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scripts/spyder

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#!/usr/bin/env python

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from spyderlib import spyder

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spyder.main()

 

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import atexit

 

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import random

 

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import time

 

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from spyderlib.baseconfig import get_conf_path

 

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from spyderlib.config import CONF

 

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from spyderlib.utils.external import lockfile

 

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if CONF.get('main', 'single_instance'):

 

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    # Minimal delay (0.1-0.2 secs) to avoid that several

 

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    # instances started at the same time step in their

 

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    # own foots while trying to create the lock file

 

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    time.sleep(random.randrange(1000, 2000, 90)/10000.)

 

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    # Lock file creation

 

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    lockf = get_conf_path('spyder.lock')

 

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    lock = lockfile.FilesystemLock(lockf)

 

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    # lock.lock() tries to lock spyder.lock. If it fails,

 

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    # it returns False and so we try to start the client

 

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    if not lock.lock():

 

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        from spyderlib import client

 

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        client.main()

 

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    else:

 

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        atexit.register(lock.unlock)

 

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        from spyderlib import spyder

 

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        spyder.main()

 

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else:

 

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    from spyderlib import spyder

 

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    spyder.main()

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