通过 collums/rows 将数据附加到现有 CSV 文件

Question

I am trying to export data into csv. When I export it, it is exported as a singular row and each additional data is appended on the same row. The result is a very long row which is difficult to navigate.

The goal is for each value (Time, Wallets) to have their own collum and each time the script is ran, the new data is appended to the csv under the respective collum. I have tried guides online but wasn't able to find any solutions.

Here is my code if anyone has any suggestions or ideas. . Additionally, if anyone has any suggestions for restructuring my code or making it better, I'd love to hear it. As a beginner I would like to learn as much as possible.

#Open ChromeDriver
PATH = ('/Users/chris/Desktop/chromedriver')
driver = webdriver.Chrome(PATH)

#Get Website 

driver.get("https://bitinfocharts.com/top-100-richest-dogecoin-addresses.html")
driver.implicitly_wait(5)
driver.maximize_window()

#Creates the Time
now = datetime.now()
current_time = now.strftime("%m/%d/%Y, %H:%M:%S ")


#Identify the section of page
time.sleep(3)
page = driver.find_element(By.CSS_SELECTOR,'.table.table-condensed.bb')


#Gather the data
time.sleep(3)
num_of_wallets = page.find_element(By.XPATH, "//html/body/div[5]/table[1]/tbody/tr[10]/td[2]").text

#Write to CSV


table_dict = {"Time":current_time,
            "Wallets":num_of_wallets}

headers = ["Time", "Wallets"]

file = open('dogedata.csv', 'a')
file.write(f'{current_time},{num_of_wallets}')
file.close()

Answer 1

The smallest fix, as Shubham P. pointed out, is to make sure you are writing a "line" by including a line break, like '\n' :

file = open('dogedata.csv', 'a')
file.write(f'{current_time},{num_of_wallets}\n')
file.close()

The far better fix, as martineau pointed out, is to use the csv module: it's standard, well-developed and used, and importantly takes care of issues like escaping and quoting characters, and it only takes one more line:

file = open('dogedata.csv', 'a', newline='')
writer = csv.writer(f)
writer.writerow([current_time, num_of_wallets])
file.close()

Note that newline='' was added to the open() function, which tells open() not to handle newlines, and instead defer to the writer which has CSV-specific smarts for dealing w/newlines.

Also, instead of using string formatting, you just wrap your data in a list ( [current_time, num_of_wallets] ); the writer will convert everything to strings/text.