python - 将python sql列表转换为字典

Question

如何转换

cursor.execute("SELECT strftime('%m.%d.%Y %H:%M:%S', timestamp, 'localtime'), temp FROM data WHERE timestamp>datetime('now','-1 hours')")
# fetch all or one we'll go for all.
results = cursor.fetchall()
for row in results[:-1]:
row=results[-1]
rowstr="['{0}',{1}]\n".format(str(row[0]),str(row[1]))
temp_chart_table+=rowstr

结果

['01.15.2015 21:38:52',21.812]

以以下形式进入字典输出:

[{timestamp:'01.15.2015 21:38:52',temp:21.812}]

编辑

这是我目前使用的 fetchone 示例，它工作正常:

def get_avg():

    conn=sqlite3.connect(dbname)
    curs=conn.cursor()
    curs.execute("SELECT ROUND(avg(temp), 2.2) FROM data WHERE timestamp>datetime('now','-1 hour') AND timestamp<=datetime('now')")
    rowavg=curs.fetchone()
    #print rowavg
    #rowstrmin=format(str(rowavg[0]))
    #return rowstrmin
    **d = [{"avg":rowavg[0]}]**
    return d

    conn.close()

#print get_avg()
schema = {"avg": ("number", "avg")}
data = get_avg()
# Loading it into gviz_api.DataTable
data_table = gviz_api.DataTable(schema)
data_table.LoadData(data)
json = data_table.ToJSon()
#print results

#print "Content-type: application/json\n\n"
print "Content-type: application/json"
print
print json

然后我进行 jQuery 调用并将其传递到 javascript 并在此处找到相关帮助 ajax json query directly to python generated html gets undefined

Answer 1

正如我所看到的，您正在使用 format 以字符串的形式写入。

来自 docs 的注释

it is not possible to use { and } as fill char while using the str.format() method

要让它看起来像一本你可以做的字典

"[{timestamp:'%s',temp:%s}]\n"%(str(row[0]),str(row[1]))

但是如果你想把它变成一个字典那么你将不得不做

row_dic = [{'timestamp':row[0],'temp':row[1]}]