ValueError: unsupported format character '
python
Solution
Any `%` in `content` is seen as a formatting placeholder. Double any that are not a placeholder:
content=r'''\documentclass{article}
\usepackage{graphicx,amsmath}
\begin{document}
\noindent\rotatebox{180}{\vbox{%%
%(equation)s
}%%
}
\end{document}
'''
Otherwise the `%` at the end of the `\noindent\rotatebox{180}{\vbox{%` line is seen together with the `\n` newline as a formatting character, hence the exception with an embedded newline.
Problem
I got most of the following code from here: Generating pdf-latex with python script ``` #!/usr/bin/env python from __future__ import division from functions import * import shlex #from Utilities import * import os import argparse import subprocess equation = '\begin{equation*}1 + \gamma\lambda B/2\end{equation*}' content=r'''\documentclass{article} \usepackage{graphicx,amsmath} \begin{document} \noindent\rotatebox{180}{\vbox{% %(equation)s }% } \end{document} ''' parser=argparse.ArgumentParser() parser.add_argument('-e', '--equation', default=equation) args=parser.parse_args() content%args.__dict__ print content%args.__dict__ ``` running this code gives me the following error: ``` Traceback (most recent call last): File "latex.py", line 29, in <module> content%args.__dict__ ValueError: unsupported format character ' ' (0xa) at index 104 ``` anybody know what's going wrong? I've got the same error from other methods of rotating the page.