Fix #3907
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@ -79,7 +79,7 @@ class ExchangeBase(PrintError):
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return h, timestamp
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def get_historical_rates_safe(self, ccy, cache_dir):
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h, timestamp = self.read_historical_rates()
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h, timestamp = self.read_historical_rates(ccy, cache_dir)
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if h is None or time.time() - timestamp < 24*3600:
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try:
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self.print_error("requesting fx history for", ccy)
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@ -89,6 +89,7 @@ class ExchangeBase(PrintError):
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except BaseException as e:
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self.print_error("failed fx history:", e)
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return
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filename = os.path.join(cache_dir, self.name() + '_' + ccy)
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with open(filename, 'w') as f:
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f.write(json.dumps(h))
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self.history[ccy] = h
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