將dataframe列轉換為textfile（將行迭代為行）

Question

我在熊貓數據框中有這樣的東西：

Name,Total,Problem
Toyota,2,'They don’t need the oil consumed per trip, only a sum of manually counted damage.'
Mazda,1,'Hello, I got an engine error. See attachment below.'
Kia,2,'Client requires a confirmation that the information provided through CODEXXXX asap.'
Volkswagon,3,'During visual inspection of lights we have found a damage.'

我對獲取df['Problem']列並將其轉換為文本文件感興趣，因此文本文件的輸出如下：

They don’t need the oil consumed per trip, only a sum of manually counted damage.
Hello, I got an engine error. See attachment below.
Client requires a confirmation that the information provided through CODEXXXX asap.
During visual inspection of lights we have found a damage.

我什至不需要文本文件中的索引，因為它將在文本標記應用程序中使用（並且必須以該格式輸入）。 即使df['Problem']的行/元素是一段長字符串，它也必須位於文本行的一行中。

Answer 1

試試下面的代碼：

with open('sample.txt','w') as f:
    for data in list(df['Problem']):
        f.write(data+'\n')

我希望這將有所幫助。

Answer 2

Series的tolist()方法可以在此處完成大部分工作。 您可以使用join在內存中構建整個文本（如果df不太大）：

with open(file, 'w') as out:
    print('\n'.join(df['Problem'].tolist()), file=out)

如果要節省內存，也可以逐個元素打印：

with open(file, 'w') as out:
    for line in df['Problem'].tolist():
        print(line, file=out)