ipytangle 0.4.0

[\<stringy expression>](#:)

仅显示视图

For [`years` years](#:) have I trained Jedi.

[\<stringy expression>](#:<variable>)

显示视图并根据拖动更新整数

[made the kessel run in `distance` parsecs](#:distance)

[<booly expression>](#:if) … [_ ``[<booly expression>](#elif)``_] … [_ ``[](#:else)`` _] … [](#:endif)

标记一些文本（可能包含其他字段），以便根据条件显示

What's more foolish? The [`fool_is_more_foolish`](#:if)fool[](#:else)the fool who follows him(#:endif).

您还可以有 else 和任意数量的 elif… 因为它们是 markdown span-level 元素，您可以使用换行符以方便编辑

[`feeling == "bad"`](#:if) I have a bad feeling about this.
[`feeling == "cautious"`](#:elif) You will never find a more wretched hive of scum and villainy.
[](#:else) Search your feelings.
[](#:endif)

[\<stringy expression>](#:<variable>:(int|float):<min>:<max>:<step>)

显示视图并根据某些 type 类型的变量更新。此外，可以指定 minimum、maximum 和 step-size 值。

[](#:<variable>:inline)

用注册了链接小部件的 variable 替换（待定），以小部件本身的方式内联显示。> 需要研究。

ipytangle.tangle

就像上面的例子一样，这试图采取最 Pythonic 的方法。

from ipytangle import tangle

square = tangle(x=1, y=(1, lambda x: x*x))

print("square is", square)
square.x = 2
print("y is", square.y)

square is <IPython.utils.traitlets.DynamicAutoTangle139717235746760 object at 0x7f1274347ef0>
y is 4

from IPython.html.widgets import IntSlider

x = IntSlider(1)
square = tangle(x=x,  y=(1, lambda x: x*x))

print("square is", square)
x.value = 2
print("y is", square.y)

square is <IPython.utils.traitlets.DynamicAutoTangle139717235839048 object at 0x7f1274362080>
y is 4

ipytangle.Tangle

如果您已经熟悉小部件，子类化 Tangle 可能是最方便的

from ipytangle import Tangle
from IPython.utils import traitlets

class Square(Tangle):
    x = traitlets.CInt(1, sync=True)
    y = traitlets.CInt(1, sync=True)

    def _x_changed(self):
        self.y = self.x * self.x

square = Square()

print("square is", square)
square.x = 2
print("y is", square.y)

square is <__main__.Square object at 0x7f127434b7f0>
y is 4


A future version of IPython Widgets will allow dynamically-added
traits with ``add_trait``. This will open up whole new areas for
tinkering. Stay tuned!