8000 Fix python3.8 segfault for the named_* family of functions · Autonomousanz/matplotlib-cpp@d612b52 · GitHub
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lavalava
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Fix python3.8 segfault for the named_* family of functions
The fix might be more widely required, but in particular python3.8 would segfault when PyUnicode_FromString() was called before the interpreter was initialized. Which is expected tbh, but a change in behaviour from earlier versions.
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‎matplotlibcpp.h

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@@ -1174,6 +1174,9 @@ bool errorbar(const std::vector<NumericX> &x, const std::vector<NumericY> &y, co
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template<typename Numeric>
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bool named_plot(const std::string& name, const std::vector<Numeric>& y, const std::string& format = "")
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{
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// Make sure python is initialized.
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detail::_interpreter::get();
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PyObject* kwargs = PyDict_New();
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PyDict_SetItemString(kwargs, "label", PyString_FromString(name.c_str()));
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@@ -1198,6 +1201,9 @@ bool named_plot(const std::string& name, const std::vector<Numeric>& y, const st
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template<typename Numeric>
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bool named_plot(const std::string& name, const std::vector<Numeric>& x, const std::vector<Numeric>& y, const std::string& format = "")
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{
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// Make sure python is initialized.
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detail::_interpreter::get();
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PyObject* kwargs = PyDict_New();
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PyDict_SetItemString(kwargs, "label", PyString_FromString(name.c_str()));
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@@ -1223,6 +1229,9 @@ bool named_plot(const std::string& name, const std::vector<Numeric>& x, const st
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template<typename Numeric>
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bool named_semilogx(const std::string& name, const std::vector<Numeric>& x, const std::vector<Numeric>& y, const std::string& format = "")
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{
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// Make sure python is initialized.
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detail::_interpreter::get();
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PyObject* kwargs = PyDict_New();
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PyDict_SetItemString(kwargs, "label", PyString_FromString(name.c_str()));
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@@ -1248,6 +1257,9 @@ bool named_semilogx(const std::string& name, const std::vector<Numeric>& x, cons
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template<typename Numeric>
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bool named_semilogy(const std::string& name, const std::vector<Numeric>& x, const std::vector<Numeric>& y, const std::string& format = "")
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{
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// Make sure python is initialized.
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detail::_interpreter::get();
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PyObject* kwargs = PyDict_New();
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PyDict_SetItemString(kwargs, "label", PyString_FromString(name.c_str()));
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@@ -1273,6 +1285,9 @@ bool named_semilogy(const std::string& name, const std::vector<Numeric>& x, cons
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template<typename Numeric>
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bool named_loglog(const std::string& name, const std::vector<Numeric>& x, const std::vector<Numeric>& y, const std::string& format = "")
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{
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// Make sure python is initialized.
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detail::_interpreter::get();
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PyObject* kwargs = PyDict_New();
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PyDict_SetItemString(kwargs, "label", PyString_FromString(name.c_str()));
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