;
modul3.js
export default function hello3() {
console.log("Module3: Saying hello...