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added 10 characters in body

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edited Sep 30, 2015 at 7:33

Python 3, 124124 123 bytes

from sys import*
for f in list(map(open,argv[1:]))or[stdin]:print(f.read().translate({i:i+32 fori+32for i in range(65,91)}),end="")

$ python kitten.py file.txt
hello
$ echo "Good Bye" | python kitten.py 
good bye
$ echo "Ä" | python kitten.py 
Ä

from sys import*
for f in list(map(open,argv[1:]))or[stdin]:print(f.read().translate({i:i+32 for i in range(65,91)}),end="")

$ python kitten.py file.txt
hello
$ echo "Good Bye" | python kitten.py 
good bye
$ echo "Ä" | python kitten.py 
Ä

from sys import*
for f in list(map(open,argv[1:]))or[stdin]:print(f.read().translate({i:i+32for i in range(65,91)}),end="")

$ python kitten.py file.txt
hello
$ echo "Good Bye" | python kitten.py 
good bye
$ echo "Ä" | python kitten.py 
Ä

Source Link

created Sep 29, 2015 at 18:20

from sys import*
for f in list(map(open,argv[1:]))or[stdin]:print(f.read().translate({i:i+32 for i in range(65,91)}),end="")

$ python kitten.py file.txt
hello
$ echo "Good Bye" | python kitten.py 
good bye
$ echo "Ä" | python kitten.py 
Ä