ensure doctest collection does not fail

Author: jorisvandenbossche

pandas/core/config.py

@@ -384,7 +384,7 @@ class option_context(object):
     --------
 
     >>> with option_context('display.max_rows', 10, 'display.max_columns', 5):
-            ...
+    ...     ...
 
     """
 

pandas/util/testing.py

@@ -554,7 +554,7 @@ def _valid_locales(locales, normalize):
 
 
 def capture_stdout(f):
-    """
+    r"""
     Decorator to capture stdout in a buffer so that it can be checked
     (or suppressed) during testing.
 
@@ -572,7 +572,6 @@ def capture_stdout(f):
     --------
 
     >>> from pandas.util.testing import capture_stdout
-    >>>
     >>> import sys
     >>>
     >>> @capture_stdout
@@ -602,7 +601,7 @@ def wrapper(*args, **kwargs):
 
 
 def capture_stderr(f):
-    """
+    r"""
     Decorator to capture stderr in a buffer so that it can be checked
     (or suppressed) during testing.
 
@@ -620,7 +619,6 @@ def capture_stderr(f):
     --------
 
     >>> from pandas.util.testing import capture_stderr
-    >>>
     >>> import sys
     >>>
     >>> @capture_stderr
@@ -2304,7 +2302,7 @@ def stdin_encoding(encoding=None):
 
 def assert_raises_regex(_exception, _regexp, _callable=None,
                         *args, **kwargs):
-    r"""
+    """
     Check that the specified Exception is raised and that the error message
     matches a given regular expression pattern. This may be a regular
     expression object or a string containing a regular expression suitable
@@ -2330,6 +2328,7 @@ def assert_raises_regex(_exception, _regexp, _callable=None,
     AssertionError: "pear" does not match "'apple'"
 
     You can also use this in a with statement.
+
     >>> with assert_raises_regex(TypeError, 'unsupported operand type\(s\)'):
     ...     1 + {}
     >>> with assert_raises_regex(TypeError, 'banana'):