How to load an uppercase alphabet?

Question

I have been trying to create a Caesar cipher program. To make it as inclusive as possible I want to be able to use upper case letters as well. I know how to load a lower case alphabet:

alphabet = string.ascii_lowercase * 2

(I have timed it by two to allow the user to encrypt all letters) I would really like some help. It is my first time submitting a question and I would appreciate any help I get

I will add an if statement to determine whether the letter in the message is upper case or not — Kate Marron, Jun 06 '15 at 11:20
About this `if` statement of yours, you can use the [`isupper`](https://docs.python.org/3/library/stdtypes.html) method to determine if a message is upper case or not. — Marcus Vinícius Monteiro, Jun 06 '15 at 11:27

Malik Brahimi · Answer 1 · 2015-06-06T11:19:19.627

2

If there is a string.ascii_lowercase then surely there is a string.ascii_uppercase. Give it a try.

edited Jun 06 '15 at 11:19

answered Jun 06 '15 at 11:16

Malik Brahimi

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sorry, I need just uppercase – Kate Marron Jun 06 '15 at 11:18
@KateMarron and which part od ascii_uppercase provides you with something more than uppercase? – zubergu Jun 06 '15 at 11:26
@zubergu Sorry, I thought I had checked that! I accidentally forgot the case at the end! Thank you – Kate Marron Jun 06 '15 at 11:33

score 0 · Answer 2 · answered Jun 06 '15 at 11:27

0

You can use

string.uppercase This is locale-dependent, and value will be updated when locale.setlocale() is called.

Please refer - https://docs.python.org/2/library/string.html

answered Jun 06 '15 at 11:27

Pralhad Narsinh Sonar

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@kate-marron - if you could paste the code snippet as a part of question then that help to answer the question more effeciently. – Pralhad Narsinh Sonar Jun 06 '15 at 11:29

score 0 · Accepted Answer · answered Jun 06 '15 at 11:37

There is string.ascii_uppercase as well as string.ascii_lowercase (documentation). For testing if a letter is upper case and do something for uppercase letters in a message you can do this:

for letter in message:
    if letter in string.ascii_uppercase:
        # do something

You can also use isupper() method (documentation):

for letter in message:
    if letter.isupper():
        # do something

If you want to check whether the whole message is upper case, then isupper() is actually better as it checks the whole string:

if message.isupper():
    # do something

Thank you, you answered my next question before I asked it – Kate Marron Jun 06 '15 at 11:39 — Kate Marron, Jun 06 '15 at 11:39

user9138 · Answer 4 · 2015-06-06T11:21:53.180

-1

This loop will make a string with all uppercase letters and save it in letters_str

letters_str = ''
for x in range(65,91):
    letters_str+=chr(x)

edited Jun 06 '15 at 11:21

answered Jun 06 '15 at 11:20

user9138

21
3

That's just pointless, there's no need for ascii character codes to generate all uppercase letters. – Malik Brahimi Jun 06 '15 at 11:22
I'd rather you put `string.ascii_lowercase.upper()` than see you try this. – Malik Brahimi Jun 06 '15 at 11:23
What the question to be answered? – tsuki Jun 06 '15 at 11:31

How to load an uppercase alphabet?

4 Answers4