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"""This is meant to be run from the IPython prompt:
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%run demo-exercizer.py
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It will create demo objects of the example that is embedded in demo.py in a
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number of ways and allow you to see how they work, just follow the printed
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directions."""
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#-----------------------------------------------------------------------------
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# Imports
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#-----------------------------------------------------------------------------
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# From std lib
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import StringIO
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import os
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import shutil
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import tempfile
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# From IPython
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from IPython.demo import (Demo, IPythonDemo, LineDemo, IPythonLineDemo,
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ClearDemo, ClearIPDemo)
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#-----------------------------------------------------------------------------
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# Demo code
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#-----------------------------------------------------------------------------
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example1 = """
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'''A simple interactive demo to illustrate the use of IPython's Demo class.'''
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print 'Hello, welcome to an interactive IPython demo.'
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# The mark below defines a block boundary, which is a point where IPython will
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# stop execution and return to the interactive prompt. The dashes are actually
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# optional and used only as a visual aid to clearly separate blocks while
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# editing the demo code.
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# <demo> stop
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x = 1
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y = 2
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# <demo> stop
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# the mark below makes this block as silent
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# <demo> silent
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print 'This is a silent block, which gets executed but not printed.'
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# <demo> stop
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# <demo> auto
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print 'This is an automatic block.'
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print 'It is executed without asking for confirmation, but printed.'
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z = x+y
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print 'z=',x
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# <demo> stop
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# This is just another normal block.
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print 'z is now:', z
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print 'bye!'
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"""
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fp = tempfile.mkdtemp(prefix = 'DemoTmp')
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fd, filename = tempfile.mkstemp(prefix = 'demoExample1File', suffix = '.py',
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dir = fp)
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f = os.fdopen(fd, 'wt')
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f.write(example1)
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f.close()
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my_d = Demo(filename)
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my_cd = ClearDemo(filename)
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fobj = StringIO.StringIO(example1)
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str_d = Demo(fobj, title='via stringio')
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print '''
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The example that is embeded in demo.py file has been used to create
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the following 3 demos, and should now be available to use:
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my_d() -- created from a file
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my_cd() -- created from a file, a ClearDemo
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str_d() -- same as above, but created via a StringIO object
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Call by typing their name, (with parentheses), at the
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ipython prompt, interact with the block, then call again
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to run the next block.
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'''
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