From 6671090e31ab30711f169abfb61d880b50ba27d8 Mon Sep 17 00:00:00 2001
From: root <root@turin.home>
Date: Fri, 4 Feb 2022 18:07:47 +0000
Subject: Dictionary class. Reformat.

---
 dictionary.py | 38 ++++++++++++++++++++++++++++++++++++++
 errors.py     | 16 ++++++++++++++++
 main.py       |  5 +++--
 sql.py        |  4 ++--
 4 files changed, 59 insertions(+), 4 deletions(-)
 create mode 100644 dictionary.py

diff --git a/dictionary.py b/dictionary.py
new file mode 100644
index 0000000..32c4e73
--- /dev/null
+++ b/dictionary.py
@@ -0,0 +1,38 @@
+import errors
+
+# Recursive merge sort algorithm
+# https://rosettacode.org/wiki/Sorting_algorithms/Merge_sort#Python
+def merge(x, y, i):
+    if x == []:
+        return y
+    if y == []:
+        return x
+    return (
+        [x[0]] + merge(x[1:], y, i)
+        if x[0][i] < y[0][i]
+        else [y[0]] + merge(x, y[1:], i)
+    )
+
+
+def sort(a, n, i):
+    m = n // 2
+    return (
+        a
+        if n <= 1
+        else merge(sort(a[:m], m, i), sort(a[m:], n - m, i), i)
+    )
+
+
+class dictionary:
+    def __init__(self):
+        self.data = []
+        self.size = 0
+
+    def add(self, key, value):
+        if type(value) != int:
+            self.data.append([key, value])
+            self.size += 1
+
+    # Sort dictionary by value
+    def sort_by_value(self):
+        self.data = sort_v(self.data, self.size, 1)
diff --git a/errors.py b/errors.py
index 5e7394b..b367263 100644
--- a/errors.py
+++ b/errors.py
@@ -1,3 +1,6 @@
+import os
+
+
 def device_error():
     print(
         """
@@ -7,4 +10,17 @@ def device_error():
                 - Raspberry Pi 4
             """
     )
+    os._exit(1)
+    quit()
+
+
+def argument_error(data, datatype):
+    print(
+        """
+        Invalid data type {} for {}
+        """.format(
+            data, datatype
+        )
+    )
+    os._exit(1)
     quit()
diff --git a/main.py b/main.py
index df6d919..7559888 100644
--- a/main.py
+++ b/main.py
@@ -83,9 +83,10 @@ def export(opt):
         for i in data:
             o += str(i) + "\n"
         con.close()
-        with open('static/export.txt', 'w') as file:
+        # writing data to a file
+        with open("static/export.txt", "w") as file:
             file.write(o)
-        return redirect('/static/export.txt')
+        return redirect("/static/export.txt")
     else:
         return render_template(
             "error.html", error="Invalid export type"
diff --git a/sql.py b/sql.py
index d78c84c..38d40e1 100644
--- a/sql.py
+++ b/sql.py
@@ -19,9 +19,9 @@ class db:
         con = sqlite3.connect(self.dbfile)
         cur = con.cursor()
         if param == None:
-             cur.execute(cmd)
+            cur.execute(cmd)
         else:
-             cur.execute(cmd, param)
+            cur.execute(cmd, param)
         con.commit()
         con.close()
 
-- 
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