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"""Quartz-powered vector machine

A derivative of https://www.nodebox.net/code/index.php/Home by Frederik De Bleser & Tom De Smedt

MIT Licensed (see README file for details)

"""

import sys, re, os

__version__ = '1.0.0'

__author__ = 'Christian Swinehart'

__email__ = 'drafting@samizdat.co'

__credits__ = 'Frederik De Bleser, Tom De Smedt, Just van Rossum, & Marcos Ojeda'

__license__ = 'MIT'

INTERNAL = '_p_l_o_t_d_e_v_i_c_e_' # the global non-conflicting token (fingers crossed)

class DeviceError(Exception): pass # please excuse our technical difficulties

class Halted(Exception): pass # special exception to cleanly exit animations

# note whether the module is being used within the .app, via console.py, or from the repl

called_from = getattr(sys.modules['__main__'], '__file__', '<interactive>')

in_app = called_from.endswith('plotdevice-app.py')

in_setup = called_from.endswith('setup.py')

# don't mess with sys.path during builds

if not in_setup:

# add the shared directory (for Libraries) to the path

sys.path.append(os.path.join(os.getenv('HOME'), 'Library', 'Application Support', 'PlotDevice'))

# use the bundled copy of PyObjC rather than the system version

from .run import objc

# print python exceptions to the console rather than silently failing

objc.setVerbose(True)

# populate the namespace (or don't) depending on the context

if in_app or in_setup:

# if a script imports * from within the app, nothing should be (re-)added to the

# global namespace. we'll let the Sandbox handle populating the namespace instead.

__all__ = []

else:

# if imported from an external module, set up a drawing environment in __all__.

# (note that since this happens at the module level, the canvas will be shared

# among all the files in a given process that `import *`).

# create a global canvas and graphics context for the draw functions to operate on

from .context import Context

ctx = Context()

# set up the standard plotdevice global namespace by exposing the module-level

# context/canvas's internal ns

globals().update(ctx._ns)

__all__ = list(ctx._ns.keys())

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