Examples:

>>> PlainText.to_python('_this9_')
'_this9_'
>>> PlainText.from_python('  this  ')
'  this  '
>>> PlainText(accept_python=False).from_python('  this  ')
Traceback (most recent call last):
  ...
Invalid: Enter only letters, numbers, or _ (underscore)
>>> PlainText(strip=True).to_python('  this  ')
'this'
>>> PlainText(strip=True).from_python('  this  ')
'this'

Messages

badType:

The input must be a string (not a %(type)s: %(value)r)

empty:

Please enter a value

invalid:

Enter only letters, numbers, or _ (underscore)

noneType:

The input must be a string (not None)