when the check passes, otherwise an error message will be returned: def check_age(p): # return None when the check passes, otherwise return the error ˓→message if p < 10: return 'Too young!!' if p > the input value is valid, it returns None. When the input value is invalid, it returns an error message string. For example: def check_age(age): if age>30: return 'Too old' elif age<10: return 'Too maximum file size to be uploaded allowed by the web framework can be set through the websocket_max_message_size parameter pywebio.input.input_group(label='', inputs=None, validate=None, cancelable=False)

when the check passes, otherwise an error message will be returned: def check_age(p): # return None when the check passes, otherwise return the error ˓→message if p < 10: return 'Too young!!' if p > the input value is valid, it returns None. When the input value is invalid, it returns an error message string. For example: def check_age(age): if age>30: return 'Too old' elif age<10: return 'Too maximum file size to be uploaded allowed by the web framework can be set through the websocket_max_message_size parameter pywebio.input.input_group(label='', inputs=None, validate=None, cancelable=False)

parameter. The validation function should return None when the check passes, otherwise an error message will be returned: # Password input password = input("Input password", type=PASSWORD) # Drop-down required=True) def check_age(p): # return None when the check passes, otherwise return the error message if p < 10: return 'Too young!!' if p > 60: return 'Too old!!' When the user the input value is valid, it returns None. When the input value is invalid, it returns an error message string. For example: name (str) – A string specifying a name for the input. Used with input_group()

parameter. The validation function should return None when the check passes, otherwise an error message will be returned: # Password input password = input("Input password", type=PASSWORD) # Drop-down required=True) def check_age(p): # return None when the check passes, otherwise return the error message if p < 10: return 'Too young!!' if p > 60: return 'Too old!!' When the user the input value is valid, it returns None. When the input value is invalid, it returns an error message string. For example: name (str) – A string specifying a name for the input. Used with input_group()

when the check passes, otherwise an error message will be returned: def check_age(p): # return None when the check passes, otherwise return the error ˓→message if p < 10: return 'Too young!!' if p > word!') # Show a PopUp popup('popup title', 'popup text content') # Show a notification message toast('New message ') For all output functions provided by PyWebIO, please refer to the pywebio.output module the input value is valid, it returns None. When the input value is invalid, it returns an error message string. For example: def check_age(age): if age>30: return 'Too old' elif age<10: return 'Too

when the check passes, otherwise an error message will be returned: def check_age(p): # return None when the check passes, otherwise return the error ˓→message if p < 10: return 'Too young!!' if p > word!') # Show a PopUp popup('popup title', 'popup text content') # Show a notification message toast('New message ') For all output functions provided by PyWebIO, please refer to the pywebio.output module the input value is valid, it returns None. When the input value is invalid, it returns an error message string. For example: def check_age(age): if age>30: return 'Too old' elif age<10: return 'Too

when the check passes, otherwise an error message will be returned: def check_age(p): # return None when the check passes, otherwise return the error ˓→message if p < 10: return 'Too young!!' if p > word!') # Show a PopUp popup('popup title', 'popup text content') # Show a notification message toast('New message ') For all output functions provided by PyWebIO, please refer to the pywebio.output module the input value is valid, it returns None. When the input value is invalid, it returns an error message string. For example: def check_age(age): if age>30: return 'Too old' elif age<10: return 'Too

when the check passes, otherwise an error message will be returned: def check_age(p): # return None when the check passes, otherwise return the error ˓→message if p < 10: return 'Too young!!' if p > word!') # Show a PopUp popup('popup title', 'popup text content') # Show a notification message toast('New message ') For all output functions provided by PyWebIO, please refer to the pywebio.output module the input value is valid, it returns None. When the input value is invalid, it returns an error message string. For example: def check_age(age): if age>30: return 'Too old' elif age<10: return 'Too

when the check passes, otherwise an error message will be returned: def check_age(p): # return None when the check passes, otherwise return the error ˓→message if p < 10: return 'Too young!!' if p > word!') # Show a PopUp popup('popup title', 'popup text content') # Show a notification message toast('New message ') For all output functions provided by PyWebIO, please refer to the pywebio.output module the input value is valid, it returns None. When the input value is invalid, it returns an error message string. For example: def check_age(age): if age>30: return 'Too old' elif age<10: return 'Too

when the check passes, otherwise an error message will be returned: def check_age(p): # return None when the check passes, otherwise return the error ˓→message if p < 10: return 'Too young!!' if p > word!') # Show a PopUp popup('popup title', 'popup text content') # Show a notification message toast('New message ') For all output functions provided by PyWebIO, please refer to the pywebio.output module the input value is valid, it returns None. When the input value is invalid, it returns an error message string. For example: def check_age(age): if age>30: return 'Too old' elif age<10: return 'Too