use outer_locals

Author: aoloe

eval-file-pyqt5-set-value/README.md

@@ -4,8 +4,8 @@ The C++ program defines a `set_the_answer` lambda that can receive the new value
 
 The Python script creates an (PyQt) application that is showing an input dialog. If the _Ok_ button is pressed, the `set_the_answer()` function passes the value to the C++ code.
 
-It is to be noted that `pybind11` is passing the `set_the_answer()` as a local to the _eval_ (exec, in reality) Python context: we need to explicitely pass the function to the `get_the_value()` to make it visible inside of it.  
-(This is becaue Python executes the code as if it was in a class environment... I've been told.)
+One big warning: the `set_the_answer()` function is not visisble inside of `get_the_value()`: `pybind11` is passing the `set_the_answer()` as a local to the _eval_ (exec, in reality) Python context: we need to explicitely pass the outer local context to the `get_the_value()`, and  visible inside of it.  
+(I've been told that this is becaue Python executes the code as if it was in a class environment...)
 
 ~~~.sh
 $ mkdir build

eval-file-pyqt5-set-value/python/input-number.py

@@ -1,8 +1,8 @@
-def get_the_value(locals_):
+def get_the_value(outer_locals):
     from PyQt5.QtWidgets import QInputDialog
     num, ok = QInputDialog.getInt(None, 'The number to be set', 'enter a number')
     if ok:
-        locals_['set_the_answer'](num)
+        outer_locals['set_the_answer'](num)
 
 if __name__ == '__main__':
     from PyQt5.QtWidgets import QApplication