Fix updating latex_elements if not given by user

mgeier · mgeier · commit 702441985f86 · 2018-12-15T23:10:55.000+01:00
Fixes #266.
diff --git a/src/nbsphinx.py b/src/nbsphinx.py
@@ -1781,7 +1781,7 @@ def setup(app):
     )
 
     # Add LaTeX definitions to preamble
-    latex_elements = app.config._raw_config['latex_elements']
+    latex_elements = app.config._raw_config.setdefault('latex_elements', {})
     latex_elements['preamble'] = '\n'.join([
         LATEX_PREAMBLE,
         latex_elements.get('preamble', ''),

Original file line number	Diff line number	Diff line change
`@@ -1781,7 +1781,7 @@ def setup(app):`
`1781`	`1781`	`)`
`1782`	`1782`
`1783`	`1783`	`# Add LaTeX definitions to preamble`
`1784`		`- latex_elements = app.config._raw_config['latex_elements']`
	`1784`	`+ latex_elements = app.config._raw_config.setdefault('latex_elements', {})`
`1785`	`1785`	`latex_elements['preamble'] = '\n'.join([`
`1786`	`1786`	`LATEX_PREAMBLE,`
`1787`	`1787`	`latex_elements.get('preamble', ''),`