32 panels max (up from 10), and update Release Notes

RELEASE_NOTES.md

@@ -1,6 +1,20 @@
 ####
 ---
 
+### <a name="v0.12.7a17"></a>v0.12.7a17 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; released 2021-04-23
+
+- <a name="v0.12.7a17"></a>v0.12.7a17 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; merged 2021-04-22
+  - max panels to 32 (up from 10) ([Issue #377](https://github.com/matplotlib/mplfinance/issues/377))
+- <a name="v0.12.7a16"></a>v0.12.7a16 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; merged 2021-04-22
+  - New plot type **`step`** for step/staircase lines in `mpf.make_addplot()`  (Thank you [@pankaj3009](https://github.com/pankaj3009))
+- <a name="v0.12.7a15"></a>v0.12.7a15 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; merged 2021-04-22
+  - Add **`reversal`** parameter to Point and Figure charts.  (Thank you [Caleb Coffin](https://github.com/coffincw), for coding up [Issue 368](https://github.com/matplotlib/mplfinance/issues/368))
+
+- <a name="v0.12.7a14"></a>v0.12.7a14 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; merged 2021-04-18<br>
+  <a name="v0.12.7a13"></a>v0.12.7a13 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; merged 2021-04-18
+  - Allow **`os.PathLike`** (**`pathlib.Path`**) objects in **`savefig`** (Thank you [Matt Stancliff](https://github.com/mattsta))
+
+
 ### <a name="v0.12.7a12"></a>v0.12.7a12 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; released 2021-04-09
 
 - <a name="v0.12.7a12"></a>v0.12.7a12 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; merged 2021-04-08

src/mplfinance/_arg_validators.py

@@ -301,7 +301,7 @@ def _process_kwargs(kwargs, vkwargs):
     return config
 
 def _valid_panel_id(panid):
-    return panid in ['main','lower'] or (isinstance(panid,int) and panid >= 0 and panid < 10)
+    return panid in ['main','lower'] or (isinstance(panid,int) and panid >= 0 and panid < 32)
 
 def _scale_padding_validator(value):
     if isinstance(value,(int,float)):

src/mplfinance/_panels.py

@@ -7,8 +7,8 @@ def _build_panels( figure, config ):
     Create and return a DataFrame containing panel information
     and Axes objects for each panel, etc.
 
-    We allow up to 10 panels, identified by their panel id (panid)
-    which is an integer 0 through 9.  
+    We allow up to 32 panels, identified by their panel id (panid)
+    which is an integer 0 through 31.  
 
     Parameters
     ----------
@@ -101,8 +101,8 @@ def _build_panels( figure, config ):
             raise ValueError('inferred panel list is missing panels: '+str(missing))
 
     else:
-        if not isinstance(num_panels,int) or num_panels < 1 or num_panels > 10:
-            raise ValueError('num_panels must be integer 1 to 10, but is "'+str(volume_panel)+'"')
+        if not isinstance(num_panels,int) or num_panels < 1 or num_panels > 32:
+            raise ValueError('num_panels must be integer 1 to 32, but is "'+str(volume_panel)+'"')
         pset = range(0,num_panels)
 
     _nones = [None]*len(pset)

src/mplfinance/_version.py

@@ -1,5 +1,5 @@
 
-version_info = (0, 12, 7, 'alpha', 16)
+version_info = (0, 12, 7, 'alpha', 17)
 
 _specifier_ = {'alpha': 'a','beta': 'b','candidate': 'rc','final': ''}