如何在 Jupyter 笔记本中包装代码/文本

Question

I am using jupyter-notebooks for python coding. Is there a way to wrap text/code in a jupyter notebook code cell?

Picture provided below.

By wrap text means "how text is wrapped in MS-word"

Answer 1

Find your configuration directory via jupyter --config-dir (mine is ~/.jupyter ). Then edit or create nbconfig/notebook.json to add the following:

{
  "MarkdownCell": {
    "cm_config": {
      "lineWrapping": true
    }
  },
  "CodeCell": {
    "cm_config": {
      "lineWrapping": true
    }
  }
}

(If you have something else in it, ensure you have valid JSON with no trailing commas after } s.)

Restart Jupyter and reload your notebook.

Source: https://github.com/jupyter/notebook/issues/106

Answer 2

In addition to Dan's answer, you can apply line wrapping for all cells (code or markdown) by specifying the top object as Cell. Adding the code below to your ~/.jupyter/nbconfig/notebook.json

{
  "Cell": {
    "cm_config": {
      "lineWrapping": true
    }
  }
}

Ex: This is my cell config

{
  "Cell": {
    "cm_config": {
      "lineNumbers": false,
      "lineWrapping": true
    }
  }
}

Answer 3

Easiest for me was this, straightforward and does not require a pip install:

from textwrap import wrap
long_str = 'I rip wrap unravel when I time travel, with beats in my head'
lines = wrap(long_str, 20) #wrap outputs a list of lines
print('\n'.join(lines))    #so join 'em with newline

#prints: 
#I rip wrap unravel
#when I time travel,
#with beats in my
#head

Answer 4

This may not be as satisfactory of an answer but while working Google Colab, I use the three single quote marks above and below the line of comments. Once quote marks are in place, I can hit return where I see fit.

Original comment:

# Using the number of rows from the original concatenated dataframe and the trimmed dataframe, quantify the percent difference between the number of rows lost

Solution:

''' Using the number of rows from the original concatenated dataframe and the trimmed dataframe, quantify the percent difference between the number of rows lost '''

Here is a screen grab of the solution:

Answer 5

I am working with Jupyter notebook ( .ipynb ) through VSC Visual Studio Code, and I did find out that setting line/word wrapping could be set as follows:

1. hit F1
2. choose Preferences: Open Settings (UI)
3. start typing in wrap
4. Editor: Word Wrap Controls how lines should wrap pops up, change to On

It works for code (Python cells). Markdown cells work fine even without changing above setting.

Answer 6

You can do:

Settings > Advanced setting Editor > TextEditor > checkbox enable Line Wrap.

Answer 7

Since none of these solutions worked for me, I opted for a different approach and wrote a simple column-wrapping print function that you can use to manually guarantee that the lines of any string will remain in view, for simple output checking scenarios.

def printwr( item, wrapCol=70 ):
    """ wrap printing to column limit """
    posit = 0
    while True:
        # if remaining legnth eq/less than wrapCol, print and rturn
        if len(item[posit:]) <= wrapCol: print(item[posit:]); return
        # else take wrapCol chars from last index
        llim = posit+wrapCol+1
        # if more than one item, drop last contiguous non-space sequence (word)
        lineSpl = item[posit:llim].split(' ')
        segment = ' '.join(lineSpl[:-1]) if len(lineSpl)>1 else lineSpl
        # print segment and increment posit by length segment
        posit += len(segment)+1
        print(segment)

For example, for

exampleStr = "populations tend to cluster in the foothills and periphery of the rugged Hindu Kush range; smaller groups are found in many of the country's interior valleys; in general, the east is more densely settled, while the south is sparsely populated"

printwr(exampleStr) 

produces:

populations tend to cluster in the foothills and periphery of the rugged Hindu Kush range; smaller groups are found in many of the country's interior valleys; in general, the east is more densely settled, while the south is sparsely populated

Answer 8

Shortest Answer Ever

Try adding a ' \ ' in between the lines of code you need to split.

This allows you to split your code over different lines and helps it look prettier.