From 2e7206343eed18f6dc17f0db005c539b2cd680d1 Mon Sep 17 00:00:00 2001
From: Eren Dogan <erdogan@ucsc.edu>
Date: Sun, 27 Nov 2022 13:11:10 -0800
Subject: [PATCH] Remove unnecessary imports

---
 compiler/base/geometry.py         | 2 --
 compiler/base/hierarchy_layout.py | 4 ----
 2 files changed, 6 deletions(-)

diff --git a/compiler/base/geometry.py b/compiler/base/geometry.py
index 7114d5ae..7be1bf8c 100644
--- a/compiler/base/geometry.py
+++ b/compiler/base/geometry.py
@@ -249,7 +249,6 @@ class instance(geometry):
         """ Return an absolute pin that is offset and transformed based on
         this instance location. Index will return one of several pins."""
 
-        import copy
         if index == -1:
             pin = copy.deepcopy(self.mod.get_pin(name))
             pin.transform(self.offset, self.mirror, self.rotate)
@@ -267,7 +266,6 @@ class instance(geometry):
         """ Return an absolute pin that is offset and transformed based on
         this instance location. """
 
-        import copy
         pin = copy.deepcopy(self.mod.get_pins(name))
 
         new_pins = []
diff --git a/compiler/base/hierarchy_layout.py b/compiler/base/hierarchy_layout.py
index 0ec24657..94576986 100644
--- a/compiler/base/hierarchy_layout.py
+++ b/compiler/base/hierarchy_layout.py
@@ -1253,7 +1253,6 @@ class layout():
 
     def add_via(self, layers, offset, size=[1, 1], directions=None, implant_type=None, well_type=None):
         """ Add a three layer via structure. """
-        from openram.sram_factory import factory
         via = factory.create(module_type="contact",
                              layer_stack=layers,
                              dimensions=size,
@@ -1272,7 +1271,6 @@ class layout():
         Add a three layer via structure by the center coordinate
         accounting for mirroring and rotation.
         """
-        from openram.sram_factory import factory
         via = factory.create(module_type="contact",
                              layer_stack=layers,
                              dimensions=size,
@@ -2176,7 +2174,6 @@ class layout():
 
         # Find the number of vias for this pitch
         supply_vias = 1
-        from openram.sram_factory import factory
         while True:
             c = factory.create(module_type="contact",
                                layer_stack=self.m1_stack,
@@ -2289,7 +2286,6 @@ class layout():
 
         # Find the number of vias for this pitch
         self.supply_vias = 1
-        from openram.sram_factory import factory
         while True:
             c = factory.create(module_type="contact",
                                layer_stack=self.m1_stack,