我正在尝试将jupyter用于其笔记本中的熊猫数据框的输出复制到html / css / js,以便Flask可以将其返回jsonify
为html,稍后在AJAX调用中使用。
我发现了this和this,这建议使用pandas内置样式功能而不是CSS hack,但是我正在努力获得所需的功能:
def hover(hover_color="#add8e6"):
return dict(selector="tr:hover",
props=[("background-color", "%s" % hover_color)])
styles = [
hover(),
dict(selector="th", props=[("font-size", "125%"),
("text-align", "center"),
("padding", "5px 5px")]),
dict(selector="tr", props=[("text-align", "center")]),
dict(selector="caption", props=[("caption-side", "bottom")])
]
# creating some dummy data
index = pd.MultiIndex(levels=[['bar', 'baz', 'foo', 'qux'], ['one', 'two']],
labels=[[0, 0, 1, 1, 2, 2, 3, 3], [0, 1, 0, 1, 0, 1, 0, 1]],
names=['first', 'second'])
df = pd.DataFrame(data=np.random.randn(8), index=index)
# you'll see the html rendered bellow
df.style.set_table_styles(styles).set_caption("test").render()
与jupyter笔记本相比,这缺少一些默认的背景色去除,并且标题不应该应用悬停类。我能想到的在选择元素上应用某些东西的唯一方法是添加class=
或id=
样式功能将所有内容隐藏起来。
<style type="text/css" > #T_479b61ba_292a_11e8_86bf_0ee09a5428a2 tr:hover { background-color: #add8e6; } #T_479b61ba_292a_11e8_86bf_0ee09a5428a2 th { font-size: 150%; text-align: center; } #T_479b61ba_292a_11e8_86bf_0ee09a5428a2 caption { caption-side: bottom; }</style> <table id="T_479b61ba_292a_11e8_86bf_0ee09a5428a2" ><caption>Hover to highlight.</caption> <thead> <tr> <th class="blank" ></th> <th class="blank level0" ></th> <th class="col_heading level0 col0" >0</th> </tr> <tr> <th class="index_name level0" >first</th> <th class="index_name level1" >second</th> <th class="blank" ></th> </tr></thead> <tbody> <tr> <th id="T_479b61ba_292a_11e8_86bf_0ee09a5428a2level0_row0" class="row_heading level0 row0" rowspan=2>bar</th> <th id="T_479b61ba_292a_11e8_86bf_0ee09a5428a2level1_row0" class="row_heading level1 row0" >one</th> <td id="T_479b61ba_292a_11e8_86bf_0ee09a5428a2row0_col0" class="data row0 col0" >-0.0690895</td> </tr> <tr> <th id="T_479b61ba_292a_11e8_86bf_0ee09a5428a2level1_row1" class="row_heading level1 row1" >two</th> <td id="T_479b61ba_292a_11e8_86bf_0ee09a5428a2row1_col0" class="data row1 col0" >-0.518092</td> </tr> <tr> <th id="T_479b61ba_292a_11e8_86bf_0ee09a5428a2level0_row2" class="row_heading level0 row2" rowspan=2>baz</th> <th id="T_479b61ba_292a_11e8_86bf_0ee09a5428a2level1_row2" class="row_heading level1 row2" >one</th> <td id="T_479b61ba_292a_11e8_86bf_0ee09a5428a2row2_col0" class="data row2 col0" >-0.163842</td> </tr> <tr> <th id="T_479b61ba_292a_11e8_86bf_0ee09a5428a2level1_row3" class="row_heading level1 row3" >two</th> <td id="T_479b61ba_292a_11e8_86bf_0ee09a5428a2row3_col0" class="data row3 col0" >-0.144757</td> </tr> <tr> <th id="T_479b61ba_292a_11e8_86bf_0ee09a5428a2level0_row4" class="row_heading level0 row4" rowspan=2>foo</th> <th id="T_479b61ba_292a_11e8_86bf_0ee09a5428a2level1_row4" class="row_heading level1 row4" >one</th> <td id="T_479b61ba_292a_11e8_86bf_0ee09a5428a2row4_col0" class="data row4 col0" >1.22865</td> </tr> <tr> <th id="T_479b61ba_292a_11e8_86bf_0ee09a5428a2level1_row5" class="row_heading level1 row5" >two</th> <td id="T_479b61ba_292a_11e8_86bf_0ee09a5428a2row5_col0" class="data row5 col0" >1.83947</td> </tr> <tr> <th id="T_479b61ba_292a_11e8_86bf_0ee09a5428a2level0_row6" class="row_heading level0 row6" rowspan=2>qux</th> <th id="T_479b61ba_292a_11e8_86bf_0ee09a5428a2level1_row6" class="row_heading level1 row6" >one</th> <td id="T_479b61ba_292a_11e8_86bf_0ee09a5428a2row6_col0" class="data row6 col0" >0.793328</td> </tr> <tr> <th id="T_479b61ba_292a_11e8_86bf_0ee09a5428a2level1_row7" class="row_heading level1 row7" >two</th> <td id="T_479b61ba_292a_11e8_86bf_0ee09a5428a2row7_col0" class="data row7 col0" >-0.723836</td> </tr></tbody> </table>
我对您的代码进行了一些更改,以获得所需的功能:
thead
头和tbody
主体。我们可以使用它来指定突出显示行为为仅身体在Jupyter Notebook中:
import pandas as pd
import numpy as np
from IPython.display import HTML
def hover(hover_color="#add8e6"):
return dict(selector="tbody tr:hover",
props=[("background-color", "%s" % hover_color)])
styles = [
#table properties
dict(selector=" ",
props=[("margin","0"),
("font-family",'"Helvetica", "Arial", sans-serif'),
("border-collapse", "collapse"),
("border","none"),
("border", "2px solid #ccf")
]),
#header color - optional
dict(selector="thead",
props=[("background-color","#cc8484")
]),
#background shading
dict(selector="tbody tr:nth-child(even)",
props=[("background-color", "#fff")]),
dict(selector="tbody tr:nth-child(odd)",
props=[("background-color", "#eee")]),
#cell spacing
dict(selector="td",
props=[("padding", ".5em")]),
#header cell properties
dict(selector="th",
props=[("font-size", "125%"),
("text-align", "center")]),
#caption placement
dict(selector="caption",
props=[("caption-side", "bottom")]),
#render hover last to override background-color
hover()
]
html = (df.style.set_table_styles(styles)
.set_caption("Hover to highlight."))
html
...但是当我们输出HTML文件时,它仍然很漂亮吗?是。您可以做一些其他的CSS样式来使它正确(字体大小,字体系列,文本装饰,边距/填充等),但这为您提供了一个开始。见下文:
print(html.render())
<style type="text/css" >
#T_3e73cfd2_396c_11e8_9d70_240a645b34fc {
margin: 0;
font-family: "Helvetica", "Arial", sans-serif;
border-collapse: collapse;
border: none;
border: 2px solid #ccf;
} #T_3e73cfd2_396c_11e8_9d70_240a645b34fc thead {
background-color: #cc8484;
} #T_3e73cfd2_396c_11e8_9d70_240a645b34fc tbody tr:nth-child(even) {
background-color: #fff;
} #T_3e73cfd2_396c_11e8_9d70_240a645b34fc tbody tr:nth-child(odd) {
background-color: #eee;
} #T_3e73cfd2_396c_11e8_9d70_240a645b34fc td {
padding: .5em;
} #T_3e73cfd2_396c_11e8_9d70_240a645b34fc th {
font-size: 125%;
text-align: center;
} #T_3e73cfd2_396c_11e8_9d70_240a645b34fc caption {
caption-side: bottom;
} #T_3e73cfd2_396c_11e8_9d70_240a645b34fc tbody tr:hover {
background-color: #add8e6;
}</style>
<table id="T_3e73cfd2_396c_11e8_9d70_240a645b34fc" ><caption>Hover to highlight.</caption>
<thead> <tr>
<th class="blank" ></th>
<th class="blank level0" ></th>
<th class="col_heading level0 col0" >0</th>
</tr> <tr>
<th class="index_name level0" >first</th>
<th class="index_name level1" >second</th>
<th class="blank" ></th>
</tr></thead>
<tbody> <tr>
<th id="T_3e73cfd2_396c_11e8_9d70_240a645b34fclevel0_row0" class="row_heading level0 row0" rowspan=2>bar</th>
<th id="T_3e73cfd2_396c_11e8_9d70_240a645b34fclevel1_row0" class="row_heading level1 row0" >one</th>
<td id="T_3e73cfd2_396c_11e8_9d70_240a645b34fcrow0_col0" class="data row0 col0" >-0.130634</td>
</tr> <tr>
<th id="T_3e73cfd2_396c_11e8_9d70_240a645b34fclevel1_row1" class="row_heading level1 row1" >two</th>
<td id="T_3e73cfd2_396c_11e8_9d70_240a645b34fcrow1_col0" class="data row1 col0" >1.17685</td>
</tr> <tr>
<th id="T_3e73cfd2_396c_11e8_9d70_240a645b34fclevel0_row2" class="row_heading level0 row2" rowspan=2>baz</th>
<th id="T_3e73cfd2_396c_11e8_9d70_240a645b34fclevel1_row2" class="row_heading level1 row2" >one</th>
<td id="T_3e73cfd2_396c_11e8_9d70_240a645b34fcrow2_col0" class="data row2 col0" >0.500367</td>
</tr> <tr>
<th id="T_3e73cfd2_396c_11e8_9d70_240a645b34fclevel1_row3" class="row_heading level1 row3" >two</th>
<td id="T_3e73cfd2_396c_11e8_9d70_240a645b34fcrow3_col0" class="data row3 col0" >0.555932</td>
</tr> <tr>
<th id="T_3e73cfd2_396c_11e8_9d70_240a645b34fclevel0_row4" class="row_heading level0 row4" rowspan=2>foo</th>
<th id="T_3e73cfd2_396c_11e8_9d70_240a645b34fclevel1_row4" class="row_heading level1 row4" >one</th>
<td id="T_3e73cfd2_396c_11e8_9d70_240a645b34fcrow4_col0" class="data row4 col0" >-0.744553</td>
</tr> <tr>
<th id="T_3e73cfd2_396c_11e8_9d70_240a645b34fclevel1_row5" class="row_heading level1 row5" >two</th>
<td id="T_3e73cfd2_396c_11e8_9d70_240a645b34fcrow5_col0" class="data row5 col0" >-1.41269</td>
</tr> <tr>
<th id="T_3e73cfd2_396c_11e8_9d70_240a645b34fclevel0_row6" class="row_heading level0 row6" rowspan=2>qux</th>
<th id="T_3e73cfd2_396c_11e8_9d70_240a645b34fclevel1_row6" class="row_heading level1 row6" >one</th>
<td id="T_3e73cfd2_396c_11e8_9d70_240a645b34fcrow6_col0" class="data row6 col0" >0.726728</td>
</tr> <tr>
<th id="T_3e73cfd2_396c_11e8_9d70_240a645b34fclevel1_row7" class="row_heading level1 row7" >two</th>
<td id="T_3e73cfd2_396c_11e8_9d70_240a645b34fcrow7_col0" class="data row7 col0" >-0.683555</td>
</tr></tbody>
</table>
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