Python 2.7 日期格式无法转换为数据格式
我正在尝试创建一个应用程序,它使用python从网站中提取信息,并且使用Python 2.7 日期格式无法转换为数据格式,python-2.7,python-3.x,Python 2.7,Python 3.x,我正在尝试创建一个应用程序,它使用python从网站中提取信息,并且使用datetime格式 def constructYFURL(ticker,start_date,end_date,freq): start_date = datetime.strptime(start_date,"%Y-%m-%d").date() end_date = datetime.strptime(end_date,"%Y-%m-%d").date() s=ticker.replace("^
datetime
格式
def constructYFURL(ticker,start_date,end_date,freq):
start_date = datetime.strptime(start_date,"%Y-%m-%d").date()
end_date = datetime.strptime(end_date,"%Y-%m-%d").date()
s=ticker.replace("^","%5E")
if start_date.month-1<10:
a="0"+str(start_date.month-1)
else:
a=str(start_date.month-1)
# Also the month always has 2 digits
b=str(start_date.day)
c=str(start_date.year)
if end_date.month - 1 < 10:
d = "0" + str(end_date.month - 1)
else:
d = str(end_date.month - 1)
e=str(end_date.day)
f=str(end_date.year)
`enter code here`g=freq
yfURL = "http://real-chart.finance.yahoo.com/table.csv? s="+s+"&a="+a+"&b="+b+"&c="+c+"&d="+d+"&e="+e+"&f="+f+"&g="+g+"&ignore=.csv"
return yfURL
from download import constructYFURL
ticker = "AAPL"
start_date = "2016-01-01"
end_date = " 2017-03-06"
freq = "d"
yfURL = constructYFURL(ticker,start_date,end_date,freq)
print yfURL
def constructyfull(股票代码、开始日期、结束日期、频率):
开始日期=datetime.strtime(开始日期,%Y-%m-%d”).date()
end_date=datetime.strtime(end_date,“%Y-%m-%d”).date()
s=股票代码。替换(“^”和“%5E”)
如果开始日期为第1个月则在以下位置有额外的前导空格:
end_date = " 2017-03-06"
删除它,你得到的错误就会消失,程序就会运行
格式更好的代码:
def constructYFURL(ticker,start_date,end_date,freq):
start_date = datetime.strptime(start_date,"%Y-%m-%d").date()
end_date = datetime.strptime(end_date,"%Y-%m-%d").date()
s=ticker.replace("^","%5E")
if start_date.month-1<10:
a="0"+str(start_date.month-1)
else:
a=str(start_date.month-1)
# Also the month always has 2 digits
b=str(start_date.day)
c=str(start_date.year)
if end_date.month - 1 < 10:
d = "0" + str(end_date.month - 1)
else:
d = str(end_date.month - 1)
e=str(end_date.day)
f=str(end_date.year)
g=freq
yfURL = "http://real-chart.finance.yahoo.com/table.csv? s="+s+"&a="+a+"&b="+b+"&c="+c+"&d="+d+"&e="+e+"&f="+f+"&g="+g+"&ignore=.csv"
return yfURL
ticker = "AAPL"
start_date = "2016-01-01"
end_date = "2017-03-06"
freq = "d"
yfURL = constructYFURL(ticker,start_date,end_date,freq)
print yfURL
def constructyfull(股票代码、开始日期、结束日期、频率):
开始日期=datetime.strtime(开始日期,%Y-%m-%d”).date()
end_date=datetime.strtime(end_date,“%Y-%m-%d”).date()
s=股票代码。替换(“^”和“%5E”)
如果开始日期为第1个月