Fixed importing of variables modules. Now relative imports is available.

fixed #52

calculate/variables/loader.py

@@ -517,7 +517,9 @@ class VariableLoader:
         self.ini_filler = NamespaceIniFiller()
 
         self.variables_path = variables_path
-        self.variables_package = '.'.join(variables_path.split('/'))
+        self.variables_package = '.'.join(
+            variables_path[len(__file__) -
+                           len('calculate/variables/loader.py'):].split('/'))
         self.repository_map = repository_map
 
     def load_variables_package(self, package_name: str) -> None:

calculate/vars/main/os/__init__.py

@@ -1,9 +1,14 @@
-from calculate.variables.datavars import Variable, Namespace, Dependence, \
-    StringType, BooleanType, HashType, Calculate
-from calculate.vars.main.os.func import *
+from calculate.variables.datavars import (
+    Variable,
+    Namespace,
+    StringType,
+    Calculate
+    )
+from .func import get_arch_machine, get_arch_gentoo
 
 with Namespace("arch"):
     Variable("machine", type=StringType,
-        source=Calculate(get_arch_machine))
+             source=Calculate(get_arch_machine))
+
     Variable("gentoo", type=StringType,
-        source=Calculate(get_arch_gentoo, ".machine"))
+             source=Calculate(get_arch_gentoo, ".machine"))