diff --git a/cartesian_plane_quadrant.py b/cartesian_plane_quadrant.py
index 606aec8..b4d64a4 100644
--- a/cartesian_plane_quadrant.py
+++ b/cartesian_plane_quadrant.py
@@ -11,8 +11,8 @@ def determine_quadrant(x, y):
 			return 'III(-,-)'
 		elif x > 0 and y < 0 :
 			return 'IV(+,-)'
-		else :
-			return 'Invalid parameters were provided')
+		else:
+			return ('Invalid parameters were provided')
 	except TypeError:
 		return "X and Y co-ords must be integers and not X {}, Y{}".format(type(x), type(y))
 
diff --git a/readFiles.py b/readFiles.py
index 73948ea..ac2b78f 100644
--- a/readFiles.py
+++ b/readFiles.py
@@ -1,7 +1,34 @@
-# Reading files
+# Reading a file in a directory
+from pathlib import Path
 
-# Enter file name which is in same directory as that of the program
-fileName = str(input('File name : ')) 
-fileToRead = open(fileName, 'r') # 'r' reads the file
-print(fileToRead.read()) # reading file
-fileToRead.close() # closing the file
+#check if valid directory
+while True:
+    try:
+        d = str(input('Please enter a directory path: '))
+        d_path = Path(d)
+        if d_path.is_dir():
+            break
+        else:
+            raise ValueError
+    except (ValueError, OSError):
+        print('Specified directory path not found')
+
+#show all files in directory chosen
+lst = []
+for obj in d_path.iterdir():
+    if obj.is_file():
+        lst.append(obj)
+# sorting lexicographically taking each path object as a string
+lst_copy = sorted(lst, key=lambda obj: str(obj))
+for obj in lst_copy:
+    print(obj)
+
+#open file
+while True:
+    try:
+        file = str(input('Please enter a file name: '))
+        for line in open(file): #more memory efficient
+            line = line.rstrip('\n')
+            print(line)
+    except (OSError, FileNotFoundError):
+        print('File error')
\ No newline at end of file
diff --git a/writingFiles.py b/writingFiles.py
index 849628b..9d94644 100644
--- a/writingFiles.py
+++ b/writingFiles.py
@@ -1,8 +1,36 @@
-# Writing files
-
-# Enter file name which is in same directory as that of the program
-fileName = str(input('File name : ')) 
-fileToWrite = open(fileName, 'w') # 'w' writes to the file
-textToWrite = str(input('Text to write : '))
-fileToWrite.write(textToWrite) # writing file
-fileToWrite.close() # closing the file
+# Writing to a file in a directory
+from pathlib import Path
+
+#check if valid directory
+while True:
+    try:
+        d = str(input('Please enter a directory path: '))
+        d_path = Path(d)
+        if d_path.is_dir():
+            break
+        else:
+            raise ValueError
+    except (ValueError, OSError):
+        print('Specified directory path not found')
+
+#show all files in directory chosen
+lst = []
+for obj in d_path.iterdir():
+    if obj.is_file():
+        lst.append(obj)
+# sorting lexicographically taking each path object as a string
+lst_copy = sorted(lst, key=lambda obj: str(obj))
+for obj in lst_copy:
+    print(obj)
+
+#open file
+while True:
+    try:
+        file = str(input('Please enter a file name: '))
+        fileToWrite = open(file, 'w') # 'w' writes to the file
+        textToWrite = str(input('Text to write: '))
+        fileToWrite.write(textToWrite) # writing file
+        fileToWrite.close() # closing the file
+    except (OSError, FileNotFoundError):
+        print('File error')
+