Move the base Context stuff to another module to keep context free for imports.

jedi/evaluate/compiled/__init__.py

@@ -13,7 +13,7 @@ from jedi import debug
 from jedi.cache import underscore_memoization, memoize_method
 from jedi.evaluate.filters import AbstractFilter, AbstractNameDefinition, \
     ContextNameMixin
-from jedi.evaluate.context import Context, LazyKnownContext, ContextSet
+from jedi.evaluate.base_context import Context, ContextSet
 from jedi.evaluate.compiled.getattr_static import getattr_static
 from . import fake
 
@@ -231,6 +231,7 @@ class CompiledObject(Context):
             # Get rid of side effects, we won't call custom `__getitem__`s.
             return
 
+        from jedi.evaluate.context import LazyKnownContext
         for i, part in enumerate(self.obj):
             if i > 20:
                 # Should not go crazy with large iterators

jedi/evaluate/compiled/mixed.py

@@ -9,7 +9,8 @@ from jedi import settings
 from jedi.evaluate import compiled
 from jedi.cache import underscore_memoization
 from jedi.evaluate import imports
-from jedi.evaluate.context import Context, ContextSet
+from jedi.evaluate.base_context import Context, ContextSet
+from jedi.evaluate.context import ModuleContext
 from jedi.evaluate.cache import evaluator_function_cache
 from jedi.evaluate.compiled.getattr_static import getattr_static
 
@@ -206,7 +207,6 @@ def _create(evaluator, obj, parent_context=None, *args):
     if parent_context.tree_node.get_root_node() == module_node:
         module_context = parent_context.get_root_context()
     else:
-        from jedi.evaluate.context.module import ModuleContext
         module_context = ModuleContext(evaluator, module_node, path=path)
         # TODO this __name__ is probably wrong.
         name = compiled_object.get_root_context().py__name__()