fix setting the global "open" function

Author: cosminbasca

graalpython/com.oracle.graal.python.test/src/tests/cpyext/test_unicode.py

@@ -36,8 +36,9 @@
 # SOFTWARE.
 
 import sys
-import warnings
-from . import CPyExtTestCase, CPyExtFunction, CPyExtFunctionVoid, unhandled_error_compare, GRAALPYTHON
+
+from . import CPyExtTestCase, CPyExtFunction, unhandled_error_compare, GRAALPYTHON
+
 __dir__ = __file__.rpartition("/")[0]
 
 
@@ -326,7 +327,6 @@ def compile_module(self, name):
         cmpfunc=unhandled_error_compare
     )
 
-    # TODO enable once supported
     test_PyUnicode_GET_SIZE = CPyExtFunction(
         lambda args: len(args[0]),
         lambda: (

graalpython/lib-graalpython/_io.py

@@ -674,9 +674,11 @@ def open(*args, **kwargs):
     import _pyio
     import builtins
     setattr(builtins, 'open', _pyio.open)
+    globals()['open'] = _pyio.open
     return _pyio.open(*args, **kwargs)
 
 
 # set the builtins open method
 import builtins
 setattr(builtins, 'open', open)
+globals()['open'] = open

mx.graalpython/mx_graalpython.py

@@ -239,7 +239,7 @@ def nativebuild(args):
 
 
 def nativeclean(args):
-    mx.run(['find', './graalpython/com.oracle.graal.python.test/src/tests/cpyext', '-name', '*.bc', '-delete'])
+    mx.run(['find', '.', '-name', '*.bc', '-delete'])
 
 
 # mx gate --tags pythonbenchmarktest