Add Python solution to challenge 045

3 files changed, 68 insertions, 1 deletions

diff --git a/challenge-045/paulo-custodio/Makefile b/challenge-045/paulo-custodio/Makefile
index 6a9bfeacd6..612e70ec86 100644
--- a/challenge-045/paulo-custodio/Makefile
+++ b/challenge-045/paulo-custodio/Makefile
@@ -1,3 +1,4 @@
 all:
 	perl ../../challenge-001/paulo-custodio/test.pl
-	perl ./perl/ch-2.pl | diff - ./perl/ch-2.pl
\ No newline at end of file
+	perl ./perl/ch-2.pl | diff - ./perl/ch-2.pl
+	python3 ./python/ch-2.py | diff - ./python/ch-2.py
diff --git a/challenge-045/paulo-custodio/python/ch-1.py b/challenge-045/paulo-custodio/python/ch-1.py
new file mode 100644
index 0000000000..a6417710be
--- /dev/null
+++ b/challenge-045/paulo-custodio/python/ch-1.py
@@ -0,0 +1,51 @@
+#!/usr/bin/env python3
+
+# Challenge 045
+#
+# TASK #1
+# Square Secret Code
+#
+# The square secret code mechanism first removes any space from the original
+# message. Then it lays down the message in a row of 8 columns. The coded
+# message is then obtained by reading down the columns going left to right.
+#
+# For example, the message is "The quick brown fox jumps over the lazy dog".
+#
+# Then the message would be laid out as below:
+#
+# thequick
+# brownfox
+# jumpsove
+# rthelazy
+# dog
+#
+# The code message would be as below:
+#
+# tbjrd hruto eomhg qwpe unsl ifoa covz kxey
+#
+# Write a script that accepts a message from command line and prints the
+# equivalent coded message.
+
+import re
+import sys
+
+def encode(text):
+    text, dummy = re.subn(r'\W+', '', text)
+    box = []
+    while text != '':
+        box.append(text[0:8])
+        text = text[8:]
+    encoded = []
+    while True:
+        box = [x for x in filter(lambda x: x != '', box)]
+        if len(box) == 0:
+            break;
+        word = ""
+        for i in range(len(box)):
+            if len(box[i]) > 0:
+                word += box[i][0]
+                box[i] = box[i][1:]
+        encoded.append(word)
+    return encoded
+
+print(' '.join(encode(''.join(sys.argv[1:]))))
diff --git a/challenge-045/paulo-custodio/python/ch-2.py b/challenge-045/paulo-custodio/python/ch-2.py
new file mode 100644
index 0000000000..28fd2e75d4
--- /dev/null
+++ b/challenge-045/paulo-custodio/python/ch-2.py
@@ -0,0 +1,15 @@
+#!/usr/bin/env python3
+
+# Challenge 045
+#
+# TASK #2
+# Source Dumper
+# Write a script that dumps its own source code. For example, say, the script
+# name is ch-2.pl then the following command should returns nothing.
+#
+# $ perl ch-2.pl | diff - ch-2.pl
+
+import sys
+
+file = open(sys.argv[0])
+print(file.read(), end='')