根據關鍵字搜索列表到 append 特定列表內容

Question

語境

我有一個從這個網站上抓取的鏈接列表： https://www.ons.gov.uk/economy/economicoutputandproductivity/output/datasets/economicactivityfasterindicatorsuk

此鏈接列表如下所示；

['https://twitter.com/ONS',
 'https://www.ons.gov.uk/file?uri=%2feconomy%2feconomicoutputandproductivity%2foutput%2fdatasets%2feconomicactivityfasterindicatorsuk%2fdecember2019/dataset1.xlsx',
 'https://www.facebook.com/ONS',
 'https://www.ons.gov.uk/peoplepopulationandcommunity/leisureandtourism',
 'https://www.ons.gov.uk/businessindustryandtrade/manufacturingandproductionindustry',
 'https://www.ons.gov.uk/file?uri=%2feconomy%2feconomicoutputandproductivity%2foutput%2fdatasets%2feconomicactivityfasterindicatorsuk%2ffebruary2020roadsdata/roadstables.xlsx',
 'https://www.ons.gov.uk/file?uri=%2feconomy%2feconomicoutputandproductivity%2foutput%2fdatasets%2feconomicactivityfasterindicatorsuk%2fjuly2019/economicactivityfasterindicatorsukjuly2019dataset.xlsx',
 'https://www.ons.gov.uk/file?uri=%2feconomy%2feconomicoutputandproductivity%2foutput%2fdatasets%2feconomicactivityfasterindicatorsuk%2fjanuary2020roadsdata/roadstables.xlsx'...

我現在想對他們使用氦/硒到 go 並將它們打印出來。 只有鏈接列表包含我不需要的鏈接和我需要下載的 excel 文檔的組合。 我希望能夠 append 只是包含 xlsx 的鏈接。

我嘗試了這個解決方案，但沒有奏效。 我也嘗試了.remove function 但這更耗時。 我還嘗試通過切片來整理鏈接列表，但這又很耗時。

問題

有沒有更簡單的方法可以在指向它們的鏈接列表中找到一個字符串，允許我將 append 轉到一個列表並通過 selenium 循環遍歷它們（我可以做后者，只需要附加幫助）。

Answer 1

使用列表理解。

linklist = ['https://twitter.com/ONS',
 'https://www.ons.gov.uk/file?uri=%2feconomy%2feconomicoutputandproductivity%2foutput%2fdatasets%2feconomicactivityfasterindicatorsuk%2fdecember2019/dataset1.xlsx',
 'https://www.facebook.com/ONS',
 'https://www.ons.gov.uk/peoplepopulationandcommunity/leisureandtourism',
 'https://www.ons.gov.uk/businessindustryandtrade/manufacturingandproductionindustry',
 'https://www.ons.gov.uk/file?uri=%2feconomy%2feconomicoutputandproductivity%2foutput%2fdatasets%2feconomicactivityfasterindicatorsuk%2ffebruary2020roadsdata/roadstables.xlsx',
 'https://www.ons.gov.uk/file?uri=%2feconomy%2feconomicoutputandproductivity%2foutput%2fdatasets%2feconomicactivityfasterindicatorsuk%2fjuly2019/economicactivityfasterindicatorsukjuly2019dataset.xlsx',
 'https://www.ons.gov.uk/file?uri=%2feconomy%2feconomicoutputandproductivity%2foutput%2fdatasets%2feconomicactivityfasterindicatorsuk%2fjanuary2020roadsdata/roadstables.xlsx']

relevant_links = [link for link in linklist if ".xlsx" in link]

將 output

['https://www.ons.gov.uk/file?uri=%2feconomy%2feconomicoutputandproductivity%2foutput%2fdatasets%2feconomicactivityfasterindicatorsuk%2fdecember2019/dataset1.xlsx', 'https://www.ons.gov.uk/file?uri=%2feconomy%2feconomicoutputandproductivity%2foutput%2fdatasets%2feconomicactivityfasterindicatorsuk%2ffebruary2020roadsdata/roadstables.xlsx', 'https://www.ons.gov.uk/file?uri=%2feconomy%2feconomicoutputandproductivity%2foutput%2fdatasets%2feconomicactivityfasterindicatorsuk%2fjuly2019/economicactivityfasterindicatorsukjuly2019dataset.xlsx', 'https://www.ons.gov.uk/file?uri=%2feconomy%2feconomicoutputandproductivity%2foutput%2fdatasets%2feconomicactivityfasterindicatorsuk%2fjanuary2020roadsdata/roadstables.xlsx']

Answer 2

檢查字符串終止：

new_list = [link for link in original_list if link.endswith(".xlsx")]

然后您可以打開new_list中的每個鏈接。