Cleaned up wv_helper.py

* Formatted with autopep8
* Removed unused import typing.Any
* Adding Coding Magic
* Renamed argument input->inp to avoid shadowing python builtin
* Removed unnecessary dummy variable creation

src/wireviz/wv_helper.py

@@ -1,4 +1,7 @@
-from typing import Any, List
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+from typing import List
+
 
 def awg_equiv(mm2):
     awg_equiv_table = {
@@ -25,9 +28,10 @@ def awg_equiv(mm2):
     else:
         return 'unknown'
 
-def nested(input):
+
+def nested(inp):
     l = []
-    for x in input:
+    for x in inp:
         if isinstance(x, list):
             if len(x) > 0:
                 n = nested(x)
@@ -37,25 +41,26 @@ def nested(input):
             if x is not None:
                 if x != '':
                     l.append(str(x))
-    s = '|'.join(l)
-    return s
+    return '|'.join(l)
 
-def int2tuple(input):
-    if isinstance(input, tuple):
-        output = input
+
+def int2tuple(inp):
+    if isinstance(inp, tuple):
+        output = inp
     else:
-        output = (input,)
+        output = (inp,)
     return output
 
-def flatten2d(input):
-    output = [[str(item) if not isinstance(item, List) else ', '.join(item) for item in row] for row in input]
-    return output
 
-def tuplelist2tsv(input, header=None):
+def flatten2d(inp):
+    return [[str(item) if not isinstance(item, List) else ', '.join(item) for item in row] for row in inp]
+
+
+def tuplelist2tsv(inp, header=None):
     output = ''
     if header is not None:
-        input.insert(0, header)
-    input = flatten2d(input)
-    for row in input:
+        inp.insert(0, header)
+    inp = flatten2d(inp)
+    for row in inp:
         output = output + '\t'.join(str(item) for item in row) + '\n'
     return output