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Username review function

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Write a function that receives a username and if it was a character except the lowercase English letters, FALSE and otherwise TRUE

14 Answers

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let msg = 'error'
alert(msg) 
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let msg = 'error'
alert(msg) 
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let msg = 'error'
alert(msg) 
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def validate_username(username):
    for char in username:
        if not char.islower():
            return False
    return True
name=input("name: ")    
print(validate_username(name))
class name:
    def __init__(self,name1):
        self.name1=name1
    def __str__(self):       
        for i in  self.name1:
            if not i.isupper():
                return ('true')
            else:
                return ('flase')
x=str(input('please enter your name:'))
ob=name(x)
print(ob)
Omid.asadi Download Python
def check_name(username):
    if not username.isalpha() or not username.islower():
        return False
    return True

print(check_name('erphan'))
Erphan Download Python
listt=[' ','a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z']
username=input("enter username: ")
def check_username(listt,username):
    listt_check=[]
    for i in username:
        if i in listt:
            listt_check.append("True")
        else:
            listt_check.append('false')        
    if 'false' in listt_check:
        status='false' 
    else:
        status="true"   
    print(status)  
check_username(listt,username)
User 155 Download Python
def Name_Karbari(n) :
    H = "QWERTYUIOPLKJHGFDSAZXCVBNM"
    for i in n :
        if i in H :
            return False
    return True

Arshia.a Download Python
def is_valid_username(username):
    # Checking whether all characters are in English lowercase username
    for char in username:
        if not ('a' <= char <= 'z'):
            return False
    return True

# Example of how to use
username_input = input("لطفاً نام کاربری را وارد کنید: ")
if is_valid_username(username_input):
    print("نام کاربری معتبر است.")
else:
    print("نام کاربری باید فقط شامل حروف کوچک انگلیسی باشد.")
User 136 Download Python
def username(name):
    return True if name.islower() else False
i=input("name:")
print(username(i))
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