Updating files after TR review

chapter4/files/multifilesread1.py

@@ -1,6 +1,5 @@
 #multifilesread1.py
-import fileinput
-with fileinput.input(files = ("1.txt",'2.txt') )as f:
-    for line in f:
-        print(f.filename())
-        print(line)
+
+with open("1.txt") as file1, open("2.txt") as file2:
+    print(file2.readline())
+    print(file1.readline())

chapter4/files/multifilesread2.py

@@ -0,0 +1,5 @@
+#multifilesread2.py
+
+with open("1.txt",'r') as file1, open("3.txt",'w') as file2:
+   for line in file1.readlines():
+     file2.write(line)

chapter4/files/multifilesread3.py

@@ -0,0 +1,6 @@
+#multifilesread2.py
+import fileinput
+with fileinput.input(files = ("1.txt",'2.txt') )as f:
+    for line in f:
+        print(f.filename())
+        print(line)