DOC: fix SyntaxError in doc build on Windows (#26499)

simonjayhawkins · TomAugspurger · commit 65eac80dd411 · 2019-05-23T08:04:56.000-05:00
diff --git a/doc/source/conf.py b/doc/source/conf.py
@@ -319,7 +319,7 @@
    pd.options.display.max_rows = 15
 
    import os
-   os.chdir('{}')
+   os.chdir(r'{}')
 """.format(os.path.dirname(os.path.dirname(__file__)))
 
 
