def confirm(question, assume_yes=True):
"""
Ask user a yes/no question and return their response as a boolean.
``question`` should be a simple, grammatically complete question such as
"Do you wish to continue?", and will have a string similar to ``" [Y/n] "``
appended automatically. This function will *not* append a question mark for
you.
By default, when the user presses Enter without typing anything, "yes" is
assumed. This can be changed by specifying ``affirmative=False``.
.. note::
If the user does not supplies input that is (case-insensitively) equal
to "y", "yes", "n" or "no", they will be re-prompted until they do.
:param unicode question: The question part of the prompt.
:param bool assume_yes:
Whether to assume the affirmative answer by default. Default value:
``True``.
:returns: A `bool`.
"""
# Set up suffix
if assume_yes:
suffix = "Y/n"
else:
suffix = "y/N"
# Loop till we get something we like
# TODO: maybe don't do this? It can be annoying. Turn into 'q'-for-quit?
while True:
# TODO: ensure that this is Ctrl-C friendly, ISTR issues with
# raw_input/input on some Python versions blocking KeyboardInterrupt.
response = input("{0} [{1}] ".format(question, suffix))
response = response.lower().strip() # Normalize
# Default
if not response:
return assume_yes
# Yes
if response in ['y', 'yes']:
return True
# No
if response in ['n', 'no']:
return False
# Didn't get empty, yes or no, so complain and loop
err = "I didn't understand you. Please specify '(y)es' or '(n)o'."
print(err, file=sys.stderr)
def confirm(question, assume_yes=True):
"""
Ask user a yes/no question and return their response as a boolean.
``question`` should be a simple, grammatically complete question such as
"Do you wish to continue?", and will have a string similar to ``" [Y/n] "``
appended automatically. This function will *not* append a question mark for
you.
By default, when the user presses Enter without typing anything, "yes" is
assumed. This can be changed by specifying ``affirmative=False``.
.. note::
If the user does not supplies input that is (case-insensitively) equal
to "y", "yes", "n" or "no", they will be re-prompted until they do.
:param str question: The question part of the prompt.
:param bool assume_yes:
Whether to assume the affirmative answer by default. Default value:
``True``.
:returns: A `bool`.
"""
# Set up suffix
if assume_yes:
suffix = "Y/n"
else:
suffix = "y/N"
# Loop till we get something we like
# TODO: maybe don't do this? It can be annoying. Turn into 'q'-for-quit?
while True:
# TODO: ensure that this is Ctrl-C friendly, ISTR issues with
# raw_input/input on some Python versions blocking KeyboardInterrupt.
response = input("{0} [{1}] ".format(question, suffix))
response = response.lower().strip() # Normalize
# Default
if not response:
return assume_yes
# Yes
if response in ['y', 'yes']:
return True
# No
if response in ['n', 'no']:
return False
# Didn't get empty, yes or no, so complain and loop
err = "I didn't understand you. Please specify '(y)es' or '(n)o'."
print(err, file=sys.stderr)
import sys
from invoke.vendor.six.moves import input
if input("What's the password?") != "Rosebud":
sys.exit(1)
import sys
from invoke.vendor.six.moves import input
if input("standard out") != "with it":
sys.exit(1)
# Since raw_input(text) defaults to stdout...
sys.stderr.write("standard error")
sys.stderr.flush()
if input() != "between chair and keyboard":
sys.exit(1)
from invoke.vendor.six.moves import input
if input("What's the password?") == "Rosebud":
print("You're not Citizen Kane!")
# This should sit around forever like e.g. a bad sudo prompt would, but the
# responder ought to be looking for the above and aborting instead.
input("Seriously, what's the password???")
