CODEWITHSUNDEEP
pythonpasswordsgetpass
Borut Flis
Borut Flis

Reputation: 16415

Trouble with masking password input in Python

I am using Python. I am making a script where the user has to enter the password in the terminal.

I have already found a solution on this website by using the getpass module.

new_password=getpass.getpass(prompt="Type new password: ")

The problem is I get a warning and the password input gets displayed as well.

Warning (from warnings module):
  File "C:\Python34\lib\getpass.py", line 101
    return fallback_getpass(prompt, stream)
GetPassWarning: Can not control echo on the terminal.
Warning: Password input may be echoed.

Upvotes: 0

Views: 17778

Answers (2)

Sundaramoorthy Anandh
Sundaramoorthy Anandh

Reputation: 601

Use command prompt as admin to run this program.

Reason is because system environment where stdin, stdout and stderr are connected to /dev/tty, or another PTY-compliant device.

The IDLE REPL does not meet this requirement.

And change new_password=getpass.getpass(prompt="Type new password: ") to new_password=getpass.getpass("Type new password: ") if you are using Windows OS or new_password=getpass.getpass("Type new password: ", None) for Linux distributions.

This would help you for sure:

import getpass
pw = getpass.getpass("Enter Your Password Here: ")
if pw == "password":
    print("You are Welcome...")
else:
    print("Sorry! You're are not allowed.")

As per Python documentation:

getpass.getpass([prompt[, stream]])

Prompt the user for a password without echoing. The user is prompted using the string prompt, which defaults to 'Password: '. On Unix, the prompt is written to the file-like object stream. stream defaults to the controlling terminal (/dev/tty) or if that is unavailable to sys.stderr (this argument is ignored on Windows)

Changed in version 2.5: The stream parameter was added.

Note: If you call getpass from within IDLE, the input may be done in the terminal you launched IDLE from rather than the idle window itself.

Upvotes: 1

BPL
BPL

Reputation: 9863

Using a normal terminal with this code:

import getpass
new_password=getpass.getpass(prompt="Type new password: ")
print(new_password)

Will work alright, but if we try the same with IDLE we'll get the error you've exposed in your question.

Now, if we look at the docs here you'll see this is intended, it says:

Note If you call getpass from within IDLE, the input may be done in the terminal you launched IDLE from rather than the idle window itself.

Upvotes: 0

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