在pandas中使用read_csv读取最后几行

Question

我有一个文件是这样不断增长的：

https|webmail.mahindracomviva.com|application/vnd.ms-sync.wbxml|158|POST|203.101.110.171
https|webmail.mahindracomviva.com||0|POST|203.101.110.171
https|webmail.mahindracomviva.com||0|POST|203.101.110.171
https|www.googleapis.com|application/x-protobuf|246|POST|74.125.200.95
https|webmail.mahindracomviva.com|application/vnd.ms-sync.wbxml|140|POST|203.101.110.171
https|webmail.mahindracomviva.com|application/x-protobuf|52|POST|203.101.110.171
https|www.googleapis.com|application/x-protobuf|502|POST|74.125.200.95
https|www.googleapis.com|application/x-protobuf|40|POST|74.125.200.95

但我只想用熊猫来读最后50行。在

Answer 1

尝试使用pandas tail（），行如下：

filename = "your_file"
last_rows = 3
data = pd.read_csv(filename, header=None, sep = "|")
print(data.tail(last_rows))