From 776eee00928266013c9dc4ca94c8f43b816183e2 Mon Sep 17 00:00:00 2001
From: Daniel Tschertkow <daniel.tschertkow@posteo.de>
Date: Sun, 22 Nov 2020 16:21:53 +0100
Subject: [PATCH] =?UTF-8?q?f=C3=BCgt=20libex01.py=20hinzu.=20Enth=C3=A4lt?=
 =?UTF-8?q?=20read=5Fplaintext?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/libex01.py | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
 create mode 100644 src/libex01.py

diff --git a/src/libex01.py b/src/libex01.py
new file mode 100644
index 0000000..97ac0d3
--- /dev/null
+++ b/src/libex01.py
@@ -0,0 +1,14 @@
+# file: read_plaintext.py
+# module to read plaintext from a file into a string variable.
+# Skips non-alphabetic characters and converts the rest to lower case
+
+import string
+
+def read_plaintext(file_path):
+    txt = ""
+    with open(file_path, "r") as _file:
+        for line in _file:
+            for char in line:
+                if char in string.ascii_letters:
+                    txt += char
+    return txt