1.14 argument 和 parameter 的区别? — Python黑魔法手册 1.0.0 documentation

https://magic.iswbm.com/c01/c01_14.html

rt，我还以为就其它社交平台给的网盘里压缩包有密码和二维码，结果连release给的压缩包也是，扫码进去吧，还说什么取关过，得加微信好友才行，就这？挺反感的就是

1.32 如何让大数变得更易于阅读？ — Python黑魔法手册 1.0.0 documentation

https://magic.iswbm.com/c01/c01_32.html

5.21 字典访问不存在的key时不再报错 — Python黑魔法手册 1.0.0 documentation

https://magic.iswbm.com/c05/c05_21.html

所以当我在 /usr/local/sbin 下创建一个名字也为 python 的可执行文件时，就会执行 /usr/bin/python 了。

在/usr/local/sbin下创建名为python的可执行文件,执行的不应该是/usr/local/sbin/python吗?

3.13 创造 “新语法” 的黑科技 — Python黑魔法手册 1.0.0 documentation

https://magic.iswbm.com/c03/c03_13.html

3.1 八种连接列表的方式 — Python黑魔法手册 1.0.0 documentation

https://magic.iswbm.com/c03/c03_01.html

6.2 默认参数最好不为可变对象 — Python黑魔法手册 1.0.0 documentation

https://magic.iswbm.com/c06/c06_02.html

第三章条件语句的7种写法的第4种on true和on false好像写反了

1.8 连接多个列表最极客的方式 — Python黑魔法手册 1.0.0 documentation

https://magic.iswbm.com/c01/c01_08.html

第二节，end的使用方法，你的示例中不管那种都必被if或者else捕获，然后直接return，压根就走不到end的地方，我没有亲自实验，但是没报错不能说明这个东西有用，只能证明这个东西没有报错，请考虑一个严谨的例子。不然怕是误人误己

http://magic.iswbm.com/zh/latest/c07/c07_05.html#id1

python 3.8.5 32bit , numba 0.52.0

from numba import jit
import time


@jit
def foo(x, y):
    tt = time.time()
    s = 0
    for i in range(x, y):
        s += i
    print("Time used: {} sec".format(time.time() - tt))
    return s


print(foo(1, 100000000))

c:\Users\wuyudi\Desktop\新建 Python File (3).py:5: NumbaWarning: 
Compilation is falling back to object mode WITH looplifting enabled because Function "foo" failed type inference due to: Unknown attribute 'time' of type Module(<module 'time' (built-in)>)

File "Desktop\新建 Python File (3).py", line 7:
def foo(x, y):
    tt = time.time()
    ^

During: typing of get attribute at c:\Users\wuyudi\Desktop\新建 Python File (3).py (7)

File "Desktop\新建 Python File (3).py", line 7:
def foo(x, y):
    tt = time.time()
    ^

  @jit
c:\Users\wuyudi\Desktop\新建 Python File (3).py:5: NumbaWarning: 
Compilation is falling back to object mode WITHOUT looplifting enabled because Function "foo" failed type inference due to: Cannot determine Numba type of <class 'numba.core.dispatcher.LiftedLoop'>

File "Desktop\新建 Python File (3).py", line 9:
def foo(x, y):
    <source elided>
    s = 0
    for i in range(x, y):
    ^

  @jit
D:\Program Files\Python3.8.5\lib\site-packages\numba\core\object_mode_passes.py:151: NumbaWarning: Function "foo" was compiled in object mode without forceobj=True, but has lifted loops.

File "Desktop\新建 Python File (3).py", line 7:
def foo(x, y):
    tt = time.time()
    ^

  warnings.warn(errors.NumbaWarning(warn_msg,
D:\Program Files\Python3.8.5\lib\site-packages\numba\core\object_mode_passes.py:161: NumbaDeprecationWarning: 
Fall-back from the nopython compilation path to the object mode compilation path has been detected, this is deprecated behaviour.

For more information visit https://numba.pydata.org/numba-doc/latest/reference/deprecation.html#deprecation-of-object-mode-fall-back-behaviour-when-using-jit

File "Desktop\新建 Python File (3).py", line 7:
def foo(x, y):
    tt = time.time()
    ^

  warnings.warn(errors.NumbaDeprecationWarning(msg,
Time used: 0.12804293632507324 sec
887459712

1.12 神奇的 intern 机制 — Python黑魔法手册 1.0.0 documentation

https://magic.iswbm.com/c01/c01_12.html

没法发送消息。怎么拿激活码啊。已经关注了。发我邮箱吧[email protected]

感谢分享，请问Sphinx中英文搜索在conf.py中如何设置呢？

3.9.2下，io.open和open应该是一个函数，os.open才应该是底层的文件I/O流

Python 3.9.2 (default, Feb 28 2021, 17:03:44) 
[GCC 10.2.1 20210110] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import os
>>> (open1:=open) is (open2:=os.open)
False
>>> import io
>>> (open3:=open) is (open3:=io.open)
True

6.6 不想让子类继承的变量名该怎么写？ — Python黑魔法手册 1.0.0 documentation

https://magic.iswbm.com/c06/c06_06.html

5.2 将嵌套 for 循环写成单行 — Python黑魔法手册 1.0.0 documentation

https://magic.iswbm.com/c05/c05_02.html

在 10.哪些情况下不需要续行符 中：

在多行文本注释中，续行符也是可以不写的，但是会变成\n。

text = '''talk is cheap, show me the code.'''

输出：'talk is cheap,\nshow me the code.'

在 11.用户无感知的小整数池 中

在同一行里，同时给两个变量赋同一值时，结果依然为False。

a = 257; b = 257 a is b

输出：False

在 12.神器的intern机制 中

如果一个字符串长度超过20个字符，不启动intern机制，这个数字好像不是20

s1 = "a"*100 s2 = "a"*100 s1 is s2

输出：True

s1 = "a"*10001 s2 = "a"*10001 s1 is s2

输出：False

2.10 让脚本报错后立即进入调试模式 — Python黑魔法手册 1.0.0 documentation

https://magic.iswbm.com/c02/c02_10.html

wugn

https://wugn.tech/src/0000_example/README.html

http://magic.iswbm.com/zh/latest/c02/c02_12.html

2.8 最正确且优雅的装包方法 — Python黑魔法手册 1.0.0 documentation

https://magic.iswbm.com/c02/c02_08.html

1.24 时有时无的切片异常 — Python黑魔法手册 1.0.0 documentation

https://magic.iswbm.com/c01/c01_24.html

1.28 循环中的局部变量泄露 — Python黑魔法手册 1.0.0 documentation

https://magic.iswbm.com/c01/c01_28.html

6.10 保持代码的简洁与可诗性 — Python黑魔法手册 1.0.0 documentation

https://magic.iswbm.com/c06/c06_10.html

7.2 代码 BUG 变得酷炫的利器 — Python黑魔法手册 1.0.0 documentation

https://magic.iswbm.com/c07/c07_02.html

5.31 替换实例方法的最佳实践 — Python黑魔法手册 1.0.0 documentation

https://magic.iswbm.com/c05/c05_31.html

AI for Scientific Simulation and Discovery Lab | Frontiers in Computer Science and Technology

http://localhost:4000/course/

http://magic.iswbm.com/zh/latest/c01/c01_07.html
当一个 or 表达式中所有值都为真，Python会选择第一个值

当一个 and 表达式 所有值都为真，Python 会选择第二个值。是最后一个真, 不要用第二个这样的词, 容易让人误导

def read_from_file(filename: str, block_size: int = 1024 * 8) -> iter:
    with open(filename, "r") as fp:
        while chunk := fp.read(block_size):
            yield chunk

使用 Python3.8 中的海象运算符可以使函数更加易读。

2.22 快速将项目打包成应用程序 — Python黑魔法手册 1.0.0 documentation

https://magic.iswbm.com/c02/c02_22.html

没有黑魔法中的sys.ps1参数？


无法修改解释器提示符

1.1 默默无闻的省略号很好用 — Python黑魔法手册 1.0.0 documentation

https://magic.iswbm.com/c01/c01_01.html

2.6 如何快速搭建 HTTP 服务器 — Python黑魔法手册 1.0.0 documentation

https://magic.iswbm.com/c02/c02_06.html

6.12 变量不能与保留关键字重名 — Python黑魔法手册 1.0.0 documentation

https://magic.iswbm.com/c06/c06_12.html

wugn

http://127.0.0.1:8090/src/0020_battery_gauge/docs/0003_qcom_pax_%E7%94%B5%E9%87%8F%E8%AE%A1%E5%AF%B9%E6%AF%94%E5%88%86%E6%9E%90.html

7.10 让你的装饰器写得更轻松的神库 — Python黑魔法手册 1.0.0 documentation

https://magic.iswbm.com/c07/c07_10.html

README中各标题指向的地址错误

1.13 site-packages和 dist-packages — Python黑魔法手册 1.0.0 documentation

https://magic.iswbm.com/c01/c01_13.html

1.22 字母也玩起了障眼法 — Python黑魔法手册 1.0.0 documentation

https://magic.iswbm.com/c01/c01_22.html

1.19 return不一定都是函数的终点 — Python黑魔法手册 1.0.0 documentation

https://magic.iswbm.com/c01/c01_19.html

1.11 用户无感知的小整数池 — Python黑魔法手册 1.0.0 documentation

https://magic.iswbm.com/c01/c01_11.html

6.3 增量赋值的性能更好 — Python黑魔法手册 1.0.0 documentation

https://magic.iswbm.com/c06/c06_03.html

这里应该改成 self._math=name