add lock to storage.write
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@ -139,6 +139,9 @@ class WalletStorage(PrintError):
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self.data.pop(key)
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def write(self):
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with self.lock: self._write()
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def _write(self):
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if threading.currentThread().isDaemon():
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self.print_error('warning: daemon thread cannot write wallet')
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return
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