prompt: You will be provided with a partial code base and an issue statement explaining a problem to resolve.
  <issue>
  Support WIFI network that does not have internet access
  REF: https://github.com/wroscoe/donkey/blob/dev/donkeycar/util/web.py
  
  The system determines its IP address using a ping to 8.8.8.8
  This approach fails when the WIFI network does not have internet access.
  
  
  
  
  </issue>
  <code>
  [start of donkeycar/util/web.py]
  1 import socket
  2 
  3 def get_ip_address():
  4     ip = ([l for l in ([ip for ip in socket.gethostbyname_ex(socket.gethostname())[2] if not ip.startswith("127.")][:1],
  5                            [[(s.connect(('8.8.8.8', 53)), s.getsockname()[0], s.close()) for s in
  6                              [socket.socket(socket.AF_INET, socket.SOCK_DGRAM)]][0][1]]) if l][0][0])
  7     return ip
  8
  [end of donkeycar/util/web.py]
  </code>
  
  I need you to solve this issue by generating a single patch file that I can apply directly to this repository using git apply. Please respond with a single patch file in the following format.
  <patch>
  diff --git a/file.py b/file.py
  --- a/file.py
  +++ b/file.py
  @@ -1,27 +1,35 @@
   def euclidean(a, b):
  -    while b:
  -        a, b = b, a % b
  -    return a
  +    if b == 0:
  +        return a
  +    return euclidean(b, a % b)
   
   
   def bresenham(x0, y0, x1, y1):
       points = []
       dx = abs(x1 - x0)
       dy = abs(y1 - y0)
  -    sx = 1 if x0 < x1 else -1
  -    sy = 1 if y0 < y1 else -1
  -    err = dx - dy
  +    x, y = x0, y0
  +    sx = -1 if x0 > x1 else 1
  +    sy = -1 if y0 > y1 else 1
   
  -    while True:
  -        points.append((x0, y0))
  -        if x0 == x1 and y0 == y1:
  -            break
  -        e2 = 2 * err
  -        if e2 > -dy:
  -            err -= dy
  -            x0 += sx
  -        if e2 < dx:
  -            err += dx
  -            y0 += sy
  +    if dx > dy:
  +        err = dx / 2.0
  +        while x != x1:
  +            points.append((x, y))
  +            err -= dy
  +            if err < 0:
  +                y += sy
  +                err += dx
  +            x += sx
  +    else:
  +        err = dy / 2.0
  +        while y != y1:
  +            points.append((x, y))
  +            err -= dx
  +            if err < 0:
  +                x += sx
  +                err += dy
  +            y += sy
  +
  +    points.append((x, y))
       return points
  
  </patch>
golden_diff: diff --git a/donkeycar/util/web.py b/donkeycar/util/web.py
  --- a/donkeycar/util/web.py
  +++ b/donkeycar/util/web.py
  @@ -1,7 +1,10 @@
   import socket
   
   def get_ip_address():
  -    ip = ([l for l in ([ip for ip in socket.gethostbyname_ex(socket.gethostname())[2] if not ip.startswith("127.")][:1],
  -                           [[(s.connect(('8.8.8.8', 53)), s.getsockname()[0], s.close()) for s in
  -                             [socket.socket(socket.AF_INET, socket.SOCK_DGRAM)]][0][1]]) if l][0][0])
  -    return ip
  +    try:
  +        ip = ([l for l in ([ip for ip in socket.gethostbyname_ex(socket.gethostname())[2] if not ip.startswith("127.")][:1],
  +                               [[(s.connect(('8.8.8.8', 53)), s.getsockname()[0], s.close()) for s in
  +                                 [socket.socket(socket.AF_INET, socket.SOCK_DGRAM)]][0][1]]) if l][0][0])
  +        return ip
  +    except OSError: #occurs when cannot connect to '8.8.8.8' 
  +        return "127.0.0.1" #loopback
  \ No newline at end of file
  
verification_info: {"golden_diff": "diff --git a/donkeycar/util/web.py b/donkeycar/util/web.py\n--- a/donkeycar/util/web.py\n+++ b/donkeycar/util/web.py\n@@ -1,7 +1,10 @@\n import socket\n \n def get_ip_address():\n-    ip = ([l for l in ([ip for ip in socket.gethostbyname_ex(socket.gethostname())[2] if not ip.startswith(\"127.\")][:1],\n-                           [[(s.connect(('8.8.8.8', 53)), s.getsockname()[0], s.close()) for s in\n-                             [socket.socket(socket.AF_INET, socket.SOCK_DGRAM)]][0][1]]) if l][0][0])\n-    return ip\n+    try:\n+        ip = ([l for l in ([ip for ip in socket.gethostbyname_ex(socket.gethostname())[2] if not ip.startswith(\"127.\")][:1],\n+                               [[(s.connect(('8.8.8.8', 53)), s.getsockname()[0], s.close()) for s in\n+                                 [socket.socket(socket.AF_INET, socket.SOCK_DGRAM)]][0][1]]) if l][0][0])\n+        return ip\n+    except OSError: #occurs when cannot connect to '8.8.8.8' \n+        return \"127.0.0.1\" #loopback\n\\ No newline at end of file\n", "issue": "Support WIFI network that does not have internet access\nREF: https://github.com/wroscoe/donkey/blob/dev/donkeycar/util/web.py\r\n\r\nThe system determines its IP address using a ping to 8.8.8.8\r\nThis approach fails when the WIFI network does not have internet access.\r\n\r\n\r\n\n", "before_files": [{"content": "import socket\n\ndef get_ip_address():\n    ip = ([l for l in ([ip for ip in socket.gethostbyname_ex(socket.gethostname())[2] if not ip.startswith(\"127.\")][:1],\n                           [[(s.connect(('8.8.8.8', 53)), s.getsockname()[0], s.close()) for s in\n                             [socket.socket(socket.AF_INET, socket.SOCK_DGRAM)]][0][1]]) if l][0][0])\n    return ip\n", "path": "donkeycar/util/web.py"}]}