大家好!我正在尝试从网站上抓取数据并附加任何尚未复制到.csv文件的条目,但我似乎无法正确写入。
url = 'www.website.com'
def getInfo():
global oldMaxValue, oldMaxRow, newInfo
newInfo = 0
with open("file.csv", "a") as f:
data = requests.get(url)
text = data.text
newRows = [line.split(',') for line in text.split("\n") if line]
newMaxValue = max(row[0] for row in newRows)
for i in newRows:
if int(i[0]) > int(oldMaxValue):
f.write(str(i))
oldMaxValue = newMaxValue
非常感谢任何指导。非常感谢! :)
答案 0 :(得分:1)
使用csv模块。这是将单行附加到现有文件的示例:
import csv
f = file("file.csv", 'a')
csv_writer = csv.writer(f)
my_record = ["This", "is", "a", "row", "of", "data"]
csv_writer.writerow(my_record)