rapid ruin May 23, 2025, 7:35 AM

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im trying to encrypt and decrypt the Caesar encryption but im stuck at this point and idk how to continue :(((

the code:

#verschlüsselung
def caesarEnc(Klartext, Key):
    geheimtext=""
    klartext=klartext.upper()
    for buchstabe in klartext:
        unicode=ord(buchstabe)
        unicode+=key
        if unicode>90:
            unicode-=26
        geheimbuchstabe=chr(unicode)
        geheimtext+=geheimbuchstabe
        return geheimtext
#entschlüsselung    
def caesarDec(geheimtext, key):
    klartext=""
    geheimtext=geheimtext.upper()
    for buchstabe in geheimtext:
        unicode=ord(buchstabe)
        unicoded-=key
        if unicode<65:
            unicode+=26
        klartext=chr(unicode)
        klartext-=klarbuchstabe
        return klartext
        
    
    
# text="DIE SPINNEN DIE GALLIER!"
text="CaesarZ"
key=3
textEnc=caesarEnc(text, key)
textDec=caesarDec(textEnc, key)
print("Original: "+text.upper())
print("Verschlüsselt: "+textEnc)
print("Entschlüsselt: "+textDec)
caesarBreak(textEnc)```

tranquil orbitBOT May 23, 2025, 7:35 AM

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rapid ruin im trying to encrypt and decrypt the Caesar encryption but im stuck at this poin...

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@rapid ruin

Python help channel opened

Remember to:

Ask your Python question, not if you can ask or if there's an expert who can help.
Show a code sample as text (rather than a screenshot) and the error message, if you've got one.
Explain what you expect to happen and what actually happens.

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tardy jay May 23, 2025, 7:42 AM

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how about to show an error?

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but from what i see right now one of your arguments is Klartext but inside function you use klartext

rapid ruin May 23, 2025, 7:49 AM

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oh

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this is my error:

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%Run 'von Lets code Python.py'
Traceback (most recent call last):
File "C:\Users\alexi\Downloads\von Lets code Python.py", line 32, in <module>
textDec=caesarDec(textEnc, key)
File "C:\Users\alexi\Downloads\von Lets code Python.py", line 23, in caesarDec
klartext-= klarbuchstabe
NameError: name 'klarbuchstabe' is not defined

tardy jay May 23, 2025, 7:53 AM

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just learn to read errors here it says you have problem in caesarDec
and yeah you have mistake in lines

        klartext=chr(unicode)
        klartext-=klarbuchstabe

rapid ruin May 23, 2025, 7:53 AM

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but i dont undeerstand what my mistake there is

tardy jay May 23, 2025, 7:54 AM

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compare this lines with similar lines in caesarEnc

rapid ruin May 23, 2025, 7:54 AM

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ok wait

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nio sry i dont get it

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no*

tardy jay May 23, 2025, 7:56 AM

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ok firstly lets get back to error
it says NameError: name 'klarbuchstabe' is not defined
as you can see in you code klartext-=klarbuchstabe
but klarbuchstabe was never defined
compare it with lines in caesarEnc:

        geheimbuchstabe=chr(unicode)
        geheimtext+=geheimbuchstabe

rapid ruin May 23, 2025, 7:57 AM

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so the "geheimbuchstabe=chr(unicode)
geheimtext+=geheimbuchstabe" is a definition of geheimbuchstabe and i was supposed to do the same with klarbuchstabe?

tardy jay May 23, 2025, 7:59 AM

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yes, btw do you understand what this code do or you just copy/paste?

rapid ruin May 23, 2025, 8:00 AM

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no i wrote it myself but with specifications from my teacher

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its still not working even thought i did change klarbuchstabe

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#entschlüsselung    
def caesarDec(geheimtext, key):
    klartext=""
    geheimtext=geheimtext.upper()
    for buchstabe in geheimtext:
        unicode=ord(buchstabe)
        unicode-=key
        if unicode<65:
            unicode+=26
        klarbuchstabe=chr(unicode)
        klartext-= klarbuchstabe
        return klartext```

tardy jay May 23, 2025, 8:03 AM

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because when you write Decode function you are not supposed do everything opposite. there is still mistake. Try to use error message to find it

rapid ruin May 23, 2025, 8:03 AM

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ok

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# text="DIE SPINNEN DIE GALLIER!"
text="CaesarZ"
key=3
textEnc=caesarEnc(text, key)
textDec=caesarDec(klartextEnc, key)
print("Original: "+text.upper())
print("Verschlüsselt: "+textEnc)
print("Entschlüsselt: "+textDec)
caesarBreak(textEnc)```

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i changed this and now there is one error less

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but the last one i dont understand

tardy jay May 23, 2025, 8:10 AM

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you probably find it wrong, or you have klartextEnc somewhere defined?

rapid ruin May 23, 2025, 8:10 AM

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oh no its worse if i change this --^ it makey there stand only one error that klartext is again not defined but if i change it back to text there are errors i dont understand

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oh makes sense

tardy jay May 23, 2025, 8:11 AM

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can you show me original error message so i explain

rapid ruin May 23, 2025, 8:11 AM

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sure

#

#

sry for quality

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oh iget it

tardy jay May 23, 2025, 8:16 AM

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OK, firstly this is one report of one error
so first part that points on caesarDec actually just says that error occurred during call of function caesarDec

The second part is pointing klartext-= klarbuchstabe which is actually problem

rapid ruin May 23, 2025, 8:16 AM

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i had to make the - to an + by klartext bc i change unicode to letters

tardy jay May 23, 2025, 8:16 AM

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each but explanation is not correct

rapid ruin May 23, 2025, 8:17 AM

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and the bottompart this one # text="DIE SPINNEN DIE GALLIER!"
text="CaesarZ"
key=3
textEnc=caesarEnc(text, key)
textDec=caesarDec(klartextEnc, key)
print("Original: "+text.upper())
print("Verschlüsselt: "+textEnc)
print("Entschlüsselt: "+textDec)
caesarBreak(textEnc)

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is copy and paste wich is why the code aint working

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bc of the last line

tardy jay May 23, 2025, 8:18 AM

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i still think that idea is to

textEnc=caesarEnc(text, key)
textDec=caesarDec(textEnc, key)

you trying encode then decode, right?

tardy jay May 23, 2025, 8:19 AM

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rapid ruin i had to make the - to an + by klartext bc i change unicode to letters

so you fixed it in klartext-= klarbuchstabe or somewhere else?

rapid ruin May 23, 2025, 8:19 AM

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yes

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fixed it

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i peeked into my teachers solution for it and there is this standing, do u know what its suppost to do bc i dont have i ```py
def caesarBreak(geheimtext):
for i in range(1,26):
print("Key:",i, "Text:",caesarDec(geheimtext, i))

tranquil orbitBOT May 23, 2025, 8:20 AM

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Hey @rapid ruin!

Please edit your message to use a code block

Make sure you put your code on a new line following py. There must not be any spaces after py.

Here is an example of how it should look:
```py
print('Hello, world!')
```

This will result in the following:

print('Hello, world!')```

tardy jay May 23, 2025, 8:22 AM

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okey but you explained it not correctly
when you use klartext += klarbuchstabe
its not related to unicode klartext is your buffer to store result and with += you just add to result next letter
(error occurs because strings dont have -, -= operations)

rapid ruin May 23, 2025, 8:23 AM

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so it connects my letters?

tardy jay May 23, 2025, 8:23 AM

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rapid ruin i peeked into my teachers solution for it and there is this standing, do u know ...

can you try it explain yourself and ill correct you

rapid ruin May 23, 2025, 8:23 AM

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tardy jay can you try it explain yourself and ill correct you

sure

tardy jay May 23, 2025, 8:24 AM

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rapid ruin so it connects my letters?

yes so that what i mentioned as 'not everything is opposite'

rapid ruin May 23, 2025, 8:24 AM

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ohhh ok makes sense now

rapid ruin May 23, 2025, 8:26 AM

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rapid ruin i peeked into my teachers solution for it and there is this standing, do u know ...

the def is to classify an action, i assume caesarBreak is to encrypt the whole thing,

rapid ruin May 23, 2025, 8:27 AM

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rapid ruin fixed it

for i in range makes a for loop in the range of one step per time for 26 steps each

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but the last part i a mystery to me

tardy jay May 23, 2025, 8:28 AM

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rapid ruin for i in range makes a for loop in the range of one step per time for 26 steps e...

here you also need to note what is iterating (variable that changes in loop)

rapid ruin May 23, 2025, 8:29 AM

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?

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the i

tardy jay May 23, 2025, 8:29 AM

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its named i but in print

print("Key:",i, "Text:",caesarDec(geheimtext, i))

you can see that it also mentioned as Key in output

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ok let say print("Key: ", i) for now do you understand what this do?

rapid ruin May 23, 2025, 8:30 AM

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no

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:(

tardy jay May 23, 2025, 8:32 AM

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so in print you can put as many argument as you want to print
so for example your code

print("Original: "+text.upper())

can be rewriten as

print("Original:", text.upper())

rapid ruin May 23, 2025, 8:33 AM

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okay

tardy jay May 23, 2025, 8:33 AM

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also note that print("Original:", text.upper()) will put space between all arguments automaticaly

rapid ruin May 23, 2025, 8:35 AM

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wait why does it do that

tardy jay May 23, 2025, 8:35 AM

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ok so returning back to

print("Key:",i, "Text:",caesarDec(geheimtext, i))

It will print

Key: <value_of_i> Text: <result_of_caesarDec>

tardy jay May 23, 2025, 8:35 AM

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rapid ruin wait why does it do that

what exactly?

rapid ruin May 23, 2025, 8:35 AM

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why does it put space between all arguments

tardy jay May 23, 2025, 8:37 AM

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rapid ruin why does it put space between all arguments

i mean in output
for example if a='A', and b='B'
print(a, b)
will print

A B

while result of print(a+b)

AB

this separator between them is space by default, but it can be changed

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One sec, ill edit it to strings

rapid ruin May 23, 2025, 8:37 AM

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ok so if it wasnt there it would just be ab

tardy jay May 23, 2025, 8:39 AM

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tardy jay ok so returning back to ``` print("Key:",i, "Text:",caesarDec(geheimtext, i)) `...

ok how about this one, do you understand it?

rapid ruin May 23, 2025, 8:40 AM

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Key: <value_of_i> Text: this yes the other no

tardy jay May 23, 2025, 8:42 AM

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okay so in print

print("Key:",i, "Text:",caesarDec(geheimtext, i))

we called function that decodes
its allowed
it means that program will run caesarDec(geheimtext, i) first and use result of that function in print

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it like evaluating an expression with parentheses in math (you evaluate result in parentheses first)

rapid ruin May 23, 2025, 8:46 AM

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okay, so it will run through the keys from the text, and then find results for the variable i so that geheimtext becomes klartext

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sry for taking long for answeres i only got 10 mins left bevore i have to go take the exam

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(i do this code over and over in thonny)

tardy jay May 23, 2025, 8:49 AM

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you got idea of function correct but not how its implemented
it will literaly try to decode with every 26 key, and print all results, so code itself dont know what is correct key, but just showing all decode variants (if initial text is readable then human will able to detect correct result)

rapid ruin May 23, 2025, 8:50 AM

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So thats why it aint writing the thing in a sentence but like this

tardy jay May 23, 2025, 8:52 AM

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seems not correct what is your geheimtext?

rapid ruin May 23, 2025, 8:53 AM

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text="DIE SPINNEN DIE GALLIER!"

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do u think i can use my formula collection in the exam?

tardy jay May 23, 2025, 8:54 AM

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what is formula collection?

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you have another mistake that i didnt noticed

rapid ruin May 23, 2025, 8:57 AM

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its a collection of basic knowledge whis we can usually use in math physics and chem exams

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oh no

tardy jay May 23, 2025, 8:58 AM

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in encode in decode functions
you need move return on one block left

rapid ruin May 23, 2025, 8:58 AM

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u can continue to text but igtg, ic caan continue reading ur messages in the train

tardy jay May 23, 2025, 8:59 AM

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so its

def caesarEnc(Klartext, Key):
    geheimtext=""
    klartext=klartext.upper()
    for buchstabe in klartext:
        unicode=ord(buchstabe)
        unicode+=key
        if unicode>90:
            unicode-=26
        geheimbuchstabe=chr(unicode)
        geheimtext+=geheimbuchstabe
    return geheimtext # moved return

before that you had problem because your code was encoding only first letter (thats why you can see only one letter in your console)

rapid ruin May 23, 2025, 9:01 AM

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The return geheimtext is new

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Do I always have to use it if i want the full sentence decodet

tardy jay May 23, 2025, 9:03 AM

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before was problem that return was inside loop so its like start loop do 1 cycle and return result

but it should run loop fully and after that return result

tardy jay May 23, 2025, 9:05 AM

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rapid ruin The return geheimtext is new

return geheimtext is just says that result of function is geheimtext (function also stops immediatly, that why we want it outside of loop)

rapid ruin May 23, 2025, 9:11 AM

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Okay

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Since this problem seems solved

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THANKYOUSMFORHELPINGME

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U are very good at making ppl understand things

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tranquil orbitBOT May 23, 2025, 10:18 AM

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#🔒 why does my code not work

text="DIE SPINNEN DIE GALLIER!"