gregadelliot at hotmail.com (jeff) wrote:
I was just creating an encryption/ decryption program in python, ive
got no problem with the algothims or anything like that. my only
difficulty is how to i take a file and read in each charecter and then
preform and operation to it and then output it to another file,
basically i just wanna know how to take a string and then perform
actions to each charecter
I think (untested code ahead), for small files whosegot no problem with the algothims or anything like that. my only
difficulty is how to i take a file and read in each charecter and then
preform and operation to it and then output it to another file,
basically i just wanna know how to take a string and then perform
actions to each charecter
contents fit comfortably in memory:
for character in my_input_file.read():
my_output_file.write (modified (character))
For large files, some variant of
characters = my_input_file.read (1024)
while characters:
for char in characters:
my_output_file.write (modified (char))
characters = my_input_file.read (1024)
with the buffer-size changed from 1024 to some better
number, if necessary.
Regards. Mel.
