Python 日期字符串 mm/dd/yyyy 转日期时间

Question

我必须编写一个程序，从雅虎财经获取股票并打印该网站的某些信息。其中一项数据是日期。我需要将日期(如 3/21/2012)转换为以下格式:2012 年 3 月 21 日。

这是我整个项目的代码。

def getStockData(company="GOOG"):

    baseurl ="http://quote.yahoo.com/d/quotes.csv?s={0}&f=sl1d1t1c1ohgvj1pp2owern&e=.csv"

    url = baseurl.format(company)
    conn = u.urlopen(url)
    content = conn.readlines()
    data = content[0].decode("utf-8")
    data = data.split(",")
    date = data[2][1:-1]
    date_new = datetime.strptime(date, "%m/%d/%Y").strftime("%B[0:3] %d, %Y")
    print("The last trade for",company, "was", data[1],"and the change was", data[4],"on", date_new)


company = input("What company would you like to look up?")
getStockData(company)


co = ["VOD.L", "AAPL", "YHOO", "S", "T"]
for company in co:
    getStockData(company)

Answer 1

您应该真正指定您的代码无法正常工作的原因(即，您得到了哪些您不期望的输出？您收到了什么错误消息(如果有的话)？)。但是，我怀疑您的问题出在这部分:

strftime('%B[0:3] %d, %Y')

因为 Python 不会按照您的想法尝试切片 '%B'。您应该使用 '%b'，即 as noted in the documentation for strftime() ，对应于区域设置缩写的月份名称。

<小时/>

编辑

这是一个功能齐全的脚本，基于您上面发布的内容以及我建议的修改:

import urllib2 as u
from datetime import datetime

def getStockData(company="GOOG"):
    baseurl ="http://quote.yahoo.com/d/quotes.csv?s={0}&f=sl1d1t1c1ohgvj1pp2owern&e=.csv"

    url = baseurl.format(company)
    conn = u.urlopen(url)
    content = conn.readlines()
    data = content[0].decode("utf-8")
    data = data.split(",")
    date = data[2][1:-1]
    date_new = datetime.strptime(date, "%m/%d/%Y").strftime("%b %d, %Y")
    print("The last trade for",company, "was", data[1],"and the change was", data[4],"on", date_new)

for company in ["VOD.L", "AAPL", "YHOO", "S", "T"]:
    getStockData(company)

该脚本的输出是:

The last trade for VOD.L was 170.00 and the change was -1.05 on Mar 06, 2012
The last trade for AAPL was 530.26 and the change was -2.90 on Mar 06, 2012
The last trade for YHOO was 14.415 and the change was -0.205 on Mar 06, 2012
The last trade for S was 2.39 and the change was -0.04 on Mar 06, 2012
The last trade for T was 30.725 and the change was -0.265 on Mar 06, 2012

无论如何，我在 Python 2.7.1 上运行它。我还使用了 from __future__ import print_function 行来使其与您似乎正在使用的 Python3 打印函数兼容。