Q: 如何把jupyter notebook 转为 pdf 文档?

A: 尝试了几种python包, 结果都没有成功. 包括: xhtml2pdf,

查看官方的介绍说用pandoc也是一种方法, 但是觉得安装一个可怕的Latex和pandoc太麻烦了.

还好, 找到了一个开源方法: 用wkhtmltopdf 程序.

用python写一个脚本, 调用wkhtmltopdf, 运行命令行指令, 得以实现. 非常符合我的预期. 简明, 优雅.

wkhtml2pdf 简介

wkhtmltopdf,一个集成好了的exe文件(C++编写),

基本的调用方法是:

"c:\Program Files\bin\wkhtmltopdf.exe" https://github.com/mementum/backtrader/blob/master/docs2/signal_strategy/signal_strategy.rst signal_strategy.pdf

Loading pages (1/6)
Counting pages (2/6)
Resolving links (4/6)
Loading headers and footers (5/6)
Printing pages (6/6)
Done

C:\Documents and Settings\Administrator\duanqs\strategy_study>dir *.pdf

 驱动器 C 中的卷是 160GB_XP
卷的序列号是 EC5F-C44B C:\Documents and Settings\Administrator\duanqs\strategy_study 的目录 2017-04-17 14:47 120,295 signal_strategy.pdf
2017-04-17 13:32 597,111 backtest.pdf
2 个文件 717,406 字节
0 个目录 19,999,031,296 可用字节

可以先在命令行测试一下,有其他的需要, 可以在命令行通过wkhtmltopdf --help查询,

如果是超长页的话,可以用命令:

wkhtmltopdf.exe http://passport.yupsky.com/ac/register e:\yupskyreg.pdf -H --outline

Here:

-H 是显示扩展帮助

--outline 是添加pdf的左侧概要!(缺省设置)

而且可以批量生成哦,中间用空格隔开

python 脚本: (封装了运行wkhtml2pdf.exe 命令行的py脚本)


# code:utf-8 '''
IPython/Jupyter Problems saving notebook as PDF - Stack Overflow
http://stackoverflow.com/questions/29156653/ipython-jupyter-problems-saving-notebook-as-pdf This Python script has GUI to select with explorer a Ipython Notebook you want to convert to pdf.
The approach with wkhtmltopdf is the only approach I found works well and provides high quality pdfs.
Other approaches described here are problematic, syntax highlighting does not work or graphs are messed up. You'll need to install wkhtmltopdf: http://wkhtmltopdf.org/downloads.html
and Nbconvert pip install nbconvert
# OR
conda install nbconvert '''
# Script adapted from CloudCray
# Original Source: https://gist.github.com/CloudCray/994dd361dece0463f64a
# 2016--06-29
# This will create both an HTML and a PDF file import subprocess
import os
from Tkinter import Tk
from tkFileDialog import askopenfilename WKHTMLTOPDF_PATH = "C:/Program Files/wkhtmltopdf/bin/wkhtmltopdf" # or wherever you keep it def export_to_html(filename):
cmd = 'ipython nbconvert --to html "{0}"'
subprocess.call(cmd.format(filename), shell=True)
return filename.replace(".ipynb", ".html") def convert_to_pdf(filename):
cmd = '"{0}" "{1}" "{2}"'.format(WKHTMLTOPDF_PATH, filename, filename.replace(".html", ".pdf"))
subprocess.call(cmd, shell=True)
return filename.replace(".html", ".pdf") def export_to_pdf(filename):
fn = export_to_html(filename)
return convert_to_pdf(fn) def main():
print("Export IPython notebook to PDF")
print(" Please select a notebook:") Tk().withdraw() # Starts in folder from which it is started, keep the root window from appearing
x = askopenfilename() # show an "Open" dialog box and return the path to the selected file
x = str(x.split("/")[-1]) print(x) if not x:
print("No notebook selected.")
return 0
else:
fn = export_to_pdf(x)
print("File exported as:\n\t{0}".format(fn))
return 1 main()

这里也记录一下尝试xhtml2pdf的经过.

安装完了以后, 编写脚本, 运行时主要是: 卡在了html5lib这个包里:

异常是:

inputstream

CSS parser

等等.

搞定不了, 所以放弃之.

install xhtml2pdf and update html5lib from old vertion to new version (1.0b8)

Here is the logging:

C:\Documents and Settings\Administrator>pip install xhtml2pdf
Collecting xhtml2pdf
Downloading xhtml2pdf-0.0.6.zip (120kB)
100% |████████████████████████████████| 122kB 467kB/s
Collecting html5lib (from xhtml2pdf)
Using cached html5lib-0.999999999-py2.py3-none-any.whl
Collecting pyPdf2 (from xhtml2pdf)
Downloading PyPDF2-1.26.0.tar.gz (77kB)
100% |████████████████████████████████| 81kB 10kB/s
Requirement already satisfied: Pillow in d:\anaconda2\lib\site-packages (from xhtml2pdf)
Collecting reportlab>=2.2 (from xhtml2pdf)
Downloading reportlab-3.4.0-cp27-cp27m-win32.whl (2.1MB)
100% |████████████████████████████████| 2.1MB 261kB/s
Collecting webencodings (from html5lib->xhtml2pdf)
Downloading webencodings-0.5.1-py2.py3-none-any.whl
Requirement already satisfied: setuptools>=18.5 in d:\anaconda2\lib\site-packages (from html5lib->xhtml2pdf)
Requirement already satisfied: six in d:\anaconda2\lib\site-packages (from html5lib->xhtml2pdf)
Requirement already satisfied: pip>=1.4.1 in d:\anaconda2\lib\site-packages (from reportlab>=2.2->xhtml2pdf)
Requirement already satisfied: packaging>=16.8 in d:\anaconda2\lib\site-packages (from setuptools>=18.5->html5lib->xhtml
2pdf)
Requirement already satisfied: appdirs>=1.4.0 in d:\anaconda2\lib\site-packages (from setuptools>=18.5->html5lib->xhtml2
pdf)
Requirement already satisfied: pyparsing in d:\anaconda2\lib\site-packages (from packaging>=16.8->setuptools>=18.5->html
5lib->xhtml2pdf)
Building wheels for collected packages: xhtml2pdf, pyPdf2
Running setup.py bdist_wheel for xhtml2pdf ... done
Stored in directory: C:\Documents and Settings\Administrator\Local Settings\Application Data\pip\Cache\wheels\ec\eb\db
\13a2be9c15f492c65086709a69042924ebfb7aa4c4cc7284f1
Running setup.py bdist_wheel for pyPdf2 ... done
Stored in directory: C:\Documents and Settings\Administrator\Local Settings\Application Data\pip\Cache\wheels\86\6a\6a
\1ce004a5996894d33d93e1fb1b67c30973dc945cc5875a1dd0
Successfully built xhtml2pdf pyPdf2
Installing collected packages: webencodings, html5lib, pyPdf2, reportlab, xhtml2pdf
Successfully installed html5lib-0.999999999 pyPdf2-1.26.0 reportlab-3.4.0 webencodings-0.5.1 xhtml2pdf-0.0.6 C:\Documents and Settings\Administrator>pip install html5lib==1.0b8
Collecting html5lib==1.0b8
Downloading html5lib-1.0b8.tar.gz (889kB)
100% |████████████████████████████████| 890kB 311kB/s
Requirement already satisfied: six in d:\anaconda2\lib\site-packages (from html5lib==1.0b8)
Building wheels for collected packages: html5lib
Running setup.py bdist_wheel for html5lib ... done
Stored in directory: C:\Documents and Settings\Administrator\Local Settings\Application Data\pip\Cache\wheels\d4\d1\0b
\a6b6f9f204af55c9bb8c97eae2a78b690b7150a7b850bb9403
Successfully built html5lib
Installing collected packages: html5lib
Found existing installation: html5lib 0.999999999
Uninstalling html5lib-0.999999999:
Successfully uninstalled html5lib-0.999999999
Successfully installed html5lib-1.0b8 C:\Documents and Settings\Administrator>

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