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fix rename backup history file #30 #32

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fix rename backup history file #30 #32

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4 changes: 4 additions & 0 deletions core/__init__.py
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Original file line number Diff line number Diff line change
Expand Up @@ -410,5 +410,9 @@ def write_json_file(data, path):
path_backup = path + '.bkp'
with open(path_temp, 'w') as f:
f.write(json.dumps(data)) # write to temp file to ensure no data loss if exception raised here
try:
os.remove(path_backup)
except OSError:
pass
os.rename(path, path_backup) # create backup file in case rename is unsuccessful
os.rename(path_temp, path)