cleaned up imports

git-svn-id: https://svn.spreadspace.org/pic/trunk@80 a09c6847-51d9-44de-8ef2-e725cf50f3c7

1 files changed, 1 insertions, 5 deletions

diff --git a/bootloader/downloader.py b/bootloader/downloader.py
index bbb6d13..463e49c 100755
--- a/bootloader/downloader.py
+++ b/bootloader/downloader.py
@@ -30,6 +30,7 @@ VERSION_MIN = 1
 
 def load_hex(file):
     from ihexpic import IHexPic
+    import os
 
     fin = file
     if fin == '-':
@@ -85,9 +86,6 @@ def create_flash_segments(hexdata, fs, fss):
 ### Interface to Bootloader
 
 def open_serial(device, baud):
-    import os
-    import tty
-    import termios
     import serial
 
     print >> sys.stderr,  "opening %s (%s Baud)" % (device, baud)
@@ -109,7 +107,6 @@ def calc_csum(str):
     return cs
 
 def exec_command(dev, cmd, param, answer):
-    import struct
 
     return_codes = { 0: "OK", 1: "invalid command", 2: "bad checksum",
                      3: "not implemented", 4: "flash write error",
@@ -321,7 +318,6 @@ commands = {
 if __name__ == '__main__':
     import getopt
     import sys
-    import os
     import struct
 
     usage = '''spreadspace simple pic downloader.