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close #4125

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perhaps not proper fix but at least more descriptive exception text
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SomberNight 2018-03-19 01:26:57 +01:00
parent 36d52dfd5a
commit 5fef1e7980
1 changed files with 4 additions and 0 deletions
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4
lib/blockchain.py
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@ -255,6 +255,10 @@ class Blockchain(util.PrintError):
with open(name, 'rb') as f: with open(name, 'rb') as f:
f.seek(delta * 80) f.seek(delta * 80)
h = f.read(80) h = f.read(80)
elif not os.path.exists(util.get_headers_dir(self.config)):
raise Exception('Electrum datadir does not exist. Was it deleted while running?')
else:
raise Exception('Cannot find headers file but datadir is there. Should be at {}'.format(name))
if h == bytes([0])*80: if h == bytes([0])*80:
return None return None
return deserialize_header(h, height) return deserialize_header(h, height)