Handle import aliases

trans/tests/builtins_test.py

 # coding: utf-8
 
 from typon import is_cpp
-import sys
+from sys import stdout as truc
 
 test = (2 + 3) * 4
 glob = 5

trans/transpiler/__init__.py

@@ -386,14 +386,19 @@ class BlockVisitor(NodeVisitor):
             if alias.name == "typon":
                 yield ""
             else:
-                yield f'#include "python/{alias.name}.hpp"'
+                yield from self.import_module(alias.name)
                 #raise NotImplementedError(node)
 
+    def import_module(self, name: str) -> Iterable[str]:
+        yield f'#include "python/{name}.hpp"'
+
     def visit_ImportFrom(self, node: ast.ImportFrom) -> Iterable[str]:
         if node.module == "typon":
             yield ""
         else:
-            raise NotImplementedError(node)
+            yield from self.import_module(node.module)
+            for alias in node.names:
+                yield f"auto& {alias.asname or alias.name} = {node.module}.{alias.name};"
 
     def visit_FunctionDef(self, node: ast.FunctionDef) -> Iterable[str]:
         templ, args = self.process_args(node.args)