I'm very new to python, so as one of the first projects I decided to a simple log-in menu, however, it gives me a mistake shown at the bottom.
The link to the tutorial I used:
https://www.youtube.com/watch?v=dR_cDapPWyY&ab_channel=techWithId
This is the code to the log-in menu:
def welcome():
print("Welcome to your dashboard")
def gainAccess(Username=None, Password=None):
Username = input("Enter your username:")
Password = input("Enter your Password:")
if not len(Username or Password) < 1:
if True:
db = open("database.txt", "C:\Users\DeePak\OneDrive\Desktop\database.txt.txt")
d = []
f = []
for i in db:
a,b = i.split(",")
b = b.strip()
c = a,b
d.append(a)
f.append(b)
data = dict(zip(d, f))
try:
if Username in data:
hashed = data[Username].strip('b')
hashed = hashed.replace("'", "")
hashed = hashed.encode('utf-8')
try:
if bcrypt.checkpw(Password.encode(), hashed):
print("Login success!")
print("Hi", Username)
welcome()
else:
print("Wrong password")
except:
print("Incorrect passwords or username")
else:
print("Username doesn't exist")
except:
print("Password or username doesn't exist")
else:
print("Error logging into the system")
else:
print("Please attempt login again")
gainAccess()
# b = b.strip()
# accessDb()
def register(Username=None, Password1=None, Password2=None):
Username = input("Enter a username:")
Password1 = input("Create password:")
Password2 = input("Confirm Password:")
db = open("database.txt", "C:\Users\DeePak\OneDrive\Desktop\Name\database.txt")
d = []
for i in db:
a,b = i.split(",")
b = b.strip()
c = a,b
d.append(a)
if not len(Password1)<=8:
db = open("database.txt", "C:\Users\DeePak\OneDrive\Desktop\Name\database.txt")
if not Username ==None:
if len(Username) <1:
print("Please provide a username")
register()
elif Username in d:
print("Username exists")
register()
else:
if Password1 == Password2:
Password1 = Password1.encode('utf-8')
Password1 = bcrypt.hashpw(Password1, bcrypt.gensalt())
db = open("database.txt", "C:\Users\DeePak\OneDrive\Desktop\Name\database.txt")
db.write(Username+", "+str(Password1)+"\n")
print("User created successfully!")
print("Please login to proceed:")
# print(texts)
else:
print("Passwords do not match")
register()
else:
print("Password too short")
def home(option=None):
print("Welcome, please select an option")
option = input("Login | Signup:")
if option == "Login":
gainAccess()
elif option == "Signup":
register()
else:
print("Please enter a valid parameter, this is case-sensitive")
# register(Username, Password1, Password2)
# gainAccess(Username, Password1)
home()
When I run it, I get this issue:
db = open("database.txt", "C:\Users\DeePak\OneDrive\Desktop\Name\database.txt")
^
SyntaxError: (unicode error) 'unicodeescape' codec can't decode bytes in position 2-3: truncated \UXXXXXXXX escape
Use
r"C:\Users\DeePak\OneDrive\Desktop\database.txt.txt"
Explanation in String and Bytes literals (slightly reformated):
Escape sequences only recognized in Python string literals are:
Escape Sequence Meaning
\ooo Character with octal value ooo (up to three octal digits)
\xnn Character with 8-bit hex value nn
\unnnn Character with 16-bit hex value nnnn
\Unnnnnnnn Character with 32-bit hex value nnnnnnnn
\N{name} Character named name in the Unicode database
Surrogates are handled exceptionally
Unless an 'r' or 'R' prefix is present, escape sequences
in string and bytes literals are interpreted according to rules
similar to those used by Standard C.
The recognized escape sequences are:
Escape Sequence Meaning Notes
\newline Backslash and newline ignored
\\ Backslash (\)
\' Single quote (')
\" Double quote (")
\a ASCII Bell (BEL) \x07
\b ASCII Backspace (BS) \x08
\f ASCII Formfeed (FF) \x0c
\n ASCII Linefeed (LF) \x0a
\r ASCII Carriage Return (CR) \x0d
\t ASCII Horizontal Tab (TAB) \x09
\v ASCII Vertical Tab (VT) \x0b
\ooo Character with octal value ooo (1,3)
\xhh Character with hex value hh (2,3)
Escape sequences only recognized in string literals are:
Escape Sequence Meaning Notes
\N{name} Character named name in the Unicode database (4)
\uxxxx Character with 16-bit hex value xxxx (5)
\Uxxxxxxxx Character with 32-bit hex value xxxxxxxx (6)
Notes:
1. As in Standard C, up to three octal digits are accepted.
2. Unlike in Standard C, exactly two hex digits are required.
3. In a bytes literal, hexadecimal and octal escapes denote
the byte with the given value.
In a string literal, these escapes denote a Unicode character
with the given value.
4. Changed in version 3.3: Support for name aliases 1 has been added.
5. Exactly four hex digits are required.
6. Any Unicode character can be encoded this way.
Exactly eight hex digits are required.
Unlike Standard C, all unrecognized escape sequences are left
in the string unchanged, i.e., the backslash is left in the result.
Not sure about your open() syntax. Maybe change it to the followig?
db = open( r"C:\Users\DeePak\OneDrive\Desktop\Name\database.txt", 'w')