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PythonCHBPythonCHB
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‎.buildinfo‎

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# Sphinx build info version 1
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# This file records the configuration used when building these files. When it is not found, a full rebuild will be done.
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config: 7c1e11b48ca765e2de4fd016241471d9
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tags: 645f666f9bcd5a90fca523b33c5a78b7

‎.nojekyll‎

Whitespace-only changes.

‎_downloads/002778a2a65b40093409693b6043a07d/roman1.py‎

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"""
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roman.py
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A Roman numeral to arabic numeral (and back!) converter
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complete with tests
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tests are expected to be able to be run with the pytest system
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"""
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def to_roman(n):
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'''convert an integer to Roman numeral'''
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pass
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## Tests for roman numeral conversion
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KNOWN_VALUES = ( (1, 'I'),
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(2, 'II'),
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(3, 'III'),
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(4, 'IV'),
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(5, 'V'),
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(6, 'VI'),
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(7, 'VII'),
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(8, 'VIII'),
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(9, 'IX'),
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(10, 'X'),
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(50, 'L'),
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(100, 'C'),
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(500, 'D'),
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(1000, 'M'),
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(31, 'XXXI'),
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(148, 'CXLVIII'),
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(294, 'CCXCIV'),
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(312, 'CCCXII'),
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(421, 'CDXXI'),
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(528, 'DXXVIII'),
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(621, 'DCXXI'),
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(782, 'DCCLXXXII'),
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(870, 'DCCCLXX'),
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(941, 'CMXLI'),
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(1043, 'MXLIII'),
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(1110, 'MCX'),
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(1226, 'MCCXXVI'),
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(1301, 'MCCCI'),
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(1485, 'MCDLXXXV'),
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(1509, 'MDIX'),
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(1607, 'MDCVII'),
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(1754, 'MDCCLIV'),
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(1832, 'MDCCCXXXII'),
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(1993, 'MCMXCIII'),
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(2074, 'MMLXXIV'),
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(2152, 'MMCLII'),
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(2212, 'MMCCXII'),
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(2343, 'MMCCCXLIII'),
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(2499, 'MMCDXCIX'),
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(2574, 'MMDLXXIV'),
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(2646, 'MMDCXLVI'),
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(2723, 'MMDCCXXIII'),
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(2892, 'MMDCCCXCII'),
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(2975, 'MMCMLXXV'),
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(3051, 'MMMLI'),
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(3185, 'MMMCLXXXV'),
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(3250, 'MMMCCL'),
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(3313, 'MMMCCCXIII'),
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(3408, 'MMMCDVIII'),
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(3501, 'MMMDI'),
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(3610, 'MMMDCX'),
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(3743, 'MMMDCCXLIII'),
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(3844, 'MMMDCCCXLIV'),
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(3888, 'MMMDCCCLXXXVIII'),
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(3940, 'MMMCMXL'),
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(3999, 'MMMCMXCIX'),
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)
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def test_to_roman_known_values():
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"""
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to_roman should give known result with known input
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"""
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for integer, numeral in KNOWN_VALUES:
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result = to_roman(integer)
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assert numeral == result
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‎_downloads/09156b87264df3eed45e647a1081ff51/quadratic.py‎

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#!/usr/bin/env python3
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"""
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A quaratic function evaluator
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used to demonstrate callable classes
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"""
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class Quadratic:
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"""
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Class to evaluate quadratic equations
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Each instance wil have a certain set of coefficients
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"""
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def __init__(self, A, B, C):
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self.A = A
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self.B = B
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self.C = C
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def __call__(self, x):
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return self.A * x**2 + self.B * x + self.C
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‎_downloads/1299d43327253c58b8a484d1185dc914/unicodify.py‎

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#!/usr/bin/env python
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'''
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Decorators to convert all arguments passed to a function or method to
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unicode or str, including default arguments
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From: http://axialcorps.com/2014/03/20/unicode-str/
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'''
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import sys
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import functools
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import inspect
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def _convert_arg(arg, from_, conv, enc):
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'''Safely convert unicode to string or string to unicode'''
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return getattr(arg, conv)(encoding=enc) if isinstance(arg, from_) else arg
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def _wrap_convert(from_type, fn, encoding=None):
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'''Decorate a function converting all str arguments to unicode or
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vice-versa'''
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conv = 'decode' if from_type is str else 'encode'
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encoding = encoding or sys.getdefaultencoding()
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# override string defaults using partial
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aspec, dflts = inspect.getargspec(fn), {}
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if aspec.defaults:
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for k,v in zip(aspec.args[-len(aspec.defaults):],aspec.defaults):
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dflts[k] = _convert_arg(v, from_type, conv, encoding)
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fn = functools.partial(fn, **dflts)
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@functools.wraps(fn.func if isinstance(fn, functools.partial) else fn)
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def converted(*args, **kwargs):
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args = [_convert_arg(a, from_type, conv, encoding) for a in args]
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for k,v in kwargs.iteritems():
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kwargs[k] = _convert_arg(v, from_type, conv, encoding)
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return fn(*args, **kwargs)
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return converted
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def unicodify(fn=None, encoding=None):
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'''Convert all str arguments to unicode'''
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if fn is None:
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return functools.partial(unicodify, encoding=encoding)
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return _wrap_convert(str, fn, encoding=encoding)
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def stringify(fn=None, encoding=None):
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'''Convert all unicode arguments to str'''
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if fn is None:
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return functools.partial(stringify, encoding=encoding)
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return _wrap_convert(unicode, fn, encoding=encoding)
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__all__ = ['unicodify', 'stringify']

‎_downloads/151bc0d618fe0bd8cac43e0b183fd66f/test_calculator.py‎

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import unittest
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import calculator_functions as calc
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def setUpModule():
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print("running setup module")
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class TestCalculatorFunctions(unittest.TestCase):
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def setUp(self):
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print("running setup")
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self.x = 2
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self.y = 3
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def tearDown(self):
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print("running teardown")
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def test_add(self):
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print("running test_add")
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self.assertEqual(calc.add(self.x, self.y), 5)
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def test_add2(self):
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print("running test_add2")
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self.assertEqual(calc.add(7, 8), 15)
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# class TestCalculatorFunctions2(unittest.TestCase):
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# def setUp(self):
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# self.x = 2
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# self.y = 3
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# def test_add(self):
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# self.assertEqual(calc.subtract(self.y, self.x), 1)
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if __name__ == "__main__":
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unittest.main()

‎_downloads/17291a22f70b7a2b8620b90132af747e/test_object_canvas.py‎

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#!/usr/bin/env python3
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"""
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test code for the object_canvas
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Note: Testing image generation is hard. So for now, this mostly just
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tests that the rendering function runs.
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And during development, you can look at the resulting files.
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One could store "properly" rendered results for future tests to
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check against.
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"""
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# import os
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import pathlib
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import object_canvas as oc
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SAVE_ALL=True # save all the temp files?
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def render_to_file(canvas, filename="test_image.png", save=False):
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"""
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utility to render a canvas to a file
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:param filename: name of file to render to it will be put in a test_images dir.
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:param remove=True: whether to remove the file after rendering.
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"""
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path = pathlib.Path("test_images")
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path.mkdir(exist_ok=True)
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path /= filename
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canvas.render(str(path))
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assert path.is_file()
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if not (SAVE_ALL or save):
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path.unlink()
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def test_init():
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canvas = oc.ObjectCanvas()
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assert canvas
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def test_backgound():
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canvas = oc.ObjectCanvas(background='blue')
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render_to_file(canvas, "blue_background.png")
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def test_polyline():
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"""
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can we draw a polyline?
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"""
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canvas = oc.ObjectCanvas()
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points = ((10, 10), # this should be a triangle
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(10, 400),
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(400, 10),
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(10, 10),
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)
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pl = oc.PolyLine(points)
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canvas.add_object(pl)
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render_to_file(canvas, "polyline.png")
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def test_circle():
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canvas = oc.ObjectCanvas()
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center = (100, 100)
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diameter = 75
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for line_width in range(1, 5):
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c = oc.Circle(center,
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diameter,
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line_color="red",
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fill_color="blue",
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line_width=line_width,
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)
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canvas.add_object(c)
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center = (center[0] + 50, center[0] + 50)
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render_to_file(canvas, "circle.png")
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‎_downloads/18b5bb39eb5cb68d9c0a0e9462e98b92/except_exercise.py‎

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#!/usr/bin/python
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"""
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An exercise in playing with Exceptions.
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Make lots of try/except blocks for fun and profit.
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Make sure to catch specifically the error you find, rather than all errors.
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"""
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from except_test import fun, more_fun, last_fun
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# Figure out what the exception is, catch it and while still
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# in that catch block, try again with the second item in the list
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first_try = ['spam', 'cheese', 'mr death']
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joke = fun(first_try[0])
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# Here is a try/except block. Add an else that prints not_joke
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try:
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not_joke = fun(first_try[2])
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except SyntaxError:
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print('Run Away!')
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# What did that do? You can think of else in this context, as well as in
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# loops as meaning: "else if nothing went wrong"
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# (no breaks in loops, no exceptions in try blocks)
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# Figure out what the exception is, catch it and in that same block
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#
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# try calling the more_fun function with the 2nd language in the list,
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# again assigning it to more_joke.
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#
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# If there are no exceptions, call the more_fun function with the last
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# language in the list
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# Finally, while still in the try/except block and regardless of whether
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# there were any exceptions, call the function last_fun with no
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# parameters. (pun intended)
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langs = ['java', 'c', 'python']
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more_joke = more_fun(langs[0])

‎_downloads/19fa18763a1e251e2664f14fd8609477/students.txt‎

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Name: Nickname, languages
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Swift, Taylor: python, java, perl
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Swift, Samuel: Sam
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Brooks, Garth: fortran, java, matlab, bash
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Buble, Michael: python, powershell
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Stefani, Gwen: c#, javascript, python, typescript
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Gaye, Marvin: c++, java
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Jagger, Michael: Mick, shell, python
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Lennon, John:
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Nelson, Willy: python, java
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McCartney, Paul: nothing
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Dylan, Bob: java, python, ruby
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Springsteen, Bruce: c++, python
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Jackson, Michael: java, c#, python
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Berry, Charles: Chuck c++, matlab,
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Wonder, Steven: Stevie, c, perl, java, erlang, python
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Nicks, Stevie: java, perl, c#, c++, python
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Turner, Tina: bash, python
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Plant, Robert: Bob, bash, python, ansible
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Townshend, Peter: Pete, c#, powershell, python, sql
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Moon, Keith: python, r, visualbasic
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Mitchell, Joni: php, mysql, python
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Ramone, John: Johnny, rex, db
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King, Carol: r
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Waters, Muddy: perl, python
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Star, Richard: Ringo, shell, python, vb
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Smith, Patricia: Patti, python
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Morrison, Jim: fortran, perl, sql, python
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Marley, Robert: Bob, c, c++, lisp
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Simon, Paul: bash, python, sql
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Charles, Ray: Chuck, java, python

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