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def required(label):
value = input(f'{label}: ').strip()
if value:
print()
return value
else:
return required(label)
def multi_line(label):
lines = ''
print(f'{label}, type [end] to finish:\n')
while True:
value = input()
if value.strip() == '[end]':
break
elif value.strip():
lines += f'{value.strip()}\n'
print()
return lines.strip()
def optional(label):
value = input(f'{label} (optional): ').strip()
print()
return value
def non_empty_list(label):
value = input(f'{label} (separated by commas): ')
values = [x.strip() for x in value.split(',') if x.strip()]
if len(values) > 0:
print()
return values
else:
return non_empty_list(label)
def integer(label):
value = input(f'{label}: ').strip()
if value.isdigit():
print()
return int(value)
else:
return integer(label)
def choices(label, xs):
pp_choices = '/'.join(xs)
value = input(f'{label} [{pp_choices}] ')
if value in xs:
print()
return value
else:
return choices(label, xs)
def confirm(message):
if choices(message, ['y', 'n']) == 'n':
print('\nStopping.')
exit(1)
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