first two challenges solved

tests/01.py

@@ -1,10 +1,16 @@
 #!/usr/bin/env python
 
-from cryptopals import helper
-from cryptopals import cryptopals
+import os, sys
+
+module_dir = os.path.relpath('../src/cryptopals')
+sys.path.insert(0, module_dir)
+
+import helper, cryptlib
 
 def main():
-    pass
+    hex_string = helper.read_file("../data/01.txt") 
+    solution = cryptlib.hex_to_base64(hex_string)
+    print(solution.decode())
 
 
 if __name__ == '__main__':

tests/02.py

@@ -0,0 +1,17 @@
+#!/usr/bin/env python
+
+import os, sys
+
+module_dir = os.path.relpath('../src/cryptopals')
+sys.path.insert(0, module_dir)
+
+import helper, cryptlib
+
+def main():
+    content = helper.read_file("../data/02.txt")
+    hexstring_list = content.splitlines()
+    solution = cryptlib.byte_xor(hexstring_list[0], hexstring_list[1])
+    print(hex(solution)[2:])
+
+if __name__ == '__main__':
+    main()

tests/template.py

@@ -1,5 +1,15 @@
+#!/usr/bin/env python
+
+import os, sys
+
+module_dir = os.path.relpath('../src/cryptopals')
+sys.path.insert(0, module_dir)
+
+import helper, cryptlib
+
 def main():
     pass
 
+
 if __name__ == '__main__':
     main()