是否可以将呈现的HTML输出嵌入到IPython输出中?
一种方法是使用
from IPython.core.display import HTML
HTML('<a href="http://example.com">link</a>')
或(IPython多行单元格别名)
%%html
<a href="http://example.com">link</a>
返回一个格式化的链接，但是
这个链接不会从控制台打开带有网页本身的浏览器。不过，IPython笔记本支持真实渲染。 我不知道如何渲染HTML()对象内，说，一个列表或熊猫打印表。您可以执行df.to_html()，但不需要在单元格中创建链接。 这个输出在PyCharm Python控制台中不是交互式的(因为它不是QT)。
如何克服这些缺点并使IPython输出更具交互性呢?
当前回答
首先，代码:
from random import choices
def random_name(length=6):
return "".join(choices("abcdefghijklmnopqrstuvwxyz", k=length))
# ---
from IPython.display import IFrame, display, HTML
import tempfile
from os import unlink
def display_html_to_frame(html, width=600, height=600):
name = f"temp_{random_name()}.html"
with open(name, "w") as f:
print(html, file=f)
display(IFrame(name, width, height), metadata=dict(isolated=True))
# unlink(name)
def display_html_inline(html):
display(HTML(html, metadata=dict(isolated=True)))
h="<html><b>Hello</b></html>"
display_html_to_iframe(h)
display_html_inline(h)
一些简单的笔记:
You can generally just use inline HTML for simple items. If you are rendering a framework, like a large JavaScript visualization framework, you may need to use an IFrame. Its hard enough for Jupyter to run in a browser without random HTML embedded. The strange parameter, metadata=dict(isolated=True) does not isolate the result in an IFrame, as older documentation suggests. It appears to prevent clear-fix from resetting everything. The flag is no longer documented: I just found using it allowed certain display: grid styles to correctly render. This IFrame solution writes to a temporary file. You could use a data uri as described here but it makes debugging your output difficult. The Jupyter IFrame function does not take a data or srcdoc attribute. The tempfile module creations are not sharable to another process, hence the random_name(). If you use the HTML class with an IFrame in it, you get a warning. This may be only once per session. You can use HTML('Hello, <b>world</b>') at top level of cell and its return value will render. Within a function, use display(HTML(...)) as is done above. This also allows you to mix display and print calls freely. Oddly, IFrames are indented slightly more than inline HTML.
其他回答
这似乎对我很管用:
from IPython.core.display import display, HTML
display(HTML('<h1>Hello, world!</h1>'))
诀窍是将它也包装在显示中。
来源:http://python.6.x6.nabble.com/Printing-HTML-within-IPython-Notebook-IPython-specific-prettyprint-tp5016624p5016631.html
编辑:
from IPython.display import display, HTML
为了避免:
DeprecationWarning:从IPython.core.display导入显示 自IPython 7.14以来已弃用，请从IPython显示导入
扩展上面的@Harmon，看起来你可以把显示和打印语句结合在一起…如果你需要的话。或者，将整个HTML格式化为一个字符串，然后使用display会更简单。不管怎样，都是不错的功能。
display(HTML('<h1>Hello, world!</h1>'))
print("Here's a link:")
display(HTML("<a href='http://www.google.com' target='_blank'>www.google.com</a>"))
print("some more printed text ...")
display(HTML('<p>Paragraph text here ...</p>'))
输出如下所示:
你好,世界!
这里有一个链接:
www.google.com
再来点印刷品……
段落文本在这里…
相关:当构造一个类，def _repr_html_(self):…可以用来创建其实例的自定义HTML表示:
class Foo:
def _repr_html_(self):
return "Hello <b>World</b>!"
o = Foo()
o
将呈现为:
你好世界!
更多信息请参考IPython的文档。
高级示例:
from html import escape # Python 3 only :-)
class Todo:
def __init__(self):
self.items = []
def add(self, text, completed):
self.items.append({'text': text, 'completed': completed})
def _repr_html_(self):
return "<ol>{}</ol>".format("".join("<li>{} {}</li>".format(
"☑" if item['completed'] else "☐",
escape(item['text'])
) for item in self.items))
my_todo = Todo()
my_todo.add("Buy milk", False)
my_todo.add("Do homework", False)
my_todo.add("Play video games", True)
my_todo
将呈现:
买牛奶 做功课 ☑玩电子游戏
不久前，Jupyter笔记本开始从HTML内容中剥离JavaScript[#3118]。这里有两种解决方案:
提供本地HTML
如果你现在想在你的页面上嵌入一个带有JavaScript的HTML页面，最简单的方法是将你的HTML文件保存到笔记本电脑的目录中，然后按如下方式加载HTML:
from IPython.display import IFrame
IFrame(src='./nice.html', width=700, height=600)
提供远程HTML
如果你更喜欢托管解决方案，你可以将你的HTML页面上传到S3中的Amazon Web Services“bucket”中，更改桶上的设置，使桶托管一个静态网站，然后在你的笔记本中使用Iframe组件:
from IPython.display import IFrame
IFrame(src='https://s3.amazonaws.com/duhaime/blog/visualizations/isolation-forests.html', width=700, height=600)
这将在iframe中呈现你的HTML内容和JavaScript，就像你在任何其他网页上一样:
<iframe src='https://s3.amazonaws.com/duhaime/blog/visualizations/isolation-forests.html'， width=700, height=600></iframe>
首先，代码:
from random import choices
def random_name(length=6):
return "".join(choices("abcdefghijklmnopqrstuvwxyz", k=length))
# ---
from IPython.display import IFrame, display, HTML
import tempfile
from os import unlink
def display_html_to_frame(html, width=600, height=600):
name = f"temp_{random_name()}.html"
with open(name, "w") as f:
print(html, file=f)
display(IFrame(name, width, height), metadata=dict(isolated=True))
# unlink(name)
def display_html_inline(html):
display(HTML(html, metadata=dict(isolated=True)))
h="<html><b>Hello</b></html>"
display_html_to_iframe(h)
display_html_inline(h)
一些简单的笔记:
You can generally just use inline HTML for simple items. If you are rendering a framework, like a large JavaScript visualization framework, you may need to use an IFrame. Its hard enough for Jupyter to run in a browser without random HTML embedded. The strange parameter, metadata=dict(isolated=True) does not isolate the result in an IFrame, as older documentation suggests. It appears to prevent clear-fix from resetting everything. The flag is no longer documented: I just found using it allowed certain display: grid styles to correctly render. This IFrame solution writes to a temporary file. You could use a data uri as described here but it makes debugging your output difficult. The Jupyter IFrame function does not take a data or srcdoc attribute. The tempfile module creations are not sharable to another process, hence the random_name(). If you use the HTML class with an IFrame in it, you get a warning. This may be only once per session. You can use HTML('Hello, <b>world</b>') at top level of cell and its return value will render. Within a function, use display(HTML(...)) as is done above. This also allows you to mix display and print calls freely. Oddly, IFrames are indented slightly more than inline HTML.
