Rename the directory Introduction_To_Python...

Introduction_To_Programming_with_Python/ProblemSet_07/numb3rs/numb3rs.py

@@ -0,0 +1,13 @@
+import re
+import sys
+
+def main():
+    print(validate(input("IPv4 Address: ")))
+
+
+def validate(ip):
+    s = [i.isdigit() and int(i) <= 255 for i in ip.strip().split(".")]
+    return all(s) and len(s) == 4
+
+if __name__ == "__main__":
+    main()

Introduction_To_Programming_with_Python/ProblemSet_07/numb3rs/test_numb3rs.py

@@ -0,0 +1,44 @@
+import pytest
+from numb3rs import validate
+
+def test_valid_ipv4():
+    assert validate("127.0.0.1") == True
+    assert validate("255.255.255.255") == True
+    assert validate("192.168.1.1") == True
+
+def test_invalid_ipv4():
+    assert validate("512.512.512.512") == False
+    assert validate("1.2.3.1000") == False
+    assert validate("cat") == False
+    assert validate("256.0.0.1") == False
+    assert validate("192.168.1.1.1") == False
+
+def test_edge_cases():
+    # Minimum valid IPv4 address
+    assert validate("0.0.0.0") == True
+
+    # Maximum valid IPv4 address
+    assert validate("255.255.255.255") == True
+
+    # Valid IPv4 addresses with leading zeros
+    assert validate("001.002.003.004") == True
+    assert validate("010.020.030.040") == True
+
+    # Valid IPv4 addresses with spaces
+    assert validate(" 127.0.0.1 ") == True
+    assert validate("   192.168.1.1   ") == True
+
+def test_mixed_formats():
+    # Valid IPv4 addresses in mixed formats
+    assert validate("192.168.1.001") == True
+    assert validate("   010.020.030.040   ") == True
+
+def test_invalid_formats():
+    # Invalid IPv4 formats
+    assert validate("256.0.0.1") == False
+    assert validate("1.2.3.1000") == False
+    assert validate("cat") == False
+    assert validate("192.168.1.1.1") == False
+
+if __name__ == "__main__":
+    pytest.main()