Questions tagged [pandas-styles]

[pandas-styles] is to be used on questions about Table Visualization using pandas built-in Styler object (df.style). Be sure to also include the tag [pandas].

Pandas has built-in support for creating styled tables which can be viewed in environments which support it like Jupyter Notebooks or exported to Excel, LaTeX, or HTML.

The result of table styles is a styled object which is no longer a DataFrame. Styling should be applied after all data processing has been completed as the resulting styled object will not have access to DataFrame data processing methods.


The documentation on Table Visualization covers the features offered.

Direct Links to Common Formatting Operations:

  1. Formatting the Display
    • Format the text display for the underlying values in the DataFrame.
  2. Table Styles
    • Use CSS to define styles for the table as a whole.
  3. Styler Functions
    • Use pandas logic operations to conditionally apply CSS styles to cells, rows, and/or columns in the DataFrame
  4. Tooltips and Captions
  5. Builtin Styles
    • Common styling operations that are included in the Styler
  6. Export to Excel
  7. Export to LaTeX
  8. Export to HTML

Limitations

  • DataFrame only (use Series.to_frame().style)
  • The index and columns do not need to be unique, but certain styling functions can only work with unique indexes.
  • No large repr, and construction performance isn’t great; although we have some HTML optimizations
  • You can only apply styles, you can’t insert new HTML entities, except via subclassing.
325 questions
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How to use `style` in conjunction with the `to_html` classes on a DataFrame?

I have a DataFrame like df = pd.DataFrame(np.random.randn(10).reshape(2, 5)) df # 0 1 2 3 4 # 0 -0.067162 -0.505401 -0.019208 1.123936 0.087682 # 1 -0.373212 -0.598412 0.185211 0.736143…
Eric Hansen
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Changing style of pandas.DataFrame: Permanently?

When I change the style of a pandas.DataFrame, for instance like so # color these columns color_columns = ['roi', 'percent_of_ath'] (portfolio_df .style # color negative numbers red …
Ugur
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why pandas dataframe style lost when saved with "to_excel"?

Per this example the to_excel method should save the Excel file with background color. However, my saved Excel file does not have any color in it. I tried to write using both openpyxl and xlsxwriter engines. In both cases, the Excel file was saved,…
Chandu
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How to define color of specific cell in pandas dataframe based on integer position (e.g., df.iloc[1,1]) with df.style?

Is it possible to define a color of a specific cell in a pandas dataframe based on integer position like for instance df.iloc[1,1] with pandas styling? https://pandas.pydata.org/pandas-docs/stable/style.html Something like the following would be…
Raphael
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pandas styling doesn't display for all rows in large dataframes in Chrome or Edge

Update: The issue seems to be with displaying the HTML with styling rendered by pandas in Google Chrome and Microsoft Edge. JupyterLab in Firefox correctly displays all of the styled rows and correctly renders an output HTML file. The updated…
Trenton McKinney
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Perform operations after styling in a dataframe

Whenever I try to perform any operation after styling in my code, I see this error: AttributeError: 'Styler' object has no attribute 'drop' In this instance I was trying to drop a column after applying a style, in other cases I tried concatenating…
Rajesh D
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Combine multiple styles in pandas

I would like to ask if it is possible to combine different style formatting in pandas. For instance I want to combine the following 4 styles at once. df.style.format({'vm_unity': '{:.2%}'}).bar(subset=['vm_unity'], align='mid', color=['#d65f5f',…
Giorgos Synetos
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Apply Pandas Style to All Dataframes in Jupyter Notebook

In Jupyter notebooks with many Pandas Dataframes, is there a way to set default Style options for all dataframes? Essentially to avoid boilerplate. For example Hiding-the-Index-or-Columns with df.style.hide_index() for all dataframes. Yes, I could…
Martin Thøgersen
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Python Pandas: Style column header

I am using pandas styler to give some columns a background color, based on the name of the column header. While this works as intended, the background color of the column header doesn't change. Here is the part in my script where thy style is…
Mr Curious
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TypeError: ("unsupported operand type(s) for -: 'decimal.Decimal' and 'float'", 'occurred at index growth(%)')

This is my dataframe -- c2_name Q1_GMV Q2_GMV growth(%) 0 A 1170727260 221801763 -81 1 B 1604716749 829186592 -48 2 C 661473481 553698141 -16 I've trying to add CSS to the dataframe output using the…
Naman Doshi
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Highlighting multiple cells in different colors with Pandas

Imagine we have a dataframe and I want to color different cells: Cells ['Arizona','company'](1st), ['Texas','size'](1099) as green. Cells ['Florida','veterans'](26), ['Maine','armored'](0) as red. What's a good way to do it? raw_data =…
DanZimmerman
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pandas Styler. How to ignore the index column from the rendered HTML

I am trying to use the string generated from rendering a styler in an email message. Seems really hard to get this to ignore the dataframe index. table_styles = [dict(selector="tbody tr th", props=[("display",…
7
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3 answers

Applying style to a pandas DataFrame row-wise

I'm experimenting/learning Python with a data set containing customers information. The DataFrame structure is the following (these are made up records): import pandas as pd df1 = pd.DataFrame({'left_name' : ['James', 'Mary', 'John', 'Patricia'], …
glpsx
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Pandas style: How to highlight diagonal elements

I was wondering how to highlight diagonal elements of pandas dataframe using df.style method. I found this official link where they discuss how to highlight maximum value, but I am having difficulty creating function to highlight the diagonal…
BhishanPoudel
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Using pandas applymap() with multiple mapping functions

I am using df.to_excel() to output data from a pandas dataframe to excel. To improve readability, I am using df.style.applymap() to change the color of the cell based on the contents. Imagine I have a dataframe that looks like: df = Account…
Brian L
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