[PATCH 04/34] lsusb.py: replace fake deepcopy()

["Mantas Mikulėnas" <grawity@gmail.com>]

It doesn't actually do a deep copy, and Python already has ways of doing
a shallow copy (list(foo) and [*foo] for arbitrary iterables; foo[:] for
indexable lists).

Signed-off-by: Mantas Mikulėnas <grawity@gmail.com>
---
 lsusb.py.in | 13 +++----------
 1 file changed, 3 insertions(+), 10 deletions(-)

diff --git a/lsusb.py.in b/lsusb.py.in
index e54ee75..9ca734c 100644
--- a/lsusb.py.in
+++ b/lsusb.py.in
@@ -518,13 +518,6 @@ class UsbDevice:
 			str += child.__str__()
 		return str
 
-def deepcopy(lst):
-	"Returns a deep copy from the list lst"
-	copy = []
-	for item in lst:
-		copy.append(item)
-	return copy
-
 def display_diff(lst1, lst2, fmtstr, args):
 	"Compare lists (same length!) and display differences"
 	for idx in range(0, len(lst1)):
@@ -534,7 +527,7 @@ def display_diff(lst1, lst2, fmtstr, args):
 def fix_usbvend():
 	"Sort USB vendor list and (optionally) display diffs"
 	if warnsort:
-		oldusbvend = deepcopy(usbvendors)
+		oldusbvend = usbvendors[:]
 	usbvendors.sort()
 	if warnsort:
 		display_diff(usbvendors, oldusbvend, 
@@ -544,7 +537,7 @@ def fix_usbvend():
 def fix_usbprod():
 	"Sort USB products list"
 	if warnsort:
-		oldusbprod = deepcopy(usbproducts)
+		oldusbprod = usbproducts[:]
 	usbproducts.sort()
 	if warnsort:
 		display_diff(usbproducts, oldusbprod, 
@@ -554,7 +547,7 @@ def fix_usbprod():
 def fix_usbclass():
 	"Sort USB class list"
 	if warnsort:
-		oldusbcls = deepcopy(usbclasses)
+		oldusbcls = usbclasses[:]
 	usbclasses.sort()
 	if warnsort:
 		display_diff(usbclasses, oldusbcls,
-- 
2.21.0