在Python中的表格格式文本(Formatting Text in a Table in Pyth

2019-08-31 14:03发布

我在创建表是动态调整到不同的结果的问题。

我写了一个屏幕刮刀从拉股票http://finance.yahoo.com和打印公司名称,它的象征,它是当前的股票价格。

然而,输出如下所示:

 Microsoft Corporation MSFT 29.76

 Apple Inc. AAPL 396.77

 SPDR S&P 500 SPY 155.25

 Google Inc. GOOG 787.76

我希望它看起来像

Microsoft Corporation        MSFT      29.76

Apple Inc.                   AAPL      396.77

SPDR S&P 500                 SPY       155.25

Google Inc.                  GOOG      787.76

我刚开始使用Python昨天工作呢和我使用3.3.1

我当前的代码如下:

import re
import urllib.request
import cgi
from bs4 import BeautifulSoup

price = [0,0,0,0]
namesList = ["string1", "string2", "string3", "string4"]
stocksList = ["msft","aapl","spy","goog"]

def HTML():
    i = 0
    while i < len(stocksList):
        htmlPull = urllib.request.urlopen("http://finance.yahoo.com/q?s="+stocksList[i]+"&ql=1")
        htmlPull = htmlPull.read().decode('utf-8')
        regex = '<span id="yfs_l84_'+stocksList[i]+'">(.+?)</span>'
        pattern = re.compile(regex)
        price[i] = re.findall(pattern,htmlPull)
        htmlParse = BeautifulSoup(htmlPull)
        title = htmlParse.title.contents
        namesList[i] = title        
        i+=1

formatPrice(price)
formatStock(namesList)
formatOutput(namesList, stocksList, price)

def formatPrice(price):
    k=0
    while k < len(price):
        cleaner = str(price[k])
        cleaner = cleaner.replace("[","")
        cleaner = cleaner.replace("]","")
        cleaner = cleaner.replace("'","")
        price[k] = float(cleaner)
        k+=1

def formatStock(namesList):
    k = 0
    while k <len(namesList):
        capital = stocksList[k]
        capital = capital.upper()
        cleaner = str(namesList[k])
        cleaner = cleaner.replace("Summary for ", "")
        cleaner = cleaner.replace(":"," ")
        cleaner = cleaner.replace("- Yahoo! Finance'","")
        cleaner = cleaner.replace("['","")
        cleaner = cleaner.replace("]","")
        cleaner = cleaner.replace(";","")
        cleaner = cleaner.replace(capital, "")
        namesList[k] = cleaner;
        k+=1

    def formatOutput(namesList, stocksList, price):
        i = 0
        while i < len(price):
        capital = stocksList[i]
        capital = capital.upper()
        print(namesList[i],capital, price[i])
        print("")
        i+=1
HTML()

已经尝试打印({0},{1},{2} .format(namesList,资本,价格[1])),不同类型的{:<16}的变化等,这似乎只影响一个线和我“M好一会才想到在列的条款,或表,或可能的空间一定量的文本和空格应该填写。 我不知道确切的解决方案是在这里什么,所以我要问你所有的:)

你可以通过我的代码告诉,我很新的节目,所以如果有一个更好的方法在此代码做任何事情,我很乐意听校正,建议和意见。

Answer 1:

你想设置基于列中最长项的宽度。

在Python中,您使用max找到最大的一些组的东西。 因此,外循环,你可以这样做:

names_width = max(len(name) for name in namesList)
stock_width = max(len(stock) for stock in stockList)

然后,格式化每一行像你说你尝试:

print({0:{3}}  {1:{4}}  {2}.format(namesList[i],
                                   capital,
                                   price[i],
                                   names_width,
                                   stock_width))


文章来源: Formatting Text in a Table in Python