solves excel sheet column number in python

Author: anishLearnsToCode

Diff for: README.md

@@ -50,7 +50,7 @@
 | 168 | [Excel Sheet Column Title](https://leetcode.com/problems/excel-sheet-column-title) | Easy | [![Java](https://img.icons8.com/color/40/000000/java-coffee-cup-logo.png)](src/ExcelSheetColumnTitle.java) [![Python](https://img.icons8.com/color/35/000000/python.png)](python/excel_sheet_column_title.py) | 
 | 169 | [Majority Element](https://leetcode.com/problems/majority-element) | Easy | [![Java](https://img.icons8.com/color/40/000000/java-coffee-cup-logo.png)](src/MajorityElement.java) [![Python](https://img.icons8.com/color/35/000000/python.png)](python/majority_element.py) | 
 | 170 | [Two Sum  III - Data Structure Design](https://leetcode.com/problems/two-sum-iii-data-structure-design) | Easy | |
-| 171 | [Excel Sheet Column Number](https://leetcode.com/problems/excel-sheet-column-number) | Easy | [![Java](https://img.icons8.com/color/40/000000/java-coffee-cup-logo.png)](src/ExcelSheetColumnNumber.java) |
+| 171 | [Excel Sheet Column Number](https://leetcode.com/problems/excel-sheet-column-number) | Easy | [![Java](https://img.icons8.com/color/40/000000/java-coffee-cup-logo.png)](src/ExcelSheetColumnNumber.java) [![Python](https://img.icons8.com/color/35/000000/python.png)](python/excel_sheet_column_number.py) |
 | 172 | [Factoring Trailing Zeroes](https://leetcode.com/problems/factorial-trailing-zeroes) | Easy | [![Java](https://img.icons8.com/color/40/000000/java-coffee-cup-logo.png)](src/FactorialTrailingZeros.java) | 
 | 189 | [Rotate Array](https://leetcode.com/problems/rotate-array) | Easy | [![Java](https://img.icons8.com/color/40/000000/java-coffee-cup-logo.png)](src/RotateArray.java) | 
 | 190 | [Reverse Bits](https://leetcode.com/problems/reverse-bits) | Easy | [![Java](https://img.icons8.com/color/40/000000/java-coffee-cup-logo.png)](src/ReverseBits.java) | 

Diff for: python/excel_sheet_column_number.py

@@ -0,0 +1,6 @@
+class Solution:
+    def titleToNumber(self, columnTitle: str) -> int:
+        value = 0
+        for character in columnTitle:
+            value = 26 * value + ord(character) - 64
+        return value