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"""
keyring_demo.py
This demo shows how to create a new keyring and enable it in keyring lib.
Created by Kang Zhang on 2009-07-12
"""
import os
KEYRINGRC = "keyringrc.cfg"
def load_keyring_by_config():
"""This function shows how to enable a keyring using config file
"""
# create the config file
config_file = open(KEYRINGRC,'w')
config_file.writelines(["[backend]\n",
# the path for the user created keyring
"keyring-path= %s\n" % str(os.path.abspath(__file__))[:-16],
# the name of the keyring class
"default-keyring=simplekeyring.SimpleKeyring\n" ])
config_file.close()
# import the keyring lib, the lib will automaticlly load the
# config file and load the user defined module
import keyring
# invoke the keyring to store and fetch the password
try:
keyring.set_password("demo-service", "tarek", "passexample")
print "password stored sucessfully"
except keyring.backend.PasswordSetError:
print "failed to store password"
print "password", keyring.get_password("demo-service", "tarek")
os.remove(KEYRINGRC)
def set_keyring_in_runtime():
"""This function shows how to create a keyring manully and use it
in runtime
"""
# define a new keyring class which extends the KeyringBackend
import keyring.backend
class TestKeyring(keyring.backend.KeyringBackend):
"""A test keyring which always outputs same password
"""
def supported(self): return 0
def set_password(self, servicename, username, password): return 0
def get_password(self, servicename, username):
return "password from TestKeyring"
# set the keyring for keyring lib
import keyring
keyring.set_keyring(TestKeyring())
# invoke the keyring lib
try:
keyring.set_password("demo-service", "tarek", "passexample")
print "password stored sucessfully"
except keyring.backend.PasswordSetError:
print "failed to store password"
print "password", keyring.get_password("demo-service", "tarek")
def main():
"""This script shows how to enable the keyring using the config
file and in runtime.
"""
load_keyring_by_config()
set_keyring_in_runtime()
if __name__ == '__main__':
main()
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