小编Jac*_*k A的帖子

我遇到了一个问题，每次运行我的程序（从 .csv 文件读取数据帧）时，都会出现一个名为“未命名”的新列。

运行 3 次后的示例输出列 -

  Unnamed: 0  Unnamed: 0.1            Subreddit  Appearances

这是我的代码。对于每一行，“未命名”列仅增加 1。

df = pd.read_csv(Location)
while counter < 50:
    #gets just the subreddit name
    e = str(elem[counter].get_attribute("href"))
    e = e.replace("https://www.reddit.com/r/", "")
    e = e[:-1]
    if e in df['Subreddit'].values:
        #adds 1 to Appearances if the subreddit is already in the DF
        df.loc[df['Subreddit'] == e, 'Appearances'] += 1
    else:
        #adds new row with the subreddit name and sets the amount of appearances to 1.
        df = df.append({'Subreddit': e, 'Appearances': …