Added notebook style vspace work-around

IPython/nbconvert/templates/latex/latex_sphinx_article.tplx

@@ -1,40 +1,44 b''
 
 % Default to the python output style
 ((* if not cell_style is defined *))
     ((* set cell_style = 'python_style.tplx' *))
 ((* endif *))
 
 ((* extends 'latex_article.tplx' *))
 
 %===============================================================================
 % Latex Sphinx Article
 %===============================================================================
 
 ((* block docclass *))
     % Make sure that the sphinx doc style knows who it inherits from.
     \def\sphinxdocclass{article}
 
     % Declare the document class
     \documentclass[letterpaper,10pt,english]{((( resources.sphinx.texinputs | posix_path )))/sphinxhowto}
 ((* endblock docclass *))
 
 ((* block packages *))
     ((* block chstyle *))
     \usepackage[Bjarne]{((( resources.sphinx.texinputs | posix_path )))/fncychap}
     ((* endblock chstyle *))
 
     \usepackage{((( resources.sphinx.texinputs | posix_path )))/sphinx}
 
     ((( super() )))
 ((* endblock packages *))    
 
 ((* block commands *))
     ((( super() )))
 
     % Override to specify your own logo
     ((* block logo *))\newcommand{\sphinxlogo}{}((* endblock logo *))
 
     % Make the index page of the document.
     \makeindex
 
 ((* endblock commands *))
+
+% Work around to fix vertical spacing issues with the notebook style.
+((* block extra_input_spacing *))\vspace{-1\baselineskip}((* endblock extra_input_spacing *))
+((* block extra_output_spacing *))\vspace{-0.6\baselineskip}((* endblock extra_output_spacing *))