Commit for trigrams program.

Author: buckcorter

students/ben_carter/lesson04/Trigrams.py

@@ -0,0 +1,52 @@
+# -*- coding: utf-8 -*-
+"""
+Created on Thu Dec 19 17:26:51 2019
+
+@author: bclas
+"""
+
+import sys, random
+
+###opens file from input
+import random
+
+def open_text_file():
+    choice = input("Enter a file to read")
+    with open(choice, "r") as f:
+        opened_file = f.read()
+        f.close()
+        return opened_file
+
+def output_split(f):
+    return f.split()
+
+def make_trigrams(words):
+    trigrams = {}
+    for i in range(len(words)-2):
+        pair = tuple(words[i:i+2])
+        follow = words[i+2]
+
+        clean_pair = ("".join([i for i in pair[0] if i.isalpha()]), "".join([i for i in pair[1] if i.isalpha()]))
+        clean_follow = "".join([i for i in follow if i.isalpha()])
+
+        if clean_pair in trigrams:
+            trigrams[clean_pair] += [clean_follow]
+        else:
+            trigrams[clean_pair] = [clean_follow]
+    return trigrams
+
+def build_new(text_words):
+    """Assembles the new text output"""
+    output_list = []
+    for k in text_words:
+        random_key = random.randint(0,1)
+        random_value = random.randint(0,1)
+        output_list.append(k[random_key])
+        output_list.append(k[random_value])
+
+    for i in range(len(output_list)):
+        x = (" ".join(output_list))
+    return x
+
+if __name__ == "__main__":
+    (build_new(make_trigrams((open_text_file().split()))))