DOC: Add documentation to Text.set_fontfamily

bharatr21 · bharatr21 · commit 0ccb51f77527 · 2019-04-13T23:15:27.000+05:30
diff --git a/lib/matplotlib/text.py b/lib/matplotlib/text.py
@@ -976,6 +976,11 @@ def set_fontfamily(self, fontname):
         strings in decreasing priority.  Each string may be either a real font
         name or a generic font class name.  If the latter, the specific font
         names will be looked up in the corresponding rcParams.
+        Defaults to `matplotlib.rcParams['font.family']`.
+        If a `Text` instance is constructed with `fontfamily=None`, then the
+        font is set to `matplotlib.rcParams['font.family']`, and the
+        same is done when `set_fontfamily()` is called on an existing
+        `Text` instance.
 
         Parameters
         ----------
