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Add change and percentage in realtime #108

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Add change and percentage in realtime #108

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14 changes: 14 additions & 0 deletions twstock/realtime.py
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Original file line number Diff line number Diff line change
Expand Up @@ -40,6 +40,17 @@ def _split_best(d):
return d.strip('_').split('_')
return d

# Process change value and percentage
def _get_change(v1, v2):
try:
v1, v2 = float(v1), float(v2)
change = '{:+.4f}'.format(v2 - v1)
change_percentage = '{:+.4f}'.format((v2 - v1) / v1 * 100)
return (change, change_percentage)
except:
return ('-', '-')


# Realtime information
result['realtime']['latest_trade_price'] = data.get('z', None)
result['realtime']['trade_volume'] = data.get('tv', None)
Expand All @@ -51,6 +62,9 @@ def _split_best(d):
result['realtime']['open'] = data.get('o', None)
result['realtime']['high'] = data.get('h', None)
result['realtime']['low'] = data.get('l', None)
result['realtime']['yesterday_close_price'] = data.get('y', None)
result['realtime']['change'], result['realtime']['change_percentage'] = _get_change(
data.get('y', None), data.get('z', None))

# Success fetching
result['success'] = True
Expand Down