username and password program using python 3.4
The text file is displayed like this:
apple,crumble
Where apple is the username and crumble is password, separated by the comma.
I need a password and username system to make sure the user is authorised. so far I've done this:
username = input("Please enter your name. ")
print("Your username has been created and is", username)
password = input("Now please create a password. ")
file = open("Login.txt","a")
file.write (username)
file.write (",")
file.write (password)
file.write("n")
file.close()
It saves the user username and password in a text file.
So how do I create a login system that checks for the username and the password from the text file line by line?
For example if a user enters a password and username located on line 7, the program needs to check all previous lines until it finds the input that the user has entered.
I can only use python, no other programs such as Pandas or CMD.
Thanks
python
edited Nov 15 '18 at 15:24
kit
1,1063817
asked Nov 15 '18 at 14:40
xxMagnumxxMagnum
116
add a comment |
The text file is displayed like this:
apple,crumble
Where apple is the username and crumble is password, separated by the comma.
I need a password and username system to make sure the user is authorised. so far I've done this:
username = input("Please enter your name. ")
print("Your username has been created and is", username)
password = input("Now please create a password. ")
file = open("Login.txt","a")
file.write (username)
file.write (",")
file.write (password)
file.write("n")
file.close()
It saves the user username and password in a text file.
So how do I create a login system that checks for the username and the password from the text file line by line?
For example if a user enters a password and username located on line 7, the program needs to check all previous lines until it finds the input that the user has entered.
I can only use python, no other programs such as Pandas or CMD.
Thanks
python
edited Nov 15 '18 at 15:24
kit
1,1063817
asked Nov 15 '18 at 14:40
xxMagnumxxMagnum
116
1
What have you tried? What specifically do you need help with? Do you know how to read a file?
– Carcigenicate
Nov 15 '18 at 14:44
1
"i can only use python, no other programs such as pandas...". Pandas is a module in Python, not a new language or a program.
– Austin
Nov 15 '18 at 14:46
Hint: 1. declare a variable loginok=False 2. read the file one line at a time 3. for each line, strip the newline and split on comma (,) 4. first field is a username and second a password 5. if both match, set loginok to True and exit from loop Then after the loop, loginok tells you whether login was successful.
– Serge Ballesta
Nov 15 '18 at 14:57
The code to create to the password file is mostly redundant to the textual description and is no substitute for code attemtping to solve the query problem.
– guidot
Nov 15 '18 at 15:01
add a comment |
The text file is displayed like this:
apple,crumble
Where apple is the username and crumble is password, separated by the comma.
I need a password and username system to make sure the user is authorised. so far I've done this:
username = input("Please enter your name. ")
print("Your username has been created and is", username)
password = input("Now please create a password. ")
file = open("Login.txt","a")
file.write (username)
file.write (",")
file.write (password)
file.write("n")
file.close()
It saves the user username and password in a text file.
So how do I create a login system that checks for the username and the password from the text file line by line?
For example if a user enters a password and username located on line 7, the program needs to check all previous lines until it finds the input that the user has entered.
I can only use python, no other programs such as Pandas or CMD.
Thanks
python
edited Nov 15 '18 at 15:24
kit
1,1063817
asked Nov 15 '18 at 14:40
xxMagnumxxMagnum
116
The text file is displayed like this:
apple,crumble
Where apple is the username and crumble is password, separated by the comma.
I need a password and username system to make sure the user is authorised. so far I've done this:
username = input("Please enter your name. ")
print("Your username has been created and is", username)
password = input("Now please create a password. ")
file = open("Login.txt","a")
file.write (username)
file.write (",")
file.write (password)
file.write("n")
file.close()
It saves the user username and password in a text file.
So how do I create a login system that checks for the username and the password from the text file line by line?
For example if a user enters a password and username located on line 7, the program needs to check all previous lines until it finds the input that the user has entered.
I can only use python, no other programs such as Pandas or CMD.
Thanks
python
python
edited Nov 15 '18 at 15:24
kit
1,1063817
asked Nov 15 '18 at 14:40
xxMagnumxxMagnum
116
edited Nov 15 '18 at 15:24
kit
1,1063817
asked Nov 15 '18 at 14:40
xxMagnumxxMagnum
116
edited Nov 15 '18 at 15:24
kit
1,1063817
edited Nov 15 '18 at 15:24
kit
1,1063817
edited Nov 15 '18 at 15:24
kit
1,1063817
1,1063817
asked Nov 15 '18 at 14:40
xxMagnumxxMagnum
116
asked Nov 15 '18 at 14:40
xxMagnumxxMagnum
116
asked Nov 15 '18 at 14:40
xxMagnumxxMagnum
116
116
1
What have you tried? What specifically do you need help with? Do you know how to read a file?
– Carcigenicate
Nov 15 '18 at 14:44
1
"i can only use python, no other programs such as pandas...". Pandas is a module in Python, not a new language or a program.
– Austin
Nov 15 '18 at 14:46
Hint: 1. declare a variable loginok=False 2. read the file one line at a time 3. for each line, strip the newline and split on comma (,) 4. first field is a username and second a password 5. if both match, set loginok to True and exit from loop Then after the loop, loginok tells you whether login was successful.
– Serge Ballesta
Nov 15 '18 at 14:57
The code to create to the password file is mostly redundant to the textual description and is no substitute for code attemtping to solve the query problem.
– guidot
Nov 15 '18 at 15:01
add a comment |
1
What have you tried? What specifically do you need help with? Do you know how to read a file?
– Carcigenicate
Nov 15 '18 at 14:44
1
"i can only use python, no other programs such as pandas...". Pandas is a module in Python, not a new language or a program.
– Austin
Nov 15 '18 at 14:46
Hint: 1. declare a variable loginok=False 2. read the file one line at a time 3. for each line, strip the newline and split on comma (,) 4. first field is a username and second a password 5. if both match, set loginok to True and exit from loop Then after the loop, loginok tells you whether login was successful.
– Serge Ballesta
Nov 15 '18 at 14:57
The code to create to the password file is mostly redundant to the textual description and is no substitute for code attemtping to solve the query problem.
– guidot
Nov 15 '18 at 15:01
1
1
What have you tried? What specifically do you need help with? Do you know how to read a file?
– Carcigenicate
Nov 15 '18 at 14:44
What have you tried? What specifically do you need help with? Do you know how to read a file?
– Carcigenicate
Nov 15 '18 at 14:44
1
1
"i can only use python, no other programs such as pandas...". Pandas is a module in Python, not a new language or a program.
– Austin
Nov 15 '18 at 14:46
"i can only use python, no other programs such as pandas...". Pandas is a module in Python, not a new language or a program.
– Austin
Nov 15 '18 at 14:46
Hint: 1. declare a variable loginok=False 2. read the file one line at a time 3. for each line, strip the newline and split on comma (
,) 4. first field is a username and second a password 5. if both match, set loginok to True and exit from loop Then after the loop, loginok tells you whether login was successful.– Serge Ballesta
Nov 15 '18 at 14:57
Hint: 1. declare a variable loginok=False 2. read the file one line at a time 3. for each line, strip the newline and split on comma (
,) 4. first field is a username and second a password 5. if both match, set loginok to True and exit from loop Then after the loop, loginok tells you whether login was successful.– Serge Ballesta
Nov 15 '18 at 14:57
The code to create to the password file is mostly redundant to the textual description and is no substitute for code attemtping to solve the query problem.
– guidot
Nov 15 '18 at 15:01
The code to create to the password file is mostly redundant to the textual description and is no substitute for code attemtping to solve the query problem.
– guidot
Nov 15 '18 at 15:01
add a comment |
1 Answer
1
active
oldest
votes
You can create dictionary first from that file then you can easily check username exsits then match the password as well. In here u need unique usernames(login system need it)
dict = {}
with open("Login.txt") as f:
for line in f:
(userName, password) = line.split(',')
dict[userName] = password
Then check if user name exists here. Then check password as well like below
if enteredName in dict:
if dict[enteredName] == enteredPassword:
print("login success")
eles:
print("wrong password")
else:
print("login failed")
answered Nov 15 '18 at 14:48
LuceferLucefer
1,2361514
add a comment |
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oldest
votes
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oldest
votes
You can create dictionary first from that file then you can easily check username exsits then match the password as well. In here u need unique usernames(login system need it)
dict = {}
with open("Login.txt") as f:
for line in f:
(userName, password) = line.split(',')
dict[userName] = password
Then check if user name exists here. Then check password as well like below
if enteredName in dict:
if dict[enteredName] == enteredPassword:
print("login success")
eles:
print("wrong password")
else:
print("login failed")
answered Nov 15 '18 at 14:48
LuceferLucefer
1,2361514
add a comment |
You can create dictionary first from that file then you can easily check username exsits then match the password as well. In here u need unique usernames(login system need it)
dict = {}
with open("Login.txt") as f:
for line in f:
(userName, password) = line.split(',')
dict[userName] = password
Then check if user name exists here. Then check password as well like below
if enteredName in dict:
if dict[enteredName] == enteredPassword:
print("login success")
eles:
print("wrong password")
else:
print("login failed")
answered Nov 15 '18 at 14:48
LuceferLucefer
1,2361514
add a comment |
You can create dictionary first from that file then you can easily check username exsits then match the password as well. In here u need unique usernames(login system need it)
dict = {}
with open("Login.txt") as f:
for line in f:
(userName, password) = line.split(',')
dict[userName] = password
Then check if user name exists here. Then check password as well like below
if enteredName in dict:
if dict[enteredName] == enteredPassword:
print("login success")
eles:
print("wrong password")
else:
print("login failed")
answered Nov 15 '18 at 14:48
LuceferLucefer
1,2361514
You can create dictionary first from that file then you can easily check username exsits then match the password as well. In here u need unique usernames(login system need it)
dict = {}
with open("Login.txt") as f:
for line in f:
(userName, password) = line.split(',')
dict[userName] = password
Then check if user name exists here. Then check password as well like below
if enteredName in dict:
if dict[enteredName] == enteredPassword:
print("login success")
eles:
print("wrong password")
else:
print("login failed")
answered Nov 15 '18 at 14:48
LuceferLucefer
1,2361514
edited Nov 15 '18 at 14:53
answered Nov 15 '18 at 14:48
LuceferLucefer
1,2361514
answered Nov 15 '18 at 14:48
LuceferLucefer
1,2361514
answered Nov 15 '18 at 14:48
LuceferLucefer
1,2361514
1,2361514
add a comment |
add a comment |
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1
What have you tried? What specifically do you need help with? Do you know how to read a file?
– Carcigenicate
Nov 15 '18 at 14:44
1
"i can only use python, no other programs such as pandas...". Pandas is a module in Python, not a new language or a program.
– Austin
Nov 15 '18 at 14:46
Hint: 1. declare a variable loginok=False 2. read the file one line at a time 3. for each line, strip the newline and split on comma (
,) 4. first field is a username and second a password 5. if both match, set loginok to True and exit from loop Then after the loop, loginok tells you whether login was successful.– Serge Ballesta
Nov 15 '18 at 14:57
The code to create to the password file is mostly redundant to the textual description and is no substitute for code attemtping to solve the query problem.
– guidot
Nov 15 '18 at 15:01