123 456 789 ABC DEF GHI いろは ちりぬ わかよ
123 456 789 ABC DEF GHI いろは ちりぬ わかよ
123 456 789 ABC DEF GHI いろは ちりぬ わかよ うゐの
>>> import filecmp
>>> filecmp.cmp('a.txt','b.txt')
True
>>> filecmp.cmp('a.txt','c.txt')
False>>> import difflib
>>> lista = open('a.txt').readlines()
>>> listc = open('c.txt').readlines()
>>> for diff in difflib.unified_diff(lista, listc, fromfile='a.txt', tofile='c.txt') :
print(diff)
--- a.txt
+++ c.txt
@@ -7,3 +7,5 @@
いろは
ちりぬ
わかよ
+うゐの
+
>>>