Modify default output width in notebook buffer

[vale46]

The width for displayed output in a notebook buffer is set to 80 characters. How do I override/customize this default to display wider text/tables without the forced line break and wrapping?

Setting ein:truncate-lines-on impacts only the input lines in a notebook buffer.

Running Emacs 26.1 on W10 box.

[millejoh]

I will need to see the code that is triggering this behavior on your system as I am not seeing this on my setup.

s = '.'*120
print(s)

Results in a single line of output of 120 .'s long. For the most part, printing cell output devolves into calls to insert without any fill-text-like calls. Multiple lines of output can be truncated via the variable ein:truncate-long-cell-output, but this code also does not do any text filling.

On the Python side there is the config variable PlainTextFormatter.max_width. You might play with that and see if it results in different output.

[vale46]

Tried your suggestion, which prints the width of the emacs frame and wraps if needed.

As you mentioned, my issue is likely in IPython setup, because it happens when I print a pandas dataframe which is more than 80 characters wide, causing last 2 columns to wrap. Here's an example

import pandas as pd
mpg = pd.read_html("https://alliance.seas.upenn.edu/~cis520/wiki/index.php?n=Lectures.DecisionTrees", header=0)[0]
print(mpg)

Also, adjusting

%config PlainTextFormatter.max_width = 150

doesn't widen the output format.

[vale46]

Setting pandas.set_option('expand_frame_repr', False) fixes the dataframe output wrapping. Thanks for your tips in helping get to my solution.