Add exception handling to file open

README.md

@@ -50,7 +50,7 @@ Enter setup mode.
 Copy boot.py to the root of the pico-ducky.  
 Copy your payload script to the pico-ducky.  
 Disconnect the pico from your host PC.
-Connect a jumper wire between pin 18 (GND) and pin 20 (GPIO15).
+Connect a jumper wire between pin 18 (`GND`) and pin 20 (`GPIO15`).
 This will prevent the pico-ducky from showing up as a USB drive when plugged into the target computer.  
 Remove the jumper and reconnect to your PC to reprogram.
 The default mode is USB mass storage enabled.   

duckyinpython.py

@@ -127,19 +127,22 @@ def runScript(file):
     global defaultDelay
 
     duckyScriptPath = file
-    f = open(duckyScriptPath,"r",encoding='utf-8')
-    previousLine = ""
-    for line in f:
-        line = line.rstrip()
-        if(line[0:6] == "REPEAT"):
-            for i in range(int(line[7:])):
-                #repeat the last command
-                parseLine(previousLine)
-                time.sleep(float(defaultDelay)/1000)
-        else:
-            parseLine(line)
-            previousLine = line
-        time.sleep(float(defaultDelay)/1000)
+    try:
+        f = open(duckyScriptPath,"r",encoding='utf-8')
+        previousLine = ""
+        for line in f:
+            line = line.rstrip()
+            if(line[0:6] == "REPEAT"):
+                for i in range(int(line[7:])):
+                    #repeat the last command
+                    parseLine(previousLine)
+                    time.sleep(float(defaultDelay)/1000)
+            else:
+                parseLine(line)
+                previousLine = line
+            time.sleep(float(defaultDelay)/1000)
+    except OSError as e:
+        print("Unable to open file ", file)
 
 def selectPayload():
     payload = "payload.dd"