Negative value error "could not convert string to float:"

Question

Hello im getting "could not convert string to float:" error. I think I need to use the replace command. I am a novice. That's why I couldn't edit the code. :)

def net_both(stoploss_value, takeprofit_value, wait):
    wait.until(EC.visibility_of_element_located((By.CLASS_NAME, "additional_percent_value")))
    try:
        time.sleep(.5)
        check = driver.find_elements_by_class_name("additional_percent_value")[0]
        check.find_element_by_xpath('./span[contains(@class, "neg")]')
        negative = True
    except NoSuchElementException:
        negative = False

    if negative:
        net_profit = driver.find_elements_by_class_name("additional_percent_value")[0].text.split(" %")
        net_value = -float(net_profit[0].replace('−', ''))
        profits.update({-net_value: ["Stoploss:", stoploss_value, "Take Profit:", takeprofit_value]})
        print(colored(f'Net Profit: -{net_value}% --> Stoploss: {stoploss_value}, Take Profit: {takeprofit_value}', 'red'))

Answer 1

Try to:

• remove .text.split(' %')
• replace -float(net_profit[0]) by float(net_profit.replace('?', '-').rstrip('%'))

if negative:
    net_profit = driver.find_elements_by_class_name("additional_percent_value")[0]
    net_value = float(net_profit.replace('?', '-').rstrip('%'))
    profits.update({-net_value: ["Stoploss:", stoploss_value, "Take Profit:", takeprofit_value]})