python - Python 中的自定义 For 循环

Question

是否有任何 Python 方式来执行与下面的代码相同的操作，但以 Python 方式？

我为网页抓取创建了这段代码，但我认为应该有更好的方法将内容添加到列表中，而不是为每个元素重复相同的代码。

这里是我将添加元素的列表:

Proporcao_de_Sobras = []
liq_dir =[]
liq_sobras=[]
liq_reservas=[]
Encerramento=[]
n_emissao =[]
tp_ofert =[]
inv_minimo =[]

这是我用来将元素添加到列表的代码。

try:
    for x in driver.find_elements_by_xpath('//*[@id="tablepress-6"]/tbody/tr[*]/td/span[2]'):
        Proporcao_de_Sobras.append(x.text)
except:
    pass

try:
    for x in driver.find_elements_by_xpath('//*[@id="tablepress-6"]/tbody/tr[*]/td/span[4]'):
        liq_dir.append(x.text)
except:
    pass

try:
    for x in driver.find_elements_by_xpath('//*[@id="tablepress-6"]/tbody/tr[*]/td/span[6]'):
        liq_sobras.append(x.text)
except:
    pass

try:
    for x in driver.find_elements_by_xpath('//*[@id="tablepress-6"]/tbody/tr[*]/td/span[8]'):
        liq_reservas.append(x.text)
except:
    pass

try:
    for x in driver.find_elements_by_xpath('//*[@id="tablepress-6"]/tbody/tr[*]/td/span[10]'):
        Encerramento.append(x.text)
except:
    pass

try:
    for x in driver.find_elements_by_xpath('//*[@id="tablepress-6"]/tbody/tr[*]/td/span[12]'):
        n_emissao.append(x.text)
except:
    pass

try:
    for x in driver.find_elements_by_xpath('//*[@id="tablepress-6"]/tbody/tr[*]/td/span[14]'):
        tp_ofert.append(x.text)
except:
    pass

try:
    for x in driver.find_elements_by_xpath('//*[@id="tablepress-6"]/tbody/tr[*]/td/span[16]'):
        inv_minimo.append(x.text)
except:
    pass

这样持续了 5 到 6 次以上。

Answer 1

这是另一种使用字典的 Python 方式:

def get_data(your_lists):
    data = {}
    for list_index, list_name in enumerate(your_lists):
        try:
            data[list_name] = [x for x in find_elements_by_xpath(f'//*[@id="tablepress-6"]/tbody/tr[*]/td/span[{(list_index + 1) * 2}]')]
        except:
            pass
    return data

your_lists = ['Proporcao_de_Sobras', 'liq_dir', 'loq_reservas', 'Encerramento', 'n_emissao', 'tp_ofert', 'inv_minimo']

all_data = get_data(your_lists)