I do not wish to export the entire notebook as a pdf - I've searched and found solutions for that problem. I want to only export the plots in my notebook to a pdf. Is there a Python library does allows for this?
The Jupyter nbconvert command allows specifying a custom template.
Michael Goerz has written a full custom template for LaTeX/PDFs here:
https://gist.github.com/goerz/d5019bedacf5956bcf03ca8683dc5217
To only print the graphs, you could modify it to blank out any sections other than the output cells, like so:
% Tell the templating engine what output template we want to use.
((* extends 'article.tplx' *))
% Template will setup imports, etc. as normal unless we override these sections.
% Leave title blank
((* block title -*))
((*- endblock title *))
% Leave author blank
((* block author -*))
((* endblock author *))
% Etc.
((* block maketitle *))
((* endblock maketitle *))
% Don't show "input" prompt
((*- block in_prompt -*))
((*- endblock in_prompt -*))
% Hide input cells
((*- block input -*))
((*- endblock input -*))
% Don't show "output" prompt
((*- block output_prompt -*))
((*- endblock output_prompt -*))
% Let template render output cells as usual
To generate a LaTeX file, save the above as custom_article.tplx and run:
jupyter nbconvert --to=latex --template=custom_article.tplx file.ipynb
To generate the LaTeX file and PDF in a single command:
jupyter nbconvert --to=pdf --template=custom_article.tplx file.ipynb
This is probably not the most elegant answer, but it's also extremely flexible in case you want to do more than just put each plot on a page. You can use LaTeX to collect all graphs in a single pdf after exporting them as images. Here's an example where we save the graphs as report/imgs/*.png, then write a report/report.tex file and compile it with pdflatex into a final report/report.pdf.
import numpy as np
import matplotlib.pyplot as plt
Create and save two images:
plt.bar(np.arange(5), np.arange(5)*2)
plt.savefig('report/imgs/fig1.png')
plt.bar(np.arange(6), np.arange(6)**2 - 1, color = 'g')
plt.savefig('report/imgs/fig2.png')
Write a .tex file to display both images:
img_data = ['fig1', 'fig2']
latex_src = '\\documentclass{article}\n'
latex_src += '\\usepackage{graphicx}\n'
latex_src += '\\graphicspath{{./imgs/}}\n'
latex_src += '\\begin{document}\n'
for image in img_data:
latex_src += '\t\\begin{figure}[h]\n'
latex_src += f'\t\t\\includegraphics{{{image}}}\n'
latex_src += '\t\\end{figure}\n'
latex_src += '\\end{document}'
with open('report/report.tex', 'w', encoding = 'utf-8') as handle:
handle.write(latex_src)
print(latex_src)
\documentclass{article}
\usepackage{graphicx}
\graphicspath{{./imgs/}}
\begin{document}
\begin{figure}[h]
\includegraphics{fig1}
\end{figure}
\begin{figure}[h]
\includegraphics{fig2}
\end{figure}
\end{document}
And finally compile:
!cd report && pdflatex report.tex
I was trying to display photos and pdf files in a django project using <embed> but pdf file is not displaying
Here is what i was doing
This is view function
#login_required
def view_documents(request):
students = Student.objects.filter(user=request.user)
return render(request, 'student/view_documents.html',{'students':students})
and then I used for tag in template
{% for student in students %}
#lines of code
{% endfor %}
and to display the pdf file i have used
<embed src="{{student.adhar_card_pdf.url}}" width="800px" height="400px" type="application/pdf"/>
but it was showing some kind of error like localhost refused to connect
i also used iframe
<iframe src="{{student.adhar_card_pdf.url}}" style="width:718px; height:700px;" frameborder="0"></iframe>
But image is displaying in the browser using same code without any error
<embed src="{{student.photo_jpg.url}}" width="230px" height="250px" />
Why pdf file is not displaying ?? Please help me
Thanx in advance.
Edited: In console it is showing -- Refused to display '' in a frame because it set 'X-Frame-Options' to 'deny'.
This is how it is displaying pdf
X_FRAME_OPTIONS = 'SAMEORIGIN'
Insert the above line in settings.py just before the MIDDLEWARE section
and for the file path in embed tag write path as
{{student.file.get.photo_jpg.url}}
And then give a hard reset in Chrome or any browser you are using.
It worked for me I hope it works for you as well.
I have a python web application with jinja2 templates. I am using pybabel for localization. When using the pybabel extract command, it exports everything exactly as intended, EXCEPT for any files which use the jinja2 autoescape tag.
My babel.cfg file has the following line:
extensions=jinja2.ext.autoescape,jinja2.ext.with_
And the extract command I am using is:
pybabel extract -F ./babel.cfg -o ./locale/messages.pot ./
I have a file called settings.html, which has the following tag:
{% autoescape false %}
{% endautoescape %}
And pybabel lists this file in the console, in the list of files it extracts from:
extracting messages from templates/cfg/settings.html
But, when I check my pot file, there are no translations from settings.html.
If I delete the autoescape tag from settings.html, then re-run the pybabel extract command, then it correctly extracts the translations.
So there must be something up with use of autoescape.
Any clues?
Currently with the following command of my .ipynb file:
$ ipython nbconvert --to latex --post PDF Untitled1.ipynb --SphinxTransformer.author="John Doe"
[NbConvertApp] Using existing profile dir: u'/Users/me-macmini/.ipython/profile_default'
[NbConvertApp] Converting notebook Untitled1.ipynb to latex
[NbConvertApp] Support files will be in Untitled1_files/
[NbConvertApp] Loaded template article.tplx
[NbConvertApp] Writing 12876 bytes to Untitled1.tex
[NbConvertApp] Building PDF
[NbConvertApp] Running pdflatex 3 times: [u'pdflatex', u'Untitled1.tex']
[NbConvertApp] Running bibtex 1 time: [u'bibtex', u'Untitled1']
[NbConvertApp] WARNING | bibtex had problems, most likely because there were no citations
[NbConvertApp] Removing temporary LaTeX files
[NbConvertApp] PDF successfully created
With IPython 2.1, I got the latex file that are formatted with the standard classical style:
My questions are:
What should I do so that I can get the following style, right from ipython command?
Why the above command doesn't enable the author to appear?
Like the OP, I'm not very happy with IPython 2 output from nbconvert. Since the converter no longer uses the Sphinx documentclass or the Sphinx preprocessing system, you can't use the SphinxTransformer calls on the nbconverter line.
The Rude-and-Crude Way
Drop --post PDF so nbconvert creates just the .tex file. Then, edit the .tex file to make it prettier. Then, run pdflatex on it a few times.
To make yourself the author, add a line like the following right after the \title line in the he .tex file:
\author{Never Saint}
You can find nice templates to help you make output look like what you want at latextemplates.com.
The Root-User's Way
Another approach is to roll a new template, starting with the ones in .../IPython/nbconvert/templates/latex. As the root user, add an article1.tplx file next to article.tplx and report.tplx. The following version creates a different output style that I personally find useful. The "margins" block produces front matter for LaTex, and the "predoc" block produces commands and text that are inserted at the start of the document. I blank out the "maketitle" block so there's no title page. Delete my empty "maketitle" block if you want to have a title page with an author and a date.
Usage: nbconvert --to latex yourNotebook.ipynb --template article1 --to PDF
% Default to the notebook output style
((* if not cell_style is defined *))
((* set cell_style = 'style_ipython.tplx' *))
((* endif *))
% Inherit from the specified cell style.
((* extends cell_style *))
%===============================================================================
% Latex article1, based on Article
%===============================================================================
((* block docclass *))
\documentclass{article}
((* endblock docclass *))
((* block margins *))
\usepackage{blindtext}
\usepackage{mathptmx}% Times Roman font
\usepackage[scaled=.90]{helvet}
\usepackage{xcolor}
\usepackage{titlesec}
\titleformat{\title}[display]
{\normalfont\sffamily\huge\bfseries\color{blue}}
{\titlename}{20pt}{\Huge}
\titleformat{\section}
{\normalfont\sffamily\Large\bfseries\color{darkgray}}
{\subsection}{1em}{}
\titleformat{\subsection}
{\normalfont\sffamily\Large\bfseries\color{darkgray}}
{\thesubsection}{1em}{}
\parindent=0pt
\parskip=6pt
((* endblock margins *))
((* block predoc *))
\begin{document}
\pagestyle{plain}
\thispagestyle{plain}
\pagenumbering{arabic}
\setcounter{page}{5}
\lfoot{\copyright 2014}
This document is composed as an
\href{http://ipython.org/notebook.html}{IPython} notebook. The printed
version of this document was generated from the \texttt{IPython}
notebook, using the \texttt{ipython nbconvert} utility to generate a
\texttt{Latex} document.
((* block maketitle *))((* endblock maketitle *))
((* block author *))\author{Put Your Name Here}((* endblock author *))
((* endblock predoc *))
Solving this problem is a real pain-in-the-butt. I also liked the iPython 0.x and 1.x styling. If you must have it, here's how you can do it.
Folks mentioned that you can create your own template. Well, iPython 1.x had perfectly good templates, so let's use them. I'm going to assume you have root on your machine, because we're going to hack our iPython's templates/latex directory.
# set for your python/ipython install
PYTHONLIB=/usr/lib64/python2.7/site-packages/
cd ${PYTHONLIB}/IPython/nbconvert/templates/latex
# download the files
for tplx in sphinx.tplx latex_article.tplx latex_book.tplx latex_basic.tplx; do
wget https://raw.githubusercontent.com/ipython/ipython/1.x/IPython/nbconvert/templates/latex/${tplx} -O old_${tplx}
done
# update for some renaming that we just did
for tplx in old_latex_*.tplx; do
sed -i 's|sphinx.tplx|old_sphinx.tplx|' ${tplx}
done
Now, the next step is to apply a patch to sphinx.tplx.
% cat sphinx_patch.patch
--- old_sphinx.tplx 2015-02-13 14:52:14.000000000 -0500
+++ mod_old_sphinx.tplx 2015-02-13 14:53:00.000000000 -0500
## -71,6 +71,7 ##
% Pygments requirements
\usepackage{fancyvrb}
\usepackage{color}
+
% ansi colors additions
\definecolor{darkgreen}{rgb}{.12,.54,.11}
\definecolor{lightgray}{gray}{.95}
## -83,6 +84,29 ##
\definecolor{lightpurple}{rgb}{0.87,0.63,0.87}
\definecolor{lightcyan}{rgb}{0.5,1.0,0.83}
+ %
+ % MEF NEW NEW MEF
+ %
+ \DefineVerbatimEnvironment{Highlighting}{Verbatim}{commandchars=\\\{\}}
+ \newenvironment{Shaded}{}{}
+ \newcommand{\KeywordTok}[1]{\textcolor[rgb]{0.00,0.44,0.13}{\textbf{{#1}}}}
+ \newcommand{\DataTypeTok}[1]{\textcolor[rgb]{0.56,0.13,0.00}{{#1}}}
+ \newcommand{\DecValTok}[1]{\textcolor[rgb]{0.25,0.63,0.44}{{#1}}}
+ \newcommand{\BaseNTok}[1]{\textcolor[rgb]{0.25,0.63,0.44}{{#1}}}
+ \newcommand{\FloatTok}[1]{\textcolor[rgb]{0.25,0.63,0.44}{{#1}}}
+ \newcommand{\CharTok}[1]{\textcolor[rgb]{0.25,0.44,0.63}{{#1}}}
+ \newcommand{\StringTok}[1]{\textcolor[rgb]{0.25,0.44,0.63}{{#1}}}
+ \newcommand{\CommentTok}[1]{\textcolor[rgb]{0.38,0.63,0.69}{\textit{{#1}}}}
+ \newcommand{\OtherTok}[1]{\textcolor[rgb]{0.00,0.44,0.13}{{#1}}}
+ \newcommand{\AlertTok}[1]{\textcolor[rgb]{1.00,0.00,0.00}{\textbf{{#1}}}}
+ \newcommand{\FunctionTok}[1]{\textcolor[rgb]{0.02,0.16,0.49}{{#1}}}
+ \newcommand{\RegionMarkerTok}[1]{{#1}}
+ \newcommand{\ErrorTok}[1]{\textcolor[rgb]{1.00,0.00,0.00}{\textbf{{#1}}}}
+ \newcommand{\NormalTok}[1]{{#1}}
+ %
+ % MEF NEW NEW MEF
+ %
+
% Needed to box output/input
\usepackage{tikz}
\usetikzlibrary{calc,arrows,shadows}
## -374,7 +398,6 ##
((* if resources.sphinx.centeroutput *))
\begin{center}
((* endif -*))
-((( output.latex | strip_math_space )))
((*- if resources.sphinx.centeroutput *))
\end{center}
((* endif -*))
Cut and paste the above code to create the patch file. Then you can apply it with:
patch -p0 < sphinx_patch.patch
We're not done yet. Those templates need some support.
We'll do this back in the directory where the notebook you want to convert lives. We're going to create two python files. The first (I called it oldschool.py) does the preprocessing necessary to use the older templates. It is mostly scraped out of version 1.x iPython's nbconvert/transformers/sphinx.py and hacked to be a modern Preprocessor:
from __future__ import print_function, absolute_import
from IPython.nbconvert.preprocessors.base import Preprocessor
from IPython.utils.traitlets import Bool, Unicode
import os
class MySphinxyLatexPreprocessor(Preprocessor):
interactive = Bool(False, config=True, help="""
Allows you to define whether or not the Sphinx exporter will prompt
you for input during the conversion process. If this is set to false,
the author, version, release, date, and chapter_style traits should
be set.
""")
author = Unicode("Unknown Author", config=True, help="Author name")
version = Unicode("", config=True, help="""
Version number
You can leave this blank if you do not want to render a version number.
Example: "1.0.0"
""")
release = Unicode("", config=True, help="""
Release name
You can leave this blank if you do not want to render a release name.
Example: "Rough Draft"
""")
publish_date = Unicode("", config=True, help="""
Publish date
This is the date to render on the document as the publish date.
Leave this blank to default to todays date.
Example: "June 12, 1990"
""")
chapter_style = Unicode("Bjarne", config=True, help="""
Sphinx chapter style
This is the style to use for the chapter headers in the document.
You may choose one of the following:
"Bjarne" (default)
"Lenny"
"Glenn"
"Conny"
"Rejne"
"Sonny" (used for international documents)
""")
output_style = Unicode("notebook", config=True, help="""
Nbconvert Ipython
notebook input/output formatting style.
You may choose one of the following:
"simple (recommended for long code segments)"
"notebook" (default)
""")
center_output = Bool(False, config=True, help="""
Optional attempt to center all output. If this is false, no additional
formatting is applied.
""")
use_headers = Bool(True, config=True, help="""
Whether not a header should be added to the document.
""")
#Allow the user to override the title of the notebook (useful for
#fancy document titles that the file system doesn't support.)
overridetitle = Unicode("", config=True, help="")
def preprocess(self, nb, resources):
"""
Sphinx and LaTeX transformation to apply on each notebook.
Parameters
----------
nb : NotebookNode
Notebook being converted
resources : dictionary
Additional resources used in the conversion process. Allows
transformers to pass variables into the Jinja engine.
"""
# Generate Pygments definitions for Latex
from pygments.formatters import LatexFormatter
import sphinx
sphinxPath = os.path.realpath(os.path.join(sphinx.package_dir,
"texinputs"))
#
# MEF: set a latex resource
# old from latex preprocessor
# resources["latex"]["pygments_definitions"] = LatexFormatter(style='emacs').get_style_defs()
# Generate Pygments definitions for Latex
# old from sphinx transformer
# resources["sphinx"]["pygment_definitions"] = self._generate_pygments_latex_def()
# the mashup:
#resources["sphinx"]["pygment_definitions"] = \
# LatexFormatter(style='emacs').get_style_defs()
# used below
# MEF edit
resources.setdefault("sphinx", {})
#if not "sphinx" in resources:
# resources["sphinx"] = {}
#
# set sphinx resources
#
resources["sphinx"]["pygment_definitions"] = LatexFormatter().get_style_defs()
# LatexFormatter(style='emacs').get_style_defs()
# Try to use the traitlets.
resources["sphinx"]["author"] = self.author
resources["sphinx"]["version"] = self.version
resources["sphinx"]["release"] = self.release
# Use todays date if none is provided.
if self.publish_date:
resources["sphinx"]["date"] = self.publish_date
elif len(resources['metadata']['modified_date'].strip()) == 0:
resources["sphinx"]["date"] = date.today().strftime(text.date_format)
else:
resources["sphinx"]["date"] = resources['metadata']['modified_date']
# Sphinx traitlets.
resources["sphinx"]["chapterstyle"] = self.chapter_style
resources["sphinx"]["outputstyle"] = self.output_style
resources["sphinx"]["centeroutput"] = self.center_output
resources["sphinx"]["header"] = self.use_headers
# Find and pass in the path to the Sphinx dependencies.
resources["sphinx"]["texinputs"] = sphinxPath
#
# MEF edit
#
if self.overridetitle and len(self.overridetitle.strip()):
resources['metadata']['name'] = self.overridetitle.strip()
return nb, resources
The last file is easy ({config.py}).
c = get_config()
c.Exporter.preprocessors = ['oldschool.MySphinxyLatexPreprocessor']
Now, at the command line, you can do:
ipython nbconvert example.ipynb --to latex --config config.py --template old_latex_article.tplx --post PDF
ipython nbconvert example.ipynb --to latex --config config.py --template old_latex_book.tplx --post PDF
If you want to use basic (aka, {the old_latex_basic.tplx} file), you'll have to hack in the the main block of code we added to sphinx.tplx (the portion between the % MEF NEW NEW MEF comments).
You probably have to either select a different template, or build your own. Try e.g. adding the --template book argument to your nbconvert command.
Since IPython 2 doesn't have the book template anymore, you'll probably need to roll your own.
I have written a little survey using Python and CGI. I am trying to show a picture using the normal <img> tag, But even-though the picture is in the same directory as my cgi script, my script cannot show it. I also changed the header to this:
print "Content-type: text/html; image/jpeg"
print
print """<html>
<head>
<title>You are going to be redirected</title>
</head>
<body bgcolor = #14b585>
<br>
<p align=center><font>Helloooo</font></p>
<img src="cat.jpeg" alt="cat" width="304" height="228"/>
<form action="./sample.py" method="post">
<p align=center><input type="submit" value="YES!" /></p>
</form>
</body>
</html>
"""
Why?(it is a very small jpg file)
print "Content-type: text/html; image/jpeg"
Don't change the header to that. You can't have multiple content types for a single document (multipart documents excluded, but browsers don't support them and that isn't the right format).
You are delivering an HTML document with an reference to an image in it. The image will be a separate request and response.
print "Content-type: text/html"
Or, better:
print "Content-type: text/html; charset=utf-8"
(Assuming you are using utf-8, which you should be).
print """<html>
Your Doctype is missing. This will trigger quirks mode, which is undesirable. You also have a great deal of legacy presentational markup that should be replaced by CSS.
<img src="cat.jpeg" alt="cat" width="304" height="228"/>
The context suggests that the image is decorative, so the alternative text should probably be "" (see Alt texts in IMGS), but there is nothing wrong with the actual reference to the image.
But even-though the picture is in the same directory as my cgi script
Since the HTML seems to be OK. You need to check that the image is.
Can you reach the image by typing the URL in directly?
What do the web server logs say when you try?
It is possible that your server is configured to try to treat everything in the directory as an executable, no matter what the file extension, so it might be trying to run the image as if it were a CGI program (which will obviously fail). If so, then you could either move the image or change the configuration of the server.
And I've just noticed this comment:
I did this in my browser: localhost/cgi-bin/cat.jpg and it got an error, I checked the logs, it Exec format error: exec of '/home/hossein/public_html/cgi-bin/cat.jpg' failed
That is what is happening. Moving the image is the simplest solution.
your apache was configured to use the cgi-bin directory as an CGI scripts folder, so any request that trying to get a file from this folder apache try to execute it as an CGI script. to make your image visible move it to the www/html folder.