diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..c775494
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,12 @@
+# Project environment files.
+.DS_Store
+.env
+.idea
+.vscode
+
+# Python virtual environment.
+.venv
+venv
+
+# Compilation folder.
+__pycache__
diff --git a/.python-version b/.python-version
new file mode 100644
index 0000000..d70c8f8
--- /dev/null
+++ b/.python-version
@@ -0,0 +1 @@
+3.6
diff --git a/l2cap_fuzzer.py b/l2cap_fuzzer.py
index 6539a1c..fa92272 100644
--- a/l2cap_fuzzer.py
+++ b/l2cap_fuzzer.py
@@ -835,7 +835,3 @@ def l2cap_fuzzing(bt_addr, profile, port, test_info):
 			logger["end_time"] = str(datetime.now())
 			logger["count"] = {"all" : pkt_cnt, "crash" : crash_cnt, "passed" : pkt_cnt-crash_cnt}
 			json.dump(logger, f, indent="\t")
-
-
-
-
diff --git a/l2fuzz.py b/l2fuzz.py
index b6a33b4..6f2578a 100644
--- a/l2fuzz.py
+++ b/l2fuzz.py
@@ -229,7 +229,7 @@ def bluetooth_classic_scan():
     
     while(True):
         user_input = int(input("\nChoose Device : "))
-        if user_input < len(nearby_devices) or user_input > -1:
+        if user_input < len(nearby_devices) and user_input > -1:
             idx = user_input
             break
         else:
@@ -306,7 +306,4 @@ def bluetooth_services_and_protocols_search(bt_addr):
         print("Not Supported")
 
 
-   
-
-
-
+   
\ No newline at end of file
diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 0000000..03931aa
--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1,4 @@
+ouilookup==0.2.4
+PyBluez==0.23
+python-statemachine==1.0.3
+scapy==2.4.4