csv

import csv

with open('some.csv', 'r') as f:
reader = csv.reader(f)
for row in reader:
print(row)

data = [
('Finance Mic', 'Finance Name'),
('SS', '上海证券交易所'),
('SZ', '深圳证券交易所'),
('CCFX', '中国金融期货交易所')
]

with open('some.csv', 'w', newline='') as f:
writer = csv.writer(f)

for item in data:
writer.writerow(item)

# csv格式
# '1,2,3\n4,5,6\n'

def market_list_to_csv(data):
csv = ''
csv = '%s%s,%s\n' % (csv, 'finance_mic', 'finance_name')
for item in data:
csv = '%s%s,%s\n' % (csv, item.get('finance_mic'), item.get('finance_name'))
return csv

market_list_data = {
"data": [
{
"finance_mic": "SS",
"finance_name": "上海证券交易所"
},
{
"finance_mic": "SZ",
"finance_name": "深圳证券交易所"
},
{
"finance_mic": "CCFX",
"finance_name": "中国金融期货交易所"
}
]
}

#print(market_list_to_csv(market_list_data.get('data')))

# ?
def real_to_csv(data):
csv = ''
csv = '%s%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s\n' % (csv,
'en_prod_code',
'data_timestamp',
'shares_per_hand',
'open_px',
'high_px',
'low_px',
'last_px',
'business_amount',
'business_balance',
'offer_grp',
'bid_grp')

for k,v in data.items():
if not k is 'fields':
csv = '%s%s,' % (csv, k)
v.pop()
v.pop()
csv = csv + '%d,%d,%d,%d,%d,%d,%d,%d\n' % tuple(v)

return csv

real_data = {
"data": {
"snapshot": {
"fields": [
"data_timestamp",
"shares_per_hand",
"open_px",
"high_px",
"low_px",
"last_px",
"business_amount",
"business_balance",
"offer_grp",
"bid_grp"
],
"600570.SS": [
150305133,
100,
53980,
56000,
52510,
54950,
14465811,
788995643,
"54850,9887,0,54860,1500,0,54900,13300,0,54950,10000,0,54990,800,0,",
"54820,8000,0,54810,2100,0,54800,202900,0,54770,100,0,54720,1200,0,"
],
"000001.SZ": [
153229327,
100,
15560,
15830,
15300,
15480,
170012067,
2634796408,
"15490,93700,0,15500,260609,0,15510,69996,0,15520,87008,0,15530,71400,0,",
"15480,438292,0,15470,149000,0,15460,411400,0,15450,414573,0,15440,303733,0,"
]
}
}
}

print(real_to_csv(real_data.get('data').get('snapshot')))