return None 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! guide 11 PyWebIO, Release 1.3.3 def check_form(data): # input group validation: return (input name, error msg) when ˓→validation fail if len(data['name']) > 6: return ('name', 'Name too long!') if data['age'] not allowed: import pywebio from pywebio.input import input port = input('Input port number:') # error pywebio.start_server(my_task_func, port=int(port)) Script mode 20 Chapter 4. Documentation PyWebIO

return None 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! guide 11 PyWebIO, Release 1.3.1 def check_form(data): # input group validation: return (input name, error msg) when ˓→validation fail if len(data['name']) > 6: return ('name', 'Name too long!') if data['age'] not allowed: import pywebio from pywebio.input import input port = input('Input port number:') # error pywebio.start_server(my_task_func, port=int(port)) Script mode 20 Chapter 4. Documentation PyWebIO

return None 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! guide 11 PyWebIO, Release 1.3.0 def check_form(data): # input group validation: return (input name, error msg) when ˓→validation fail if len(data['name']) > 6: return ('name', 'Name too long!') if data['age'] not allowed: import pywebio from pywebio.input import input port = input('Input port number:') # error pywebio.start_server(my_task_func, port=int(port)) Script mode 20 Chapter 4. Documentation PyWebIO

return None 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! guide 11 PyWebIO, Release 1.3.2 def check_form(data): # input group validation: return (input name, error msg) when ˓→validation fail if len(data['name']) > 6: return ('name', 'Name too long!') if data['age'] not allowed: import pywebio from pywebio.input import input port = input('Input port number:') # error pywebio.start_server(my_task_func, port=int(port)) Script mode 20 Chapter 4. Documentation PyWebIO

return None 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! function, which accepts the entire form data as parameter: def check_form(data): # return (input name, error msg) when validation fail if len(data['name']) > 6: return ('name', 'Name too long!') if data['age'] not allowed: import pywebio from pywebio.input import input port = input('Input port number:') # error pywebio.start_server(my_task_func, port=int(port)) Script mode If you never call start_server()

return None 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! function, which accepts the entire form data as parameter: def check_form(data): # return (input name, error msg) when validation fail if len(data['name']) > 6: return ('name', 'Name too long!') if data['age'] not allowed: import pywebio from pywebio.input import input port = input('Input port number:') # error pywebio.start_server(my_task_func, port=int(port)) Script mode If you never call start_server()

return None 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! function, which accepts the entire form data as parameter: def check_form(data): # return (input name, error msg) when validation fail if len(data['name']) > 6: return ('name', 'Name too long!') if data['age'] not allowed: import pywebio from pywebio.input import input port = input('Input port number:') # error pywebio.start_server(my_task_func, port=int(port)) Script mode If you never call start_server()

return None 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! function, which accepts the entire form data as parameter: def check_form(data): # return (input name, error msg) when validation fail if len(data['name']) > 6: return ('name', 'Name too long!') if data['age'] not allowed: import pywebio from pywebio.input import input port = input('Input port number:') # error pywebio.start_server(my_task_func, port=int(port)) Script mode If you never call start_server()

return None 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! function, which accepts the entire form data as parameter: def check_form(data): # return (input name, error msg) when validation fail if len(data['name']) > 6: return ('name', 'Name too long!') if data['age'] not allowed: import pywebio from pywebio.input import input port = input('Input port number:') # error pywebio.start_server(my_task_func, port=int(port)) Script mode If you never call start_server()

return None 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! function, which accepts the entire form data as parameter: def check_form(data): # return (input name, error msg) when validation fail if len(data['name']) > 6: return ('name', 'Name too long!') if data['age'] not allowed: import pywebio from pywebio.input import input port = input('Input port number:') # error pywebio.start_server(my_task_func, port=int(port)) Script mode If you never call start_server()