创建一个python脚本，该脚本将读取csv文件并使用该输入来从finviz.com抓取数据然后将数据导出到csv文件

Question

I'm trying to pull in a list of stocks from a csv file, upload each stock ticker into finviz.com, and export the data to csv file. I'm new to Python programing but I know this will help me and others. This is what I got so far.

    import csv
import urllib.request
from bs4 import BeautifulSoup

with open('shortlist.csv', 'r') as csvfile:
    reader = csv.reader(csvfile, delimiter=',')
    name = None
    for row in reader:
        if row[0]:
            name = row[0]
        print(name)
write_header = True

sauce = print(name)
soup = BeautifulSoup(sauce.text, 'html.parser')

print(soup.title.text)

symbols = name
""""
print(symbols)
"""
URL_BASE = "https://finviz.com/quote.ashx?t="

with open('output.csv', 'w', newline='') as file:
    writer = csv.writer(file)

    for ticker in symbols:
        URL = URL_BASE + ticker
        try:
            fpage = urllib.request.urlopen(URL)
            fsoup = BeautifulSoup(fpage, 'html.parser')

            if write_header:
                # note the change
                writer.writerow(['ticker'] + list(map(lambda e: e.text, fsoup.find_all('td', {'class': 'snapshot-td2-cp'}))))
                write_header = False

            # note the change
            writer.writerow([ticker] + list(map(lambda e: e.text, fsoup.find_all('td', {'class': 'snapshot-td2'}))))
        except urllib.request.HTTPError:
            print("{} - not found".format(URL))

I'm missing the output on the csv file "output.csv". I'm only seeing the data from my input csv file "shortlist". The tie or link is not correctly linked.I've spent a couple of weeks researching/working on how to do this. You're help is greatly appreciated.

Answer 1

import csv
import urllib.request
from bs4 import BeautifulSoup

with open('shortlist.csv', 'r') as csvfile:
    reader = csv.reader(csvfile, delimiter=',')
    name = None
    for row in reader:
        if row[0]:
            name = row[0]
        print(name)
write_header = True

#sauce = print(name)
#soup = BeautifulSoup(sauce.text, 'html.parser')

#print(soup.title.text)

symbols = name
""""
print(symbols)
"""
URL_BASE = "https://finviz.com/quote.ashx?t="

with open('output.csv', 'w', newline='') as file:
    writer = csv.writer(file)

    for ticker in symbols:
        URL = URL_BASE + ticker
        try:
            fpage = urllib.request.urlopen(URL)
            fsoup = BeautifulSoup(fpage, 'html.parser')

            if write_header:
                # note the change
                writer.writerow(['ticker'] + list(map(lambda e: e.text, fsoup.find_all('td', {'class': 'snapshot-td2-cp'}))))
                write_header = False

            # note the change
            writer.writerow([ticker] + list(map(lambda e: e.text, fsoup.find_all('td', {'class': 'snapshot-td2'}))))
        except urllib.request.HTTPError:

This is the output: enter image description here