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fix UnboundLocalError cache_file referenced before assignment (#102)
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@ -45,9 +45,9 @@ class TxApi(object):
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j = r.json()
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except:
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raise Exception('URL error: %s' % url)
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if cache_file:
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if cache_dir and cache_file:
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try: # saving into cache
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json.dump(j, open(cachefile, 'w'))
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json.dump(j, open(cache_file, 'w'))
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except:
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pass
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return j
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