Snlite aliases available to ops (#4555)

* make aliases available to ops * update comment * add pip install script example * comment out stuff

Snlite aliases available to ops (#4555)
* make aliases available to ops * update comment * add pip install script example * comment out stuff
f8cba44a · Dealga McArdle · GitHub · 0ff2c7cf · f8cba44a · f8cba44a
--- a/node_scripts/SNLite_templates/templates/operator_example.py
+++ b/node_scripts/SNLite_templates/templates/operator_example.py
@@ -3,8 +3,8 @@ in verts v
 """
 def my_operator(self, context):
-    # this will have a limited knowledge of the globally available vars
+    # this will have a limited knowledge of the globally available variables
-    # import bpy   if you need stuff from bpy ..etc.
+    # the aliases will be available. ( see self.snlite_aliases.keys())
    print(self, context, self.inputs['verts'].sv_get())
    return {'FINISHED'}

--- a/node_scripts/SNLite_templates/templates/pip_install_example.py
+++ b/node_scripts/SNLite_templates/templates/pip_install_example.py
+"""
+in package t
+"""
+import sys
+import os
+import subprocess
+def install_package(package):
+    if not isinstance(package, list):
+        package = [package]
+    subprocess.call([os.path.join(sys.prefix, 'bin', 'python.exe'), "-m", "pip", "install", *package])
+def install_whl(package_path):
+    subprocess.call([os.path.join(sys.prefix, 'bin', 'python.exe'), "-m", "pip", "install", f"{package_path}"])
+if __name__ == '__main__':
+    ## install_package(['--upgrade', 'pip']) # <-- may not be needed
+    # install_package('pandas')
+    ## install_package('gdal') # <-- may fail
+    ## install_package('fiona') # <-- may fail.
+    # install_whl(r"C:\Users\zeffi\Downloads\GDAL-3.4.2-cp310-cp310-win_amd64.whl")
+    # install_whl(r"C:\Users\zeffi\Downloads\Fiona-1.8.21-cp310-cp310-win_amd64.whl")
+    # install_package('geopandas')
+    # install_package('pygeos')   # <-- optional
+    # install_package('shapely')  # <-- optional
\ No newline at end of file
--- a/nodes/script/script1_lite.py
+++ b/nodes/script/script1_lite.py
@@ -151,6 +151,8 @@ class SvScriptNodeLite(bpy.types.Node, SverchCustomTreeNode):
                # here node refers to an ast node (a syntax tree node), not a node tree node
                ast_node = self.get_node_from_function_name(new_func_name)
                code = self.extract_code(ast_node, joined=True)
+                # locals().update(self.make_new_locals())  # maybe..
+                locals().update(self.snlite_aliases)
                exec(code, locals(), locals())
                callbacks[new_func_name] = locals()[new_func_name]
@@ -438,10 +440,9 @@ class SvScriptNodeLite(bpy.types.Node, SverchCustomTreeNode):
            func = local_variables.get(func_name)
            local_variables['socket_info'][func_name] = func
-    def process_script(self):
+    @property
-        __local__dict__ = self.make_new_locals()
+    def snlite_aliases(self):
-        locals().update(__local__dict__)
+        return {
-        locals().update({
            'vectorize': vectorize,
            'bpy': bpy,
            'np': np,
@@ -454,7 +455,12 @@ class SvScriptNodeLite(bpy.types.Node, SverchCustomTreeNode):
            'sv_njit_clear': sv_njit_clear,
            'bmesh_from_pydata': bmesh_from_pydata,
            'pydata_from_bmesh': pydata_from_bmesh
-        })
+        }
+    def process_script(self):
+        __local__dict__ = self.make_new_locals()
+        locals().update(__local__dict__)
+        locals().update(self.snlite_aliases)
        for output in self.outputs:
            locals().update({output.name: []})