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Python Scripts
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Persistent Python Scripts
Examples:
>>> from cybertools.pyscript.tests import Root
>>> from cybertools.pyscript.script import PythonScript
>>> pp = PythonScript()
>>> pp.__parent__ = Root()
>>> pp.__name__ = 'pp'
>>> request = None
Test that can produce the correct filename
>>> pp._PythonScript__filename()
u'/pp'
A simple test that checks that any lone-standing triple-quotes are
being printed.
>>> pp.setSource(u"'''<html>...</html>'''\nreturn printed")
>>> pp(request)
u'<html>...</html>\n'
Make sure that strings with prefixes work.
>>> pp.setSource(ur"ur'''test\\r'''" + "\nreturn printed")
>>> pp(request)
u'test\\r\n'
Make sure that Windows (\r\n) line ends also work.
>>> pp.setSource(u"if 1 == 1:\r\n\r\n '''<html>...</html>'''\nreturn printed")
>>> pp(request)
u'<html>...</html>\n'
Make sure that unicode strings work as expected.
>>> pp.setSource(u"u'''\u0442\u0435\u0441\u0442'''\nreturn printed")
>>> pp(request)
u'\u0442\u0435\u0441\u0442\n'
Make sure that multi-line strings work.
>>> pp.setSource(u"u'''test\ntest\ntest'''\nreturn printed")
>>> pp(request)
u'test\n...test\n...test\n'
Here you can see a simple Python command...
>>> pp.setSource(u"print u'<html>...</html>'\nreturn printed")
>>> pp(request)
u'<html>...</html>\n'
... and here a triple quote with some variable replacement.
>>> pp.setSource(u"'''<html>%s</html>''' %x\nreturn printed")
>>> pp(request, x='test')
u'<html>test</html>\n'
Make sure that the context of the page is available.
>>> pp.setSource(u"'''<html>%s</html>''' %context.__name__\nreturn printed")
>>> pp(request)
u'<html>root</html>\n'
Make sure that faulty syntax is interpreted correctly.
Note: We cannot just print the error directly, since there is a
'bug' in the Linux version of Python that does not display the filename
of the source correctly. So we construct an information string by hand.
>>> def print_err(err):
... print ('%s, %s, line %i, offset %i'
... % (err.msg, err.filename, err.lineno, err.offset))
...
>>> try:
... pp.setSource(u"'''<html>...</html>") #'''"
... except SyntaxError, err:
... print_err(err)
EOF while scanning triple-quoted string literal, /pp, line 4, offset 48
>>> try:
... pp.setSource(u"prin 'hello'")
... except SyntaxError, err:
... print_err(err)
invalid syntax, /pp, line 3, offset 16
