IOError: [Errno] Invalid mode (' RB ') or filename: ' F:\netData1.mat '

This error occurs when you use the built-in function file () or open (). Either because the file's open mode is incorrect, or if there is a problem with the filename. The former only needs to pay attention to whether the file can be read or writable. The latter is a file-path-related issue that requires R or R to be escaped before the file name, such as file (r "E:\Test.txt", ' r '). or turn the backslash \ into two, such as file ("E:\\test.txt", ' R ').

For example

　　

Scipy.io.loadmat (' F:\Data.mat ') IOError: [Errno] Invalid mode (' RB ') or filename: ' F:\Data.mat '

Solutions

Scipy.io.loadmat (' F:\\data.mat ')    //Just add a backslash

　　

IOError: [Errno] Invalid mode (' RB ') or filename: ' F:\netData1.mat '