🔒 how do i convert this code so it stops when a single "code non valide" happens using elif | Python | Page 1

merry waspBOT Feb 15, 2026, 5:10 PM

#

Hey @alpine pier!

Please edit your message to use a code block

Add a py after the three backticks.

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

This will result in the following:

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

#

@alpine pier

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alpine pier Feb 15, 2026, 5:11 PM

#

ch=str(input("code du produit?"))
a=ch.find("#")
if a==-1:
 print("code non valide")
ch1=ch[:a]
ch2=ch1[:1]
if ch1<"A" or ch1> "Z":
    print("code non valide")
ch3=ch1[1:a]
if ch3.isdecimal() != True:
    print("code non valide")
ch4=ch[a+1:]
b=ch4.find("#")
if b==-1:
    print("code non valide")
ch5=ch4[0:b]
if ch5.isdecimal() != True and len(ch5)>10:
    print("code non valide")
c=ch4.find("#")
ch6=ch4[c+1:]
if not int(ch6)>=1:
    print("code non valide")```

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@tribal badge sorry for the pin

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heres the finished code

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now i js need to use elif

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idk how tho

tribal badge Feb 15, 2026, 5:12 PM

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it would look like this

alpine pier Feb 15, 2026, 5:12 PM

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wait lets say i do the the non if statements first

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then i check the conditions

tribal badge Feb 15, 2026, 5:12 PM

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if condition:
    something
elif condition:
    something

alpine pier Feb 15, 2026, 5:13 PM

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then i use if and elif to check the conditions

tribal badge Feb 15, 2026, 5:13 PM

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you can't do

if condition:
    something
another something
elif condition:
    something

alpine pier Feb 15, 2026, 5:13 PM

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and end off with else

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for code valid

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yea i think that can work

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lemme do it

tribal badge Feb 15, 2026, 5:14 PM

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alpine pier wait lets say i do the the non if statements first

you can do that

alpine pier Feb 15, 2026, 5:14 PM

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tribal badge you can do that

yea imma do that

tribal badge Feb 15, 2026, 5:14 PM

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or you can indent them

alpine pier Feb 15, 2026, 5:14 PM

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lemme js copy them here so i dont have to type them again

tribal badge Feb 15, 2026, 5:15 PM

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in theory its better to get them as you need them. For example if you find ch1 and then the first condition makes the code invalid, then there's no point finding ch2 ch3 etc. Its a waste of processing time

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in this case it doesn't matter because it takes less than a second but inefficiencies stack up

alpine pier Feb 15, 2026, 5:16 PM

#

if a==-1:
print("code non valide")

if ch1<"A" or ch1> "Z":
print("code non valide")

if ch3.isdecimal() != True:
print("code non valide")

if b==-1:
print("code non valide")

if ch5.isdecimal() != True and len(ch5)>10:
print("code non valide")

if not int(ch6)>=1:
print("code non valide")

merry waspBOT Feb 15, 2026, 5:16 PM

#

Hey @alpine pier!

Please edit your message to use a code block

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

This will result in the following:

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

alpine pier Feb 15, 2026, 5:16 PM

#

tribal badge in theory its better to get them as you need them. For example if you find `ch1`...

tbh rn i js need to finish this code

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idk how to do it as u said in this message

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its good enough for now

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isnt that a motto for yall

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😭

tribal badge Feb 15, 2026, 5:18 PM

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alpine pier if a==-1: print("code non valide") if ch1<"A" or ch1> "Z": print("code non...

where are your elifs here though?

alpine pier Feb 15, 2026, 5:18 PM

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tribal badge where are your elifs here though?

gonna do them rn

tribal badge Feb 15, 2026, 5:18 PM

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okay ping me if you're stuck

alpine pier Feb 15, 2026, 5:20 PM

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@tribal badge it works

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yippee

#

ch=str(input("code du produit?"))
a=ch.find("#")
ch1=ch[:a]
ch2=ch1[:1]
ch3=ch1[1:a]
ch4=ch[a+1:]
b=ch4.find("#")
ch5=ch4[0:b]
c=ch4.find("#")
ch6=ch4[c+1:]
if a==-1:
 print("code non valide")
elif ch1<"A" or ch1> "Z":
    print("code non valide")
elif ch3.isdecimal() != True:
    print("code non valide")
elif  b==-1:
    print("code non valide")
elif ch5.isdecimal() != True and len(ch5)>10:
    print("code non valide")
elif not int(ch6)>=1:
    print("code non valide")
else:
    print ("code valide")```

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why was i stuck on this for 2 hours

tribal badge Feb 15, 2026, 5:22 PM

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you can also just do something like

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actually nevermind

alpine pier Feb 15, 2026, 5:23 PM

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tribal badge you can also just do something like

if its def or something

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we still havent learned that in class

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and the teacher will mark it wrongg

tribal badge Feb 15, 2026, 5:23 PM

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yeah it doesn't matter i was going to say something else

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your spacing is a little bit funny but it should be fine

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like extra whitespace or not enough spaces in some parts

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but its fine

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thats just style

alpine pier Feb 15, 2026, 5:25 PM

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tribal badge yeah it doesn't matter i was going to say something else

oh

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i do that to make it less cluttered for my eyes

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@tribal badge anyways uh

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thanks for the help

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ts took me way too long

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😭

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!close

merry waspBOT Feb 15, 2026, 5:28 PM

#

Python help channel closed with !close

This help channel has been closed. Feel free to create a new post in #1035199133436354600. To maximize your chances of getting a response, check out this guide on asking good questions.

#🔒 how do i convert this code so it stops when a single "code non valide" happens using elif