changed paths

Author: Karandeep Grover

Basics/Hindi/12_read_write_file/Exercise/exercise_1_poem.py renamed to Basics/Exercise/13_read_write_files/exercise_1_poem.py

@@ -0,0 +1,12 @@
+with open("stocks.csv", "r") as f, open("output.csv", "w") as out:
+    out.write("Company Name,PE Ratio, PB Ratio\n")
+    next(f)  # This will skip first line in the file which is a header
+    for line in f:
+        tokens = line.split(",")
+        stock = tokens[0]
+        price = float(tokens[1])
+        eps = float(tokens[2])
+        book = float(tokens[3])
+        pe = round(price / eps, 2)
+        pb = round(price / book, 2)
+        out.write(f"{stock},{pe},{pb}\n")

Basics/Exercise/13_read_write_files/exercise_2_stocks.py

@@ -1,10 +1,10 @@
 ## Exercise: Python Read Write File
-1. [poem.txt](https://github.com/codebasics/py/blob/master/Basics/Hindi/12_read_write_file/Exercise/poem.txt) contains famous poem "Road not taken" by poet Robert Frost. You have to read this file in your python program and find out words with maximum occurance.
+1. [poem.txt](https://github.com/codebasics/py/blob/master/Basics/Exercise/13_read_write_files/poem.txt) contains famous poem "Road not taken" by poet Robert Frost. You have to read this file in your python program and find out words with maximum occurance.
 
 
-[Solution](https://github.com/codebasics/py/blob/master/Basics/Hindi/12_read_write_file/Exercise/exercise_1_poem.py)
+[Solution](https://github.com/codebasics/py/blob/master/Basics/Exercise/13_read_write_files/exercise_2_stocks.py)
 
-2. [stocks.csv](https://github.com/codebasics/py/blob/master/Basics/Hindi/12_read_write_file/Exercise/stocks.csv) contains stock price, earnings per share and book value. You are writing a stock market application that will process this file and create a new file
+2. [stocks.csv](https://github.com/codebasics/py/blob/master/Basics/Exercise/13_read_write_files/stocks.csv) contains stock price, earnings per share and book value. You are writing a stock market application that will process this file and create a new file
 with financial metrics such as pe ratio and price to book ratio. These are calculated as,
 ```
 pe ratio = price / earnings per share
@@ -26,4 +26,4 @@ Output.csv should look like this,
 |Reliance|22.23|2.25|
 |Tata Steel|4.39|0.68|
 
-[Solution](https://github.com/codebasics/py/blob/master/Basics/Hindi/12_read_write_file/Exercise/exercise_2_stocks.py)
+[Solution](https://github.com/codebasics/py/blob/master/Basics/Exercise/13_read_write_files/exercise_2_stocks.py)