如何从python中文件的特定行中查找子字符串[重复]

Question

我正在尝试读取包含数百个名称的 .txt 文件，并且我想查找特定名称。

例如，我有几个类似的名字

John simons
kumar ayush singh
peter calpidi
david brown

等，我想寻找一个子字符串 ayush 如果子字符串存在我想返回完整的字符串，如kumar ayush singh。

我尝试过这样的事情：

try:
    with open('D:\\Any One\\name_list.txt') as names:
        for row in names:
            if row.find(request.strip()) != -1:
               results = row
               print(row)
except Exception as err:
    print(err)

但出现错误：

'charmap' codec can't decode byte 0x81 in position 4467: character maps to undefined

Answer 1

参考号：https://docs.python.org/3.9/library/functions.html#open

查看您喜欢的错误选项。在代码中，我放了replace，因为它会在发生错误的地方放一个标记并继续处理文件。

try:
    with open('D:\\Any One\\name_list.txt',errors='replace') as names:
        for row in names:
            if row.find(request.strip()) != -1:
               results = row
               print(request)
except Exception as err:
    print(err)