From ee1683fc3d9e45de315384722c7c484fdd97376a Mon Sep 17 00:00:00 2001
From: acxz <17132214+acxz@users.noreply.github.com>
Date: Sat, 11 Apr 2020 20:10:29 -0400
Subject: [PATCH] ensure interpreter is initialized for suptitle & subplot

---
 matplotlibcpp.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/matplotlibcpp.h b/matplotlibcpp.h
index 0112344..9649010 100644
--- a/matplotlibcpp.h
+++ b/matplotlibcpp.h
@@ -1611,6 +1611,9 @@ inline void tick_params(const std::map<std::string, std::string>& keywords, cons
 
 inline void subplot(long nrows, long ncols, long plot_number)
 {
+    // Make sure interpreter is initialized
+    detail::_interpreter::get();
+    
     // construct positional args
     PyObject* args = PyTuple_New(3);
     PyTuple_SetItem(args, 0, PyFloat_FromDouble(nrows));
@@ -1670,6 +1673,9 @@ inline void title(const std::string &titlestr, const std::map<std::string, std::
 
 inline void suptitle(const std::string &suptitlestr, const std::map<std::string, std::string> &keywords = {})
 {
+    // Make sure interpreter is initialized
+    detail::_interpreter::get();
+    
     PyObject* pysuptitlestr = PyString_FromString(suptitlestr.c_str());
     PyObject* args = PyTuple_New(1);
     PyTuple_SetItem(args, 0, pysuptitlestr);