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a bytes-like object is required, not 'str'

时间: 2023-09-23 13:06:51 浏览: 109

解决Python中报错TypeError: must be str, not bytes问题

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如下所示： #!/usr/bin/python import pickle shoplist=['apple','mango','carrot'] f = open('c:\poem.txt','w') pickle.dump(shoplist,f) f.close() del shoplist f = open('c:\poem.txt','r') storedlist = pickle.load(f) print(storedlist) 执行上述程序时候报错： TypeError: must be str, not bytes 解决方法：在使用open打开文件的时候，加个b f

This error occurs when a function or method expects a bytes-like object (like bytes or bytearray), but instead receives a string (str) object. To fix this error, you can convert the string to bytes using the `encode()` method, like this: ``` my_string = "hello world" my_bytes = my_string.encode() ``` Or, if you have a file or data that you want to read as bytes, open the file in binary mode by adding the 'b' flag to the file mode: ``` with open('my_file.txt', 'rb') as f: my_bytes = f.read() ``` In general, you should always be aware of the data type that a function or method expects and make sure to provide the correct type of input.

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