DOC: define tips variable to avoid flake8-rst error

Author: afeld

doc/source/getting_started/comparison/includes/filtering.rst

@@ -3,6 +3,13 @@
 DataFrames can be filtered in multiple ways; the most intuitive of which is using
 :ref:`boolean indexing <indexing.boolean>`
 
+.. ipython:: python
+   :suppress:
+
+   # ensure tips is defined when scanning with flake8-rst
+   if 'tips' not in vars():
+       tips = {}
+
 .. ipython:: python
 
    tips[tips["total_bill"] > 10]

doc/source/getting_started/comparison/includes/if_then.rst

@@ -3,6 +3,13 @@
 The same operation in pandas can be accomplished using
 the ``where`` method from ``numpy``.
 
+.. ipython:: python
+   :suppress:
+
+   # ensure tips is defined when scanning with flake8-rst
+   if 'tips' not in vars():
+       tips = {}
+
 .. ipython:: python
 
    tips["bucket"] = np.where(tips["total_bill"] < 10, "low", "high")

doc/source/getting_started/comparison/includes/sorting.rst

@@ -3,6 +3,13 @@
 pandas objects have a :meth:`DataFrame.sort_values` method, which
 takes a list of columns to sort by.
 
+.. ipython:: python
+   :suppress:
+
+   # ensure tips is defined when scanning with flake8-rst
+   if 'tips' not in vars():
+       tips = {}
+
 .. ipython:: python
 
    tips = tips.sort_values(["sex", "total_bill"])

doc/source/getting_started/comparison/includes/time_date.rst

@@ -1,5 +1,12 @@
 :orphan:
 
+.. ipython:: python
+   :suppress:
+
+   # ensure tips is defined when scanning with flake8-rst
+   if 'tips' not in vars():
+       tips = {}
+
 .. ipython:: python
 
    tips["date1"] = pd.Timestamp("2013-01-15")